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END USER LICENSE AGREEMENT The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networks software. Use of such software is subject to the terms and conditions of the End User License Agreement (“EULA”) posted at https://www.juniper.net/support/eula/.
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Overview of Installing and Replacing Components ....179 M120 Field-Replaceable Units (FRUs) ........179 Tools and Parts Required to Replace M120 Components .
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Tools and Parts Required to Remove Components from an M120 Router ..306 Packing the M120 Router for Shipment ....... . 306 Guidelines for Packing M120 Components for Shipment .
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Agency Approvals for M120 Routers ........
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Figure 56: M120 Routing Engine Alarm Relay Contacts ..... 163 Figure 57: Attaching a Cable to an M120 PIC ......166 Chapter 21 Providing Power to the M120 .
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Figure 112: M120 Routing Engine Serial Number Label ..... 300 Figure 113: M120 CB Serial Number Label ....... 300 Figure 114: M120 FPC Serial Number Label .
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Table 4: M120 Host Subsystem LEDs ........14 Table 5: FEB LEDs on the M120 Craft Interface ......15 Table 6: M120 FPC LEDs .
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Overview of Installing and Replacing Components ....179 Table 67: M120 Field-Replaceable Units ....... . 180 Table 68: Tools and Parts Required .
® To obtain the most current version of all Juniper Networks technical documentation, see the product documentation page on the Juniper Networks website at https://www.juniper.net/documentation/ If the information in the latest release notes differs from the information in the documentation, follow the product Release Notes.
M120 Multiservice Edge Router Hardware Guide Table 1: Notice Icons Icon Meaning Description Informational note Indicates important features or instructions. Caution Indicates a situation that might result in loss of data or hardware damage. Warning Alerts you to the risk of personal injury or death.
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PART 1 Overview System Overview on page 3 M120 Router Release Notes on page 5 Chassis Components and Descriptions on page 7 Cooling System Components and Descriptions on page 19 Host Subsystem Components and Descriptions on page 21 Line Card Components and Descriptions on page 51...
M120 Component Redundancy on page 4 M120 Router Description The M120 Multiservice Edge router is a complete routing system that provides SONET/SDH, ATM, Ethernet, and channelized interfaces for large networks and network applications, such as those supported by Internet service providers (ISPs) and large enterprise customers.
Errata with the M120 Router Documentation on page 5 Outstanding Issues with the M120 Router This section lists outstanding issues with the M120 Multiservice Edge Router. For information about software issues, see the Junos OS Release Notes. There are currently no outstanding issues for the M120 router documentation.
M120 Alarm LEDs and Alarm Cutoff/Lamp Test Button on page 13 M120 Component LEDs on the Craft Interface on page 14 M120 External Clock Interface Ports on the Craft Interface on page 16 M120 Alarm Relay Contacts on the Craft Interface on page 17...
Chapter 3: Chassis Components and Descriptions Figure 3: Rear View of a Fully Configured DC-Powered M120 Router Chassis For chassis serial number information , see “Displaying M120 Router Components and Serial Numbers” on page 297. Related M120 Router Physical Specifications on page 82...
Serial Numbers” on page 297. Related M120 Router Description on page 3 Documentation M120 Router Chassis Description on page 7 M120 Cable Management System Description The cable management system (see Figure 5 on page 11) consists of a row of nine semicircular plastic bobbins mounted on the front of the router below the FPC card cage.
Chapter 3: Chassis Components and Descriptions Figure 5: M120 Cable Management System Related Maintaining M120 PICs and PIC Cables on page 275 Documentation Replacing an M120 PIC Cable on page 228 M120 Craft Interface Description The craft interface allows you to view status and troubleshooting information at a glance and to perform many system control functions.
The alarm relay contacts are located below the Routing Engine ports. M120 External Clock Interface Ports on the Craft Interface Two external clock ports...
Replacing Alarm Relay Wires on the M120 Craft Interface on page 183 RJ-45 Connector Pinouts for the External Clock Ports on page 107 RJ-45 Connector Pinouts for the M120 Routing Engine ETHERNET Port on page 106 RJ-45 Connector Pinouts for the Routing Engine AUX and CONSOLE Ports on page 106...
M120 Craft Interface Description on page 11 Documentation M120 Routing Engine Interface Ports and Status Indicators on page 28 M120 External Clock Interface Ports on the Craft Interface on page 16 Replacing the M120 Craft Interface on page 184 M120 Component LEDs on the Craft Interface...
, are located on the lower left of the craft interface under the POWER label. Table 7 on page 15 describes the functions of the power supply LEDs. Table 7: Power Supply LEDs on the M120 Craft Interface Label Color State Description...
The LED on the lower right as you face the craft interface indicates if there is a fault. Table 8 on page 16 describes the external clock port LEDs, Table 8: External Clock LEDs on the M120 Craft Interface Label Color State...
RJ-45 Connector Pinouts for the External Clock Ports on page 107 Documentation Connecting the M120 Router to an External Clocking Device on page 163 M120 Alarm Relay Contacts on the Craft Interface The host interface has two alarm relay contacts for connecting the router to external...
Figure 8: M120 Front Fan Tray Figure 9: M120 Rear Fan Tray Related Troubleshooting the M120 Cooling System on page 286 Documentation Maintaining the M120 Air Filter on page 263 Replacing an M120 Air Filter on page 187...
M120 RE-A-1800x2 Routing Engine Description on page 25 RE-A-1800 Routing Engine LEDs on page 27 M120 Routing Engine Interface Ports and Status Indicators on page 28 Routing Engine Specifications on page 29 Supported Routing Engines by Router on page 33...
M120 Multiservice Edge Router Hardware Guide M120 Control Board (CB) Description on page 47 M120 Routing Engine Description The Routing Engine runs the Junos OS. The software processes that run on the Routing Engine maintain the routing tables, manage the routing protocols used on the router, control the router interfaces, control some chassis components, and provide the interface for system management and user access to the router.
DRAM), issue the show chassis routing-engine command. Figure 12: USB Memory Device in an M120 Routing Engine Routing Engine Boot Sequence The Routing Engine boots from the storage media in this order: the USB device, then the CompactFlash card (if present), then the hard disk (or two solid state drives (SSD) in the case of the RE-A-1800x2, which appear as DISK1 and DISK2), and then the LAN.
Maintaining the M120 Host Subsystem on page 266 Replacing an M120 Routing Engine on page 195 Routing Engine Interface Cable and Wire Specifications for the M120 Router on page 105 M120 Routing Engine LEDs Each Routing Engine has one LED that indicates its status. The LED, labeled...
M120 Multiservice Edge Router Hardware Guide USB port—Provides a removable media interface through which you can install the Junos OS manually. See Figure 14 on page 27. Junos supports USB version 1.0. CompactFlash card—Provides primary storage for software images, configuration files, and microcode.
M120 Routing Engine Description on page 22 Documentation M120 Host Subsystem Description on page 21 Taking the M120 Host Subsystem Offline on page 267 Supported Routing Engines by Router on page 33 RE-A-1800 Routing Engine LEDs Each Routing Engine has four LEDs that indicate its status. The LEDs, labeled...
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M120 Multiservice Edge Router Hardware Guide Table 11: Routing Engine Specifications (continued) Routing Connection First Junos OS Switch Control Engine Processor Memory to PFEs Disk Media Support Board RE-C1800 1.8-GHz 8 GB Gigabit 4 GB T1600 router in a CB-T for a...
M120 Multiservice Edge Router Hardware Guide NOTE: Use shielded CAT5e cable for connecting the , and CONSOLE ports in RE-S-X6-64G, REMX2K-X8-64G, and REMX2008-X8-64G MGMT Routing Engines. Table 12: End-of-Life Routing Engine Specifications Routing Connection First Junos OS Engine Processor Memory...
M120 Multiservice Edge Router Hardware Guide M7i Routing Engines Table 13 on page 34 lists the Routing Engines supported by the M7i router. The M7i router supports 32-bit Junos OS only. Table 13: M7i Routing Engines Name in CLI First Supported 32-bit...
RE-A-1000-2048 RE-A-1000 fxp0 fxp1 fxp2 M120 Routing Engines Table 16 on page 35 lists the Routing Engines supported by the M120 router. Table 16: M120 Routing Engines First First Supported Supported Management Name in CLI 32-bit Junos OS 64-bit Junos...
M120 Multiservice Edge Router Hardware Guide PTX3000 Routing Engines Table 28 on page 42 lists the Routing Engines supported on the PTX3000. NOTE: The PTX3000 supports 64-bit Junos OS only. Table 28: PTX3000 Routing Engines Name in CLI First Supported Junos OS...
Routing Engine Specifications on page 29 Documentation Understanding Internal Ethernet Interfaces Understanding Management Ethernet Interfaces M120 Control Board (CB) Description Each CB works with an installed Routing Engine to provide control and monitoring functions for the router (see Figure 15 on page 48).
Power circuits for the Routing Engine and CB. Offline button—Takes the CB offline when pressed. Related M120 Control Board (CB) LEDs on page 48 Documentation Maintaining the M120 Host Subsystem on page 266 Replacing an M120 CB on page 202...
FPC, are enabled. Forwarding on other FPC slots continues uninterrupted during this process. Figure 16: FPC and CFPCs Installed in an M120 Router Chassis Faceplates on FPCs for the M120 router are labeled with the FPC type ( , or FPC1...
Chapter 6: Line Card Components and Descriptions Figure 17: FPC1, FPC2, and FPC3 for the M120 Router FPC Components on page 53 FPC Terminology on page 53 FPC Components Each FPC consists of the following components: FPC card carrier, which includes the PIC slots.
. For more information about the FPC LEDs FPC0 FPC5 located on the craft interface, see “FPC LEDs on the M120 Craft Interface” on page Related M120 FPCs and CFPCs Supported on page 56 Documentation Maintaining M120 FPCs and CFPCs on page 270...
Figure 18: FPC and CFPCs Installed in an M120 Router Chassis Two CFPCs are available for the M120 router: a 10-Gigabit Ethernet CFPC and an OC192 CFPC. Each CFPC is rated at 10 Gbps full duplex. Both CFPCs provide receptacles for XFP optical transceivers.
M120 FPCs and CFPCs Supported M120 routers support the FPCs listed in Table 39 on page You can install any combination of these FPCs in the M120 router. Table 39: FPCs Supported by the M120 Router Maximum Number of PICs Supported...
A CFPC is a combination of a PIC and an FPC. It contains the interface circuitry and the FPC as a single assembly. The CFPCs provide receptacles for XFP optical transceivers. The M120 chassis provides two slots for CFPCs, and supports any combination of CFPC types. M120 routers support the CFPCs listed in...
Replacing an M120 PIC on page 223 M120 PIC LEDs Each PIC has LEDs located on the faceplate. For more information about LEDs on the PIC faceplate, see the “LEDs” section for each PIC in the M120 Multiservice Edge Router Interface Module Reference. Related...
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Chapter 6: Line Card Components and Descriptions Table 41: PICs Supported in the M120 Router (continued) First Junos OS PIC Family and Type Ports Model Number Release Support ATM2 OC3/STM1 IQ PIC (M120 Router) PB-2OC3-ATM2-MM 8.0R2 PB-2OC3-ATM2-SMIR ATM2 OC12/STM4 IQ PICs (M120 Router) PB-1OC12-ATM2-MM 8.0R2...
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M120 Multiservice Edge Router Hardware Guide Table 41: PICs Supported in the M120 Router (continued) First Junos OS PIC Family and Type Ports Model Number Release Support Channelized OC3/STM1 Enhanced IQ (IQE) PIC with PB-2CHOC3-STM1-IQE-SFP SFP (M120 Router) Channelized OC12/STM4 Enhanced IQ (IQE) PIC...
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Chapter 6: Line Card Components and Descriptions Table 41: PICs Supported in the M120 Router (continued) First Junos OS PIC Family and Type Ports Model Number Release Support Gigabit Ethernet IQ EOL PICs with SFP (M120 PB-1GE-SFP-QPP 8.0R2 Router) PB-2GE-SFP-QPP...
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M120 Multiservice Edge Router Hardware Guide Table 41: PICs Supported in the M120 Router (continued) First Junos OS PIC Family and Type Ports Model Number Release Support Adaptive Services II EOL PIC (M120 Router) – PB-AS2 8.0R2 Adaptive Services II Layer 2 Services EOL PIC (M120 –...
M120 PIC/FPC Compatibility on page 66 M120 End-of-Life PICs Supported Table 42 on page 63 lists the end-of-life PICs supported in the M120 router. The PICs are listed alphabetically by PIC family. NOTE: The M120 router is now end-of-life. See the JTAC support bulletin TSB16809 for additional information about the PICs and other associated FRUs that moved to end-of-life with the router.
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M120 Multiservice Edge Router Hardware Guide Table 42: End-of-Life PICs Supported in the M120 Router (continued) First Junos OS PIC Family and Type Ports Model Number Release Support Channelized STM1 IQ EOL PIC (M120 Router) PB-1CHSTM1-SMIR-QPP 8.0R2 Channelized OC3 IQ EOL PIC (M120 Router) PB-1CHOC3-SMIR-QPP 8.0R2...
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Chapter 6: Line Card Components and Descriptions Table 42: End-of-Life PICs Supported in the M120 Router (continued) First Junos OS PIC Family and Type Ports Model Number Release Support 10-Gigabit Ethernet IQ2 EOL PIC with XFP (M120 PC-1XGE-TYPE3-XFP-IQ2 Router) Services Adaptive Services II EOL PIC (M120 Router) –...
PIC/FPC compatibility matrix that indicates the first Junos OS Release in which an FPC supports each PIC currently supported for the M120 router. For example, Junos OS Release 8.0R2 is the first release in which the FPC1 supports the ATM2 DS3 IQ PIC.
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Chapter 6: Line Card Components and Descriptions Table 43: M120 PIC/FPC Compatibility (continued) Number of PIC Type Ports PIC Model Number FPC1 FPC2 FPC3 ChSTM1 IQ PB-1CHSTM1-SMIR-QPP 8.0R2 – – ChT1 IQ PB-10CHT1-RJ48-QPP 8.0R2 – – Channelized Enhanced IQ (IQE) PICs...
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M120 Multiservice Edge Router Hardware Guide Table 43: M120 PIC/FPC Compatibility (continued) Number of PIC Type Ports PIC Model Number FPC1 FPC2 FPC3 Fast Ethernet PB-48FE-TX – 8.0R2 – Gigabit Ethernet PICs Gigabit Ethernet, SFP PB-1GE-SFP 8.0R2 – – Gigabit Ethernet, SFP PB-2GE-SFP –...
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Chapter 6: Line Card Components and Descriptions Table 43: M120 PIC/FPC Compatibility (continued) Number of PIC Type Ports PIC Model Number FPC1 FPC2 FPC3 Services PICs Adaptive Services II (AS) EOL PB-AS2 8.0R2 Adaptive Services II (AS) Layer 2 PB-AS2-LAYER2SERVICES 8.0R2...
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M120 Multiservice Edge Router Hardware Guide Table 43: M120 PIC/FPC Compatibility (continued) Number of PIC Type Ports PIC Model Number FPC1 FPC2 FPC3 OC12/STM4 (Multi-Rate), SFP PB-4OC3-4OC12-SON-SFP – – OC48c/STM16, SFP PC-4OC48-SON-SFP – – 8.0R2 OC48c/STM16 SFP EOL PB-1OC48-SON-SFP 8.0R2...
M120 Power Supply LEDs on page 73 M120 Power Supplies Description The M120 router is configurable with either one or two AC or DC power supplies. The power supplies connect to the midplane, which distributes the different output voltages produced by the power supplies to the router components, depending on their voltage requirements.
M120 Power Supply LEDs on page 73 Documentation M120 Router Power Requirements on page 88 Connecting Power to a DC-Powered M120 Router on page 169 Maintaining the M120 Power Supplies on page 277 Replacing an M120 DC Power Supply on page 245...
Maintaining the M120 Power Supplies on page 277 Replacing an M120 AC Power Supply on page 239 M120 AC Power, Connection, and Power Cord Specifications on page 93 M120 Power Supply LEDs The LED on each power supply faceplate indicates the status of the power supply (see Table 44 on page 74, which applies to the AC and DC power supply).
M120 Forwarding Engine Boards (FEBs) LEDs on page 77 M120 Forwarding Engine Boards (FEBs) Description The M120 router provides redundant Forwarding Engine Boards (FEBs). The FPC (the board that hosts the PICs) is separate from the FEB (the board that handles the packets).
A crossbar switch that provides connection between the FEB WAN links and the FPC WAN links. Three LEDs located on the FEB faceplate that display the status of the FEB. “M120 Forwarding Engine Boards (FEBs) LEDs” on page 77 describes the functions of the FEB LEDs.
ACTIVE a FEB is designated as a backup and has not been failed over to. Related M120 Forwarding Engine Boards (FEBs) Description on page 75 Documentation Replacing an M120 FEB on page 255 Troubleshooting M120 FEBs on page 289 Maintaining the M120 FEBs on page 278...
Route and dress all cables to minimize the blockage of airflow to and from the chassis. Related M120 Cabinet Size and Clearance Requirements on page 82 Documentation Installing the Mounting Hardware for a Front-Mount Four-Post Rack or Cabinet on...
Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics Components Industry Association. You can stack four M120 routers in a rack that has at least 48 U (84 in. or 2.1 m) of usable vertical space.
Installing the Mounting Hardware for a Front-Mount Open-Frame Rack on page 121 Installation Safety Warnings for Juniper Networks Devices on page 322 Installing the M120 Router Without Using a Mechanical Lift on page 139 M120 Clearance Requirements for Airflow and Hardware Maintenance...
Installing the Mounting Hardware for a Front-Mount Open-Frame Rack on page 121 Installation Safety Warnings for Juniper Networks Devices on page 322 Installing the M120 Router Without Using a Mechanical Lift on page 139 M120 Router Environmental Specifications Table 49 on page 86 specifies the environmental specifications required for normal router operation.
Chapter 9: Preparation Overview Table 49: M120 Router Environmental Specifications (continued) Description Value Temperature Normal operation ensured in temperature range of 32°F (0°C) to 104°F (40°C) Nonoperating storage temperature in shipping container: –40°F (–40°C) to 158°F (70°C) Seismic Designed to meet Telcordia Technologies Zone 4 earthquake...
Table 53 on page 89 lists the power requirements for various hardware components when the router is operating under typical voltage conditions. For PIC power requirements, see the M120 Multiservice Edge Router Interface Module Reference. Table 50: Power System Electrical Specifications...
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DC-powered router. These examples use generalized values for PICs. For PIC power requirements, see the M120 Multiservice Edge Router Interface Module Reference.
CHAPTER 10 AC Power Requirements and Specifications M120 AC Power, Connection, and Power Cord Specifications on page 93 Electrical Specifications for the M120 AC Power Supply on page 95 M120 AC Power, Connection, and Power Cord Specifications In the AC power configuration, the router can have up to two load-sharing AC power...
M120 Multiservice Edge Router Hardware Guide WARNING: Translation from Japanese: The attached power cable is only for this product. Do not use the cable for another product. NOTE: In North America, AC power cords must not exceed 4.5 m (approximately 14.75 ft) in length, to comply with National Electrical Code (NEC) Sections 400-8 (NFPA 75, 5-2.2) and 210-52, and Canadian Electrical...
M120 AC Power Supply Description on page 72 Documentation Replacing an M120 AC Power Supply on page 239 Replacing an M120 AC Power Supply Cord on page 244 Connecting Power to an AC-Powered M120 Router on page 167 Electrical Specifications for the M120 AC Power Supply Table 55 on page 96 lists the AC power supply electrical specifications.
Specifications M120 DC Power, Connection, and Cable Specifications on page 97 Electrical Specifications for the M120 DC Power Supply on page 100 M120 DC Power, Connection, and Cable Specifications In the DC power configuration, the router contains two DC power supplies (see...
Figure 27 on page 98 shows a typical DC source cabling arrangement. Figure 27: Typical DC Source Cabling to the M120 Router WARNING: Power plant ground and chassis ground must be connected to the same building ground.
You can use the to find information about Hardware Compatibility Tool the pluggable transceivers supported on your Juniper Networks device. To calculate the power budget and power margin, perform the following tasks: Calculating Power Budget for Fiber-Optic Cable on page 102...
Management Cable and Transceiver Specifications and Pinouts Routing Engine Interface Cable and Wire Specifications for the M120 Router on page 105 RJ-45 Connector Pinouts for the M120 Routing Engine ETHERNET Port on page 106 RJ-45 Connector Pinouts for the Routing Engine AUX and CONSOLE Ports on page 106...
M120 Multiservice Edge Router Hardware Guide RJ-45 Connector Pinouts for the M120 Routing Engine ETHERNET Port The port on the craft interface labeled is an autosensing 10/100-Mbps Ethernet ETHERNET RJ-45 receptacle that accepts an Ethernet cable for connecting the Routing Engine to a management LAN (or other device that supports out-of-band management).
DSR/DCD Data Set Ready Clear to Send Related Replacing the Console or Auxiliary Cable on the M120 Routing Engine on page 207 Documentation Maintaining M120 PICs and PIC Cables on page 275 Installing an M120 PIC Cable on page 229...
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M120 Multiservice Edge Router Hardware Guide Related M120 External Clock Interface Ports on the Craft Interface on page 16 Documentation Maintaining M120 PICs and PIC Cables on page 275 Installing an M120 PIC Cable on page 229 M120 PICs Description on page 57...
Unpacking the M120 on page 113 Installing the Mounting Hardware on page 119 Installing the M120 With a Mechanical Lift on page 125 Installing the M120 Without a Mechanical Lift on page 129 Connecting the M120 to Ground on page 151...
Install the router. Installing the M120 Router Using a Mechanical Lift on page 125 Installing the M120 Router Without Using a Mechanical Lift on page 139 Connect cables to the network and external devices. “Connecting the M120 Router to Management and Alarm Devices” on page 153.
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M120 Multiservice Edge Router Hardware Guide Connect the AC power cord or DC power cables: Connecting Power to an AC-Powered M120 Router on page 167 Connecting Power to a DC-Powered M120 Router on page 169 Power on the router. “Powering On the M120 Router” on page 170.
CHAPTER 15 Unpacking the M120 Tools and Parts Required to Unpack the M120 Router on page 113 Unpacking the M120 Router on page 113 Verifying M120 Parts Received on page 115 Tools and Parts Required to Unpack the M120 Router...
115, and an accessory box, which contains the parts listed in Table 64 on page 116. The parts shipped with your router can vary. Table 63: Parts List for a Fully Configured M120 Router Component Quantity Chassis, including midplane, craft interface...
M120 Multiservice Edge Router Hardware Guide Table 63: Parts List for a Fully Configured M120 Router (continued) Component Quantity PICs Up to sixteen Type 1 PICs Up to sixteen Type 2 PICs Up to four Type 3 PICs FEBs Up to 6...
The hole distances are relative to one of the standard U divisions on the rack. The bottom of all mounting shelves is at 0.04 in. (0.02 U) above a U division. Table 65: Four-Post Rack or Cabinet Mounting Hole Locations for the M120 Router Large...
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M120 Multiservice Edge Router Hardware Guide On the front rack rails, install cage nuts in the holes specified in Table 65 on page 119 for the large shelf and the spacer bars. On the front of each front rack rail, partially insert a mounting screw into the hole containing the lowest cage nut.
Chapter 16: Installing the Mounting Hardware Figure 29: Installing the M120 Mounting Hardware for a Four-Post Rack or Cabinet Related M120 Rack Mounting Requirements on page 83 Documentation M120 Site Preparation Checklist on page 81 Installation Safety Warnings for Juniper Networks Devices on page 322...
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M120 Multiservice Edge Router Hardware Guide Table 66: Open-Frame Rack Mounting Hole Locations for the M120 Router (continued) Hole Distance Above U Division Large Shelf 15.51 in. (39.4 cm) 8.86 U 13.76 in. (34.9 cm) 7.86 U 12.01 in. (30.5 cm) 6.86 U...
Chapter 16: Installing the Mounting Hardware Figure 30: Installing the M120 Mounting Hardware for an Open-Frame Rack Open-frame rack Large mounting shelf Related M120 Rack Mounting Requirements on page 83 Documentation M120 Site Preparation Checklist on page 81 Installation Safety Warnings for Juniper Networks Devices on page 322...
CHAPTER 17 Installing the M120 With a Mechanical Lift Tools Required to Install the M120 Router Using a Mechanical Lift on page 125 Installing the M120 Router Using a Mechanical Lift on page 125 Tools Required to Install the M120 Router Using a Mechanical Lift...
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For details, see “M120 Clearance Requirements for Airflow and Hardware Maintenance” on page Load the router onto the lift, making sure it rests securely on the lift platform.
Chapter 17: Installing the M120 With a Mechanical Lift installing the router in an open-frame rack, install a mounting screw into each of the open mounting holes aligned with the rack, starting from the bottom. Visually inspect the alignment of the router. If the router is installed properly in the rack, all the mounting screws on one side of the rack should be aligned with the mounting screws on the opposite side and the router should be level.
Reinstalling Components in the Chassis After Installing the M120 Router Without a Mechanical Lift on page 142 Tools and Parts Required to Install the M120 Router Without a Mechanical Lift To install the router, you need the following tools and parts: Phillips (+) screwdrivers, numbers 1 and 2 3/8-in.
M120 Multiservice Edge Router Hardware Guide cables to the router. Remove components from the chassis, first from the rear and then from the front. Removing the Power Supplies on page 130 Removing FEBs on page 131 Removing CBs on page 132...
Chapter 18: Installing the M120 Without a Mechanical Lift Figure 32: Removing a Power Supply Before Installing the M120 Router CB 0 FEB 0 FEB 1 FEB 2 FEB 3 FEB 4 FEB 5 PEM 0 PEM 1 Removing FEBs Six FEBs are installed in the router.
Repeat the procedure for each of the remaining FEBs. Figure 33: Removing a FEB Before Installing the M120 Router Removing CBs The router can have one or two CBs. They are located in the right rear of the chassis in the slots marked .
Repeat the procedure for the second CB. Figure 34: Removing a CB Before Installing the M120 Router Removing a Fan Tray In the front of the chassis, the upper fan tray is located above the FPC card cage, and the lower fan tray is located below the FPC card cage.
Chapter 18: Installing the M120 Without a Mechanical Lift Figure 36: Removing a Lower Rear Fan Tray Before Installing the M120 Router Removing the Cable Management System The cable management system is located below the FPC card cage. The cable management system weighs approximately 5 lb (2.3 kg).
M120 Multiservice Edge Router Hardware Guide Figure 37: Removing the Cable Management System Before Installing the M120 Router Removing FPCs The router holds up to four FPCs, which are installed vertically in the front of the router. An empty FPC weighs 9.0 lb (4.0 kg). A fully configured FPC can weigh up to 12.3 lb (5.6 kg).
Repeat the procedure for each remaining FPC. Figure 38: Removing an FPC Before Installing the M120 Router Removing a CFPC The router holds up to two CFPCs, which are installed vertically in the front of the router.
Chapter 18: Installing the M120 Without a Mechanical Lift Related M120 Router Chassis Description on page 7 Documentation M120 Router Physical Specifications on page 82 M120 Chassis Lifting Guidelines on page 321 General Safety Warnings for Juniper Networks Devices on page 314...
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For details, see “M120 Clearance Requirements for Airflow and Hardware Maintenance” on page Position the router in front of the rack or cabinet, centering it in front of the mounting shelves.
Chapter 18: Installing the M120 Without a Mechanical Lift Figure 40: Installing the M120 Router in the Rack NOTE: This illustration depicts the router being installed in an open-frame rack. For an illustration of the mounting hardware required for a four-post...
M120 Multiservice Edge Router Hardware Guide Reinstalling Components in the Chassis After Installing the M120 Router Without a Mechanical Lift After the router is installed in the rack, you reinstall the removed components before booting and configuring the router. Reinstall the components in the chassis, first in the...
Chapter 18: Installing the M120 Without a Mechanical Lift Figure 41: Reinstalling a CB After Installing the M120 Router Reinstalling the FEBs To reinstall the FEBs (see Figure 42 on page 144): Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point.
M120 Multiservice Edge Router Hardware Guide Figure 42: Reinstalling a FEB After Installing the M120 Router Reinstalling the Power Supplies Reinstall the left power supply first and then the right power supply. To reinstall AC or DC power supplies (see...
Chapter 18: Installing the M120 Without a Mechanical Lift Figure 43: Reinstalling a Power Supply After Installing the M120 Router Reinstalling FPCs To reinstall an FPC (see Figure 44 on page 146): Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point.
Grasp both ejector handles and rotate them simultaneously clockwise until the FPC is fully seated. Repeat the procedure to reinstall each remaining FPC. Figure 44: Reinstalling an FPC After Installing the M120 Router Reinstalling a CFPC To reinstall a CFPC (see...
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Chapter 18: Installing the M120 Without a Mechanical Lift Lift the CFPC into place and carefully align first the bottom, then the top of the CFPC with the guides inside the card cage. Slide the CFPC all the way into the card cage until you feel resistance.
M120 Multiservice Edge Router Hardware Guide Figure 45: Reinstalling a CFPC After Installing the M120 Router Reinstalling the Fan Trays To reinstall the fan trays (see Figure 46 on page 149): Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point.
Chapter 18: Installing the M120 Without a Mechanical Lift Figure 46: Reinstalling a Front Fan Tray After Installing the M120 Router Reinstalling the Cable Management System To reinstall the cable management system: Position the cable management system on the studs on the lower front of the chassis.
CHAPTER 19 Connecting the M120 to Ground Connecting the Grounding Cable to the M120 Router on page 151 Connecting the Grounding Cable to the M120 Router You ground the router by connecting a grounding cable to earth ground and then attaching it to the chassis grounding points using two screws.
Tools and Parts Required to Connect the M120 Router on page 153 Connecting the M120 Router to Management and Alarm Devices on page 153 Connecting the M120 Router to a Network for Out-of-Band Management on page 160 Connecting the M120 Router to an External Alarm-Reporting Device on page 161...
105. Figure 48: M120 Routing Engine Management Ports and Alarm Relay Contacts Connecting the M120 Router to a Management Console or Auxiliary Device on page 155 Connecting the M120 Router to a Network for Out-of-Band Management on page 156 Connecting the M120 Router to an External Alarm-Reporting Device on page 158...
Chapter 20: Connecting the M120 to External Devices Connecting the M120 Router to a Management Console or Auxiliary Device To use a system console to configure and manage the Routing Engine, connect it to the appropriate CONSOLE port on the craft interface. To use a laptop, modem, or other auxiliary device, connect it to the appropriate port on the craft interface.
M120 Multiservice Edge Router Hardware Guide Figure 50: M120 Routing Engine Management Ports and Alarm Relay Contacts Connecting the M120 Router to a Network for Out-of-Band Management To connect the Routing Engine to a network for out-of-band management, connect an Ethernet cable with RJ-45 connectors to the port on the craft interface.
Figure 52: M120 Routing Engine External Device Ports See Also M120 Power Supplies Description on page 71 Connecting the Grounding Cable to the M120 Router on page 151 Powering On the M120 Router on page 170 General Electrical Safety Warnings for Juniper Networks Devices on page 339...
M120 Multiservice Edge Router Hardware Guide Connecting the M120 Router to an External Alarm-Reporting Device To connect the router to external alarm-reporting devices, attach wires to the RED ALARM relay contacts on the craft interface. A system condition that triggers...
If attaching a reporting device for the other kind of alarm, repeat the procedure. See Also M120 Power Supplies Description on page 71 Connecting the Grounding Cable to the M120 Router on page 151 Powering On the M120 Router on page 170 General Electrical Safety Warnings for Juniper Networks Devices on page 339...
ETHERNET such cable is provided with the router. For cable specifications, see “Routing Engine Interface Cable and Wire Specifications for the M120 Router” on page 105. To connect the Routing Engine to a network for out-of-band management: Turn off the power to the management device.
Related M120 Power Supplies Description on page 71 Documentation Connecting the Grounding Cable to the M120 Router on page 151 Powering On the M120 Router on page 170 General Electrical Safety Warnings for Juniper Networks Devices on page 339 Connecting the M120 Router to an External Alarm-Reporting Device...
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M120 Multiservice Edge Router Hardware Guide The terminal blocks that plug into the alarm relay contacts are supplied with the router. They accept wire of any gauge between 28-AWG and 14-AWG (0.08 and 2.08 mm which is not provided. Use the wire gauge appropriate for the external device you are connecting.
Related M120 Power Supplies Description on page 71 Documentation Connecting the Grounding Cable to the M120 Router on page 151 Powering On the M120 Router on page 170 General Electrical Safety Warnings for Juniper Networks Devices on page 339 Connecting the M120 Router to an External Clocking Device...
Related M120 Control Board (CB) Description on page 47 Documentation M120 External Clock Interface Ports on the Craft Interface on page 16 Connecting PIC Cables to the M120 Router After installing the router into the rack as described in “Installing the M120 Router Using a Mechanical Lift”...
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Chapter 20: Connecting the M120 to External Devices Have ready a length of the type of cable used by the PIC. For cable specifications, see the M20 PIC Reference. If the PIC cable connector port is covered by a rubber safety plug, remove the plug.
CHAPTER 21 Providing Power to the M120 Connecting Power to an AC-Powered M120 Router on page 167 Connecting Power to a DC-Powered M120 Router on page 169 Powering On the M120 Router on page 170 Powering Off the M120 Router on page 171...
Related Installing an M120 AC Power Supply on page 242 Documentation Electrical Specifications for the M120 AC Power Supply on page 95 M120 AC Power Supply Description on page 72 M120 Power Supply LEDs on page 73 Connecting Power to a DC-Powered M120 Router You connect DC power to the router by attaching power cables from the DC power sources to the terminal studs on the power supply faceplates.
M120 Multiservice Edge Router Hardware Guide Figure 59: Connecting DC Power to the M120 Router Related DC Power Electrical Safety Guidelines for the M120 Router on page 347 Documentation Electrical Specifications for the M120 DC Power Supply on page 100...
M120 AC Power Supply Description on page 72 Documentation Connecting Power to an AC-Powered M120 Router on page 167 Connecting Power to a DC-Powered M120 Router on page 169 General Electrical Safety Warnings for Juniper Networks Devices on page 339...
CHAPTER 22 Configuring the Junos Software Initially Configuring Junos OS on the M120 Router on page 173 Initially Configuring Junos OS on the M120 Router The MX240 router is shipped with Junos OS preinstalled and ready to be configured when the MX240 router is powered on.
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M120 Multiservice Edge Router Hardware Guide Start the CLI. root# cli root@> Enter configuration mode. cli> configure [edit] root@# Configure the name of the router. If the name includes spaces, enclose the name in quotation marks (“ ”). [edit] root@# set system host-name host-name Create a management console user account.
Table 67 on page 180 lists the FRUs for the M120 router. If the router contains a redundant host subsystem, the Control Board (CB) and the Routing Engine are hot-removable and hot-insertable. Before you replace a CB or a Routing Engine, you must take the host subsystem offline (see “Taking the M120 Host Subsystem Offline”...
Related M120 Router Chassis Description on page 7 Documentation Overview of Troubleshooting Resources for the M120 Router on page 283 Tools and Parts Required to Replace M120 Components To replace hardware components, you need the tools and parts listed in Table 68 on page 180.
CHAPTER 24 Replacing Chassis Components Replacing Alarm Relay Wires on the M120 Craft Interface on page 183 Replacing the M120 Craft Interface on page 184 Replacing Alarm Relay Wires on the M120 Craft Interface To connect the router to external alarm-reporting devices, attach wires to the YELLOW relay contacts on the craft interface.
M120 Alarm Relay Contacts on the Craft Interface on page 17 Documentation Connecting the M120 Router to an External Alarm-Reporting Device on page 158 Preventing Electrostatic Discharge Damage to an M120 Router on page 316 M120 Routing Engine Interface Ports and Status Indicators on page 28...
Disconnect attached cable. Figure 61: Removing the M120 Craft Interface See Also Preventing Electrostatic Discharge Damage to an M120 Router on page 316 M120 Craft Interface Description on page 11 M120 Alarm Relay Contacts on the Craft Interface on page 17...
Figure 62: Installing the M120 Craft Interface See Also Preventing Electrostatic Discharge Damage to an M120 Router on page 316 M120 Craft Interface Description on page 11 M120 Alarm Relay Contacts on the Craft Interface on page 17...
CHAPTER 25 Replacing Cooling System Components Replacing an M120 Air Filter on page 187 Replacing an M120 Fan Tray on page 190 Replacing an M120 Air Filter The router has one air filter that installs horizontally below the front lower fan tray within the air intake plenum.
Figure 63: Removing the M120 Air Filter See Also M120 Cooling System Description on page 19 Maintaining the M120 Air Filter on page 263 Troubleshooting the M120 Cooling System on page 286 Installing the M120 Air Filter on page 188...
“Maintaining M120 PICs and PIC Cables” on page 275. Figure 64: Installing the M120 Front Air Filter See Also M120 Cooling System Description on page 19 Maintaining the M120 Air Filter on page 263 Troubleshooting the M120 Cooling System on page 286...
M120 Multiservice Edge Router Hardware Guide Maintaining the M120 Air Filter on page 263 Troubleshooting the M120 Cooling System on page 286 Replacing an M120 Fan Tray The router has two front fan trays and two rear fan trays. Both the front and rear fan trays install horizontally above and below the FPC card cage.
Chapter 25: Replacing Cooling System Components Figure 68: Installing an M120 Lower Rear Fan Tray See Also M120 Cooling System Description on page 19 Maintaining the M120 Fan Trays on page 264 Troubleshooting the M120 Cooling System on page 286...
Replacing an M120 CB on page 202 Replacing Connections to M120 Routing Engine Interface Ports on page 206 Replacing the Console or Auxiliary Cable on the M120 Routing Engine on page 209 Replacing the Management Ethernet Cable on the M120 Routing Engine on page 210...
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If the Routing Engine to be replaced is currently functioning as the master Routing engine, switch it to be the backup before removing it. See “Taking the M120 Host Subsystem Offline” on page 267. To remove a Routing Engine from a CB (see...
Figure 69: Removing an M120 Routing Engine See Also M120 Routing Engine Description on page 22 M120 Routing Engine Interface Ports and Status Indicators on page 28 Installing an M120 Routing Engine on page 197 Installing an M120 Routing Engine...
Replacing an SSD Drive on an RE-A-1800 or RE-S-1800 Each RE-1800 Routing Engine supports two solid-state drives (SSD) specified by Juniper Networks. The RE-1800 ships with one SSD installed. The spare SSD is Juniper part number RE-SSD-32G-UPG.Figure 71 on page 199...
Close the access door and tighten the thumbscrew to secure the door. Mount the new storage drive. Related Returning a Hardware Component to Juniper Networks, Inc. on page 305 Documentation Replacing a DIMM Module in M120 Routing Engines Removing a M120 DIMM Module on page 200...
Push the plastic ejectors to close the empty DIMM module slot. See Also M120 Routing Engine Description on page 22 Replacing an M120 Routing Engine on page 195 Installing a M120 DIMM Module on page 201 Installing a M120 DIMM Module...
M120 Multiservice Edge Router Hardware Guide Figure 73: Installing the DIMM Module See Also M120 Routing Engine Description on page 22 Replacing an M120 Routing Engine on page 195 Removing a M120 DIMM Module on page 200 Related M120 Routing Engine Description on page 22...
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Before you replace a CB, you must take the host subsystem offline. If there is only one host subsystem, taking the host subsystem offline shuts down the router. See “Taking the M120 Host Subsystem Offline” on page 267. CAUTION: If the CB to be replaced is associated with the Routing Engine currently functioning as the master Routing engine, switch it to the backup before removing the CB.
M120 Multiservice Edge Router Hardware Guide Figure 74: Removing an M120 CB See Also M120 Control Board (CB) Description on page 47 M120 Control Board (CB) LEDs on page 48 Installing an M120 CB on page 204 Installing an M120 CB...
To check the status of the CB, use the CLI command: user@host> show chassis environment cb Figure 75: Installing an M120 CB See Also M120 Control Board (CB) Description on page 47 M120 Control Board (CB) LEDs on page 48 Related M120 Control Board (CB) Description on page 47...
To replace the cables that connect to the ports: Replacing the Management Ethernet Cable on the M120 Routing Engine on page 206 Replacing the Console or Auxiliary Cable on the M120 Routing Engine on page 207 Replacing Alarm Relay Wires on the M120 Craft Interface on page 208...
Figure 78: M120 Routing Engine Interface Ports and Alarm Relay Contacts See Also Connecting the M120 Router to Management and Alarm Devices on page 153 Preventing Electrostatic Discharge Damage to an M120 Router on page 316 Replacing the Console or Auxiliary Cable on the M120 Routing Engine...
Figure 79: M120 Routing Engine Interface Ports and Alarm Relay Contacts See Also Connecting the M120 Router to an External Alarm-Reporting Device on page 158 Preventing Electrostatic Discharge Damage to an M120 Router on page 316 M120 Routing Engine Interface Ports and Status Indicators on page 28...
See Also M120 Alarm Relay Contacts on the Craft Interface on page 17 Connecting the M120 Router to an External Alarm-Reporting Device on page 158 Preventing Electrostatic Discharge Damage to an M120 Router on page 316 M120 Routing Engine Interface Ports and Status Indicators on page 28...
Plug the other end of the cable into the device's serial port. Figure 81: M120 Routing Engine Interface Ports and Alarm Relay Contacts Related Connecting the M120 Router to an External Alarm-Reporting Device on page 158 Documentation Preventing Electrostatic Discharge Damage to an M120 Router on page 316...
Figure 82: M120 Ethernet Cable Connectors Figure 83: M120 Routing Engine Interface Ports and Alarm Relay Contacts Related Connecting the M120 Router to Management and Alarm Devices on page 153 Documentation Preventing Electrostatic Discharge Damage to an M120 Router on page 316...
Replacing an M120 FPC on page 213 Replacing an M120 CFPC on page 219 Replacing an M120 PIC on page 223 Replacing an M120 PIC Cable on page 228 Replacing an M120 XENPAK Module on page 231 Replacing an SFP or XFP Transceiver on page 234 Replacing an M120 FPC The FPCs are hot-insertable and hot-removable.
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M120 Multiservice Edge Router Hardware Guide Press and hold the FPC online/offline button. The green LED next to the STATUS button begins to blink. Hold the button down until the LED goes out. The LEDs and online/offline button for each FPC are located directly above it on the craft interface.
If necessary, remove each installed PIC from the FPC. For information on removing a PIC, see “Removing an M120 PIC” on page 223. After you remove each PIC, immediately place it on an antistatic mat or in an electrostatic bag.
M120 Multiservice Edge Router Hardware Guide See Also M120 Flexible PIC Concentrators (FPCs) Description on page 51 Maintaining M120 FPCs and CFPCs on page 270 Troubleshooting M120 FPCs and CFPCs on page 287 Installing an M120 FPC on page 216...
Chapter 27: Replacing Line Card Components Troubleshooting M120 FPCs and CFPCs on page 287 Removing an M120 FPC on page 213 Related M120 Flexible PIC Concentrators (FPCs) Description on page 51 Documentation Troubleshooting M120 FPCs and CFPCs on page 287 Replacing an M120 CFPC The router holds up to two CFPCs, which are installed vertically in the front of the router.
Chapter 27: Replacing Line Card Components Installing an M120 CFPC on page 221 Installing an M120 CFPC To install a CFPC (see Figure 88 on page 222): Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
270. Figure 88: Installing an M120 CFPC See Also M120 Compact FPCs (CFPCs) Description on page 54 Maintaining M120 FPCs and CFPCs on page 270 Troubleshooting M120 FPCs and CFPCs on page 287 Removing an M120 CFPC on page 219...
5 seconds. The failure LED is usually red; for more information, see the M120 Multiservice Edge Router Interface Module Reference. For the PICs that install on an Type 1 FPCs, the offline button for each PIC is next to it on the FPC card carrier.
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M120 Multiservice Edge Router Hardware Guide CAUTION: Do not leave a fiber-optic transceiver uncovered except when inserting or removing cable. The safety cap keeps the port clean and prevents accidental exposure to laser light. Arrange the cable in the cable management system to prevent it from dislodging or developing stress points.
Figure 89: Removing an M120 PIC See Also M120 PICs Description on page 57 Maintaining M120 PICs and PIC Cables on page 275 Troubleshooting M120 PICs on page 288 Installing an M120 PIC on page 225 Installing an M120 PIC...
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Press and hold the PIC offline button until the status LED on the PIC faceplate indicates normal functioning, which usually takes about 5 seconds. The LED is usually green; for more information, see the M120 Multiservice Edge Router Interface Module Reference. For the PICs that install on an FPC1, the offline button for each PIC is next to it on the FPC card carrier.
To replace a PIC cable, perform the following procedures: Removing an M120 PIC Cable on page 228 Installing an M120 PIC Cable on page 229 Removing an M120 PIC Cable...
Chapter 27: Replacing Line Card Components See Also M120 PICs Description on page 57 Connecting PIC Cables to the M120 Router on page 164 Maintaining M120 PICs and PIC Cables on page 275 Installing an M120 PIC Cable on page 229...
Figure 91: Connecting Fiber-Optic Cable to an M120 PIC See Also M120 PICs Description on page 57 Connecting PIC Cables to the M120 Router on page 164 Maintaining M120 PICs and PIC Cables on page 275 Removing an M120 PIC Cable on page 228...
Related M120 PICs Description on page 57 Documentation Connecting PIC Cables to the M120 Router on page 164 Maintaining M120 PICs and PIC Cables on page 275 Replacing an M120 XENPAK Module XENPAK modules are optical transceivers that can be removed from a PIC (for more information, see “M120 PICs Description”...
Figure 92: Removing a M120 XENPAK Module See Also M120 Router Chassis Description on page 7 Overview of Troubleshooting Resources for the M120 Router on page 283 Installing an M120 XENPAK Module on page 232 Installing an M120 XENPAK Module...
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Verify that the status LEDs on the PIC faceplate indicate that the XENPAK module is functioning correctly. For more information about the PIC LEDs, see the M120 Multiservice Edge Router Interface Module Reference You can also verify PIC functioning...
Figure 93: Installing a M120 XENPAK Module See Also M120 Router Chassis Description on page 7 Overview of Troubleshooting Resources for the M120 Router on page 283 Removing an M120 XENPAK Module on page 231 Related M120 Router Chassis Description on page 7...
See Also M120 Router Chassis Description on page 7 Overview of Troubleshooting Resources for the M120 Router on page 283 Installing an SFP or XFP Transceiver on page 236 Installing an SFP or XFP Transceiver To install an SFP or XFP (see “Removing SFPs or XFPs”...
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Verify that the status LEDs on the PIC faceplate indicate that the SFP or XFP is functioning correctly. For more information about the PIC LEDs, see the PIC description for the PIC in the M120 Multiservice Edge Router Interface Module Reference. You can also verify PIC functioning by issuing the...
Replacing Power System Components Replacing an M120 AC Power Supply on page 239 Replacing an M120 AC Power Supply Cord on page 244 Replacing an M120 DC Power Supply on page 245 Replacing an M120 DC Power Supply Cable on page 251...
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M120 Multiservice Edge Router Hardware Guide NOTE: After powering off a power supply, wait at least 60 seconds before turning it back on. To remove an AC power supply (see Figure 95 on page 241): Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
Chapter 28: Replacing Power System Components Figure 95: Removing an M120 AC Power Supply Figure 96: Rear of the M120 Power Supply Showing Midplane Connector See Also M120 AC Power Supply Description on page 72 Maintaining the M120 Power Supplies on page 277...
M120 Multiservice Edge Router Hardware Guide Installing an M120 AC Power Supply To install an AC power supply (see Figure 97 on page 243): Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
M120 AC Power Supply Description on page 72 Documentation Maintaining the M120 Power Supplies on page 277 Electrical Specifications for the M120 AC Power Supply on page 95 Replacing an M120 AC Power Supply Cord To replace the power cord for an AC power supply:...
M120 AC Power Supply Description on page 72 Documentation Maintaining the M120 Power Supplies on page 277 Electrical Specifications for the M120 AC Power Supply on page 95 Replacing an M120 DC Power Supply In the DC power configuration, the router contains two DC power supplies (see...
246). (Use a 3/8-in. nut driver or pliers.) Figure 98: Disconnecting Power Cables from the M120 DC Power Supply Remove the cable lugs from the terminal studs. Loosen the captive screws on the cable restraints on the lower edge of the power supply faceplate.
Figure 99: Removing an M120 DC Power Supply See Also M120 DC Power Supply Description on page 72 Electrical Specifications for the M120 DC Power Supply on page 100 Maintaining the M120 Power Supplies on page 277 Installing an M120 DC Power Supply on page 248...
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NOTE: For information about connecting to DC power sources, see “M120 DC Power, Connection, and Cable Specifications” on page Secure the power cable lugs to the terminal studs, first with the flat washer, then with the nut. Apply between 12 lb-in. (1.4 Nm) and 15 lb-in. (1.7 Nm) of torque to each nut...
Connect each DC power cable to the appropriate external DC power source. NOTE: For information about connecting to external DC power sources, “M120 DC Power, Connection, and Cable Specifications” on page Switch the power switch on the power supply faceplate to the on position ( ). Verify that the status LED on the power supply faceplate blinks, then lights steadily approximately one minute after you switch on the power switch.
Chapter 28: Replacing Power System Components Figure 101: Connecting Power Cables to the M120 DC Power Supply See Also M120 DC Power Supply Description on page 72 Electrical Specifications for the M120 DC Power Supply on page 100 Maintaining the M120 Power Supplies on page 277...
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M120 Multiservice Edge Router Hardware Guide CAUTION: You must ensure that power connections maintain the proper polarity. The power source cables might be labeled to indicate (–) their polarity. There is no standard color coding for DC power cables. The...
CHAPTER 29 Replacing Switch Fabric Components Replacing an M120 FEB on page 255 Replacing an M120 FEB To replace a FEB, perform the following procedures: Removing an M120 FEB on page 255 Installing an M120 FEB on page 256 Removing an M120 FEB Six FEBs are installed in the router.
Figure 102: Removing an M120 FEB See Also M120 Forwarding Engine Boards (FEBs) Description on page 75 M120 Forwarding Engine Boards (FEBs) LEDs on page 77 Maintaining the M120 FEBs on page 278 Troubleshooting M120 FEBs on page 289...
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M120 Multiservice Edge Router Hardware Guide See Also M120 Forwarding Engine Boards (FEBs) Description on page 75 M120 Forwarding Engine Boards (FEBs) LEDs on page 77 Maintaining the M120 FEBs on page 278 Troubleshooting M120 FEBs on page 289 Removing an M120 FEB on page 255...
CHAPTER 31 Maintaining Components and Cables Tools and Parts Required to Maintain M120 Hardware Components on page 263 Maintaining the M120 Air Filter on page 263 Maintaining the M120 Fan Trays on page 264 Maintaining the M120 Host Subsystem on page 266...
Related M120 Cooling System Description on page 19 Documentation Replacing an M120 Air Filter on page 187 Troubleshooting the M120 Cooling System on page 286 Maintaining the M120 Fan Trays Purpose For optimum cooling, verify the condition of the fans.
M120 Multiservice Edge Router Hardware Guide Maintaining the M120 Host Subsystem Purpose For optimum router performance, verify the condition of the host subsystem. The host subsystem comprises a Routing Engine installed directly into a CB. Action On a regular basis: Check the LEDs on the craft interface to view information about the status of the Routing Engines.
M120 Router Chassis Description on page 7 Documentation M120 Host Subsystem Description on page 21 Taking the M120 Host Subsystem Offline on page 267 Replacing an M120 CB on page 202 Replacing an M120 Routing Engine on page 195 Taking the M120 Host Subsystem Offline The host subsystem is taken offline and brought online as a unit.
M120 Multiservice Edge Router Hardware Guide Table 69 on page 268 explains the effect of taking the host subsystem offline. Table 69: Effect of Taking the M120 Host Subsystem Offline Type of Host Subsystem Effect of taking the Host Subsystem Offline Nonredundant host The router shuts down.
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NOTE: The first supported release for graceful Routing Engine switchover and nonstop active routing on the M120 router is Junos OS Release 8.2 and Junos OS Release 9.0, respectively. Graceful restart software requirements are dependent on the routing protocols configured on the router. For the minimum software requirements for graceful restart, see the Junos OS High Availability Library for Routing Devices.
Check the LEDs on the craft interface directly above each FPC slot. The green LED labeled lights steadily when an FPC is functioning normally. For more information, “FPC LEDs on the M120 Craft Interface” on page Issue the CLI show chassis fpc command to check the status of installed FPCs.
Chapter 31: Maintaining Components and Cables Related M120 Flexible PIC Concentrators (FPCs) Description on page 51 Documentation M120 Compact FPCs (CFPCs) Description on page 54 Replacing an M120 FPC on page 213 Replacing an M120 CFPC on page 219 Troubleshooting M120 FPCs and CFPCs on page 287 Storing an M120 FPC Many components on the FPC are fragile.
You can rest the faceplate of the FPC against your body as you carry it. Figure 105: Holding an M120 FPC Horizontally As you carry the FPC, do not bump it against anything. FPC components are fragile.
Some PICs have additional LEDs, often one per port. The meaning of the LED states differs for various PICs. For more information, see the M120 Multiservice Edge Router Interface Module Reference. If the FPC that houses the PIC detects a PIC failure, the FPC generates an alarm message to be sent to the Routing Engine.
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M120 Multiservice Edge Router Hardware Guide Issue the CLI command. The PIC slots in an FPC are show chassis fpc pic-status numbered from through , top to bottom: user@host> show chassis fpc pic-status Slot 2 Online M120 FPC Type 1...
Related M120 PICs Description on page 57 Documentation Replacing an M120 PIC on page 223 Replacing an M120 PIC Cable on page 228 Troubleshooting M120 PICs on page 288 Maintaining the M120 Power Supplies Purpose For optimum router performance, verify the condition of the power supplies.
M120 Multiservice Edge Router Hardware Guide router. To review grounding and site wiring requirements for the router, see“DC Power Electrical Safety Guidelines for the M120 Router” on page 347 “Site Electrical Wiring Guidelines for Juniper Networks Devices” on page 349.
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For more information about FEB redundancy groups and FPC-to-FEB connectivity, see the Junos OS Administration Library. Related M120 Forwarding Engine Boards (FEBs) Description on page 75 Documentation Replacing an M120 FEB on page 255 Troubleshooting M120 FEBs on page 289...
Troubleshooting the M120 Power System on page 288 Troubleshooting M120 FEBs on page 289 Troubleshooting an M120 FEB When a Chassis Alarm Is Lit Upon Initial Startup or Removal on page 291 Overview of Troubleshooting Resources for the M120 Router...
Interface alarms—Indicate a problem with a specific network interface. Troubleshooting Using the Juniper Networks Technical Assistance Center If you need assistance during troubleshooting, you can contact the Juniper Networks Technical Assistance Center (JTAC) by using the Web or by telephone. See “Contacting...
LEDs, green indicates and red indicates FAIL The host subsystem LEDs are located in the middle of the craft interface, and are labeled “Host Subsystem LEDs on the M120 Craft Interface” on page FEB LEDs—Two LEDs (one ACTIVE and one STATUS ) indicate the status of each FEB.
. For information user@host> show chassis alarms about alarms, see “M120 Alarm LEDs and Alarm Cutoff/Lamp Test Button” on page Use the CLI to check the status of the fans: user@host> show chassis environment . If...
For further description of the output from the commands, see the CLI Explorer Related M120 Flexible PIC Concentrators (FPCs) Description on page 51 Documentation M120 Compact FPCs (CFPCs) Description on page 54 Maintaining M120 FPCs and CFPCs on page 270...
CLI Explorer Related M120 PICs Description on page 57 Documentation Maintaining M120 PICs and PIC Cables on page 275 Replacing an M120 PIC on page 223 Troubleshooting the M120 Power System Problem Description: The power supply is not functioning properly.
Juniper Networks, Inc.” on page 305. If you cannot determine the cause of the problem or need additional assistance, see “Troubleshooting Using the Juniper Networks Technical Assistance Center” on page 284. Related M120 AC Power Supply Description on page 72...
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M120 Multiservice Edge Router Hardware Guide Solution To troubleshoot the FEBs, follow these guidelines: To troubleshoot the FEBs: Check the FEB LEDs on the craft interface. Make sure the FEB is properly seated in the midplane. Check that each ejector handle is fully engaged and flush with the FEB bulkhead.
Documentation Maintaining the M120 FEBs on page 278 Replacing an M120 FEB on page 255 Troubleshooting an M120 FEB When a Chassis Alarm Is Lit Upon Initial Startup or Removal Problem Description: An FPC is mapped to an empty FEB slot, the red alarm LED on the chassis...
Contacting Customer Support on page 295 Contacting Customer Support You can contact Juniper Networks Technical Assistance Center (JTAC) 24 hours a day, 7 days a week in one of the following ways: On the Web, using the Case Manager link at: https://www.juniper.net/support/...
CHAPTER 34 Locating Component Serial Numbers Displaying M120 Router Components and Serial Numbers on page 297 M120 Chassis Serial Number Label on page 298 M120 Craft Interface Serial Number Label on page 299 M120 Routing Engine Serial Number Label on page 299...
Related M120 PIC Serial Number Label on page 302 Documentation M120 Routing Engine Serial Number Label on page 299 Contacting Customer Support on page 295 M120 Chassis Serial Number Label The chassis serial number is located on the side of the chassis (see Figure 110 on page 299).
M120 Craft Interface Description on page 11 Documentation M120 Component LEDs on the Craft Interface on page 14 M120 Routing Engine Serial Number Label The serial number label is located on the right side of the top of the Routing Engine (see Figure 112 on page 300).
M120 Multiservice Edge Router Hardware Guide Figure 112: M120 Routing Engine Serial Number Label Related M120 Routing Engine Description on page 22 Documentation M120 Routing Engine LEDs on page 25 M120 CB Serial Number Label The serial number is located on the right side of the top of the CB (see Figure 113 on page 300).
301). On an FPC2, the serial number label is located near the top PIC slot. Figure 114: M120 FPC Serial Number Label Related M120 Flexible PIC Concentrators (FPCs) Description on page 51 Documentation Troubleshooting M120 FPCs and CFPCs on page 287 M120 CFPC Serial Number Label...
M120 Multiservice Edge Router Hardware Guide Troubleshooting M120 FPCs and CFPCs on page 287 M120 PIC Serial Number Label The serial number label is located on the right side of the PIC (see Figure 116 on page 302), when the PIC is vertically oriented (as it would be installed in the router). The exact location may be slightly different on different PICs, depending on the placement of components on the PIC board.
Chapter 34: Locating Component Serial Numbers Figure 117: M120 AC Power Supply Serial Number Label Figure 118: M120 DC Power Supply Serial Number Label Related M120 Power Supplies Description on page 71 Documentation Troubleshooting the M120 Power System on page 288...
Guidelines for Packing M120 Components for Shipment on page 308 Returning a Hardware Component to Juniper Networks, Inc. In the event of a hardware failure, please contact Juniper Networks, Inc. to obtain a Return Material Authorization (RMA) number. This number is used to track the returned material at the factory and to return repaired or new components to the customer as needed.
The support representative validates your request and issues an RMA number for return of the component. Pack the component for shipment. Tools and Parts Required to Remove Components from an M120 Router To remove components from the router or the router from a rack, you need the following tools and parts: 2.5-mm flat-blade (–) screwdriver, for detaching alarm relay terminal block...
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“Replacing an M120 DC Power Supply Cable” on page 251. Remove the cables that connect to all external devices. For instructions, see“Replacing Connections to M120 Routing Engine Interface Ports” on page 206 “Removing an M120 PIC Cable” on page 228.
Write the RMA number on the exterior of the box to ensure proper tracking. Related Tools and Parts Required to Remove Components from an M120 Router on page 306 Documentation Displaying M120 Router Components and Serial Numbers on page 297...
General Safety Guidelines for Juniper Networks Devices on page 313 General Safety Warnings for Juniper Networks Devices on page 314 Preventing Electrostatic Discharge Damage to an M120 Router on page 316 Definition of Safety Warning Levels The documentation uses the following levels of safety warnings:...
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Documentation Installation Safety Warnings for Juniper Networks Devices on page 322 Maintenance and Operational Safety Warnings for Juniper Networks Devices on page 333 General Electrical Safety Warnings for Juniper Networks Devices on page 339 DC Power Electrical Safety Warnings for Juniper Networks Devices on page 344...
M120 Multiservice Edge Router Hardware Guide General Safety Warnings for Juniper Networks Devices Qualified Personnel Warning on page 314 Restricted-Access Area Warning on page 314 Qualified Personnel Warning WARNING: Only trained and qualified personnel should install or replace the hardware equipment.
Installation Safety Warnings for Juniper Networks Devices on page 322 Documentation Maintenance and Operational Safety Warnings for Juniper Networks Devices on page 333 General Electrical Safety Warnings for Juniper Networks Devices on page 339 DC Power Electrical Safety Warnings for Juniper Networks Devices on page 344 Preventing Electrostatic Discharge Damage to an M120 Router Many router hardware components are sensitive to damage from static electricity.
Establish procedures for protecting people in a fire emergency, provide safety training, and properly provision fire-control equipment and fire extinguishers. In addition, establish procedures to protect your equipment in a fire emergency. Juniper Networks products must be installed in an environment suitable for electronic equipment.
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To keep warranties effective, do not use a dry chemical fire extinguisher to control a fire at or near a Juniper Networks device. If a dry chemical fire extinguisher is used, the unit is no longer eligible for coverage under a service agreement.
M120 Multiservice Edge Router Hardware Guide Installation Safety Warnings for Juniper Networks Devices Observe the following warnings before and during hardware equipment installation: Intrabuilding Ports Warning on page 322 Installation Instructions Warning on page 322 Rack-Mounting Requirements and Warnings on page 323...
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M120 Multiservice Edge Router Hardware Guide Router on asennettava telineeseen, joka on kiinnitetty rakennukseen. Jos telineessä ei ole muita laitteita, aseta laite telineen alaosaan. Jos laite asetetaan osaksi täytettyyn telineeseen, aloita kuormittaminen sen alaosasta kaikkein raskaimmalla esineellä ja siirry sitten sen yläosaan.
M120 Multiservice Edge Router Hardware Guide El router debe instalarse en un bastidor fijado a la estructura del edificio. Colocar el equipo en la parte inferior del bastidor, cuando sea la única unidad en el mismo. Cuando este equipo se vaya a instalar en un bastidor parcialmente ocupado, comenzar la instalación desde la parte inferior hacia la superior colocando...
CHAPTER 39 Laser and LED Safety Guidelines and Warnings General Laser Safety Guidelines for the M120 Router on page 329 M120 Laser and LED Safety Warnings on page 329 General Laser Safety Guidelines for the M120 Router Physical Interface Cards (PICs) with single-mode optical interfaces are equipped with laser transmitters, which are considered a Class 1 Laser Product by the U.S.
M120 Multiservice Edge Router Hardware Guide Class 1 Laser Product Warning WARNING: Class 1 laser product. Waarschuwing Klasse-1 laser produkt. Varoitus Luokan 1 lasertuote. Attention Produit laser de classe I. Warnung Laserprodukt der Klasse 1. Avvertenza Prodotto laser di Classe 1.
CHAPTER 40 Maintenance and Operational Safety Guidelines and Warnings Maintenance and Operational Safety Warnings for Juniper Networks Devices on page 333 Maintenance and Operational Safety Warnings for Juniper Networks Devices As you maintain the hardware equipment, observe the following warnings:...
M120 Multiservice Edge Router Hardware Guide Warnung Bei Einsetzen einer falschen Batterie besteht Explosionsgefahr. Ersetzen Sie die Batterie nur durch den gleichen oder vom Hersteller empfohlenen Batterietyp. Entsorgen Sie die benutzten Batterien nach den Anweisungen des Herstellers. Avvertenza Pericolo di esplosione se la batteria non è installata correttamente.
M120 Multiservice Edge Router Hardware Guide Attention Ne pas travailler sur le système ni brancher ou débrancher les câbles pendant un orage. Warnung Arbeiten Sie nicht am System und schließen Sie keine Kabel an bzw. trennen Sie keine ab, wenn es gewittert.
In Case of an Electrical Accident on page 339 General Electrical Safety Warnings for Juniper Networks Devices on page 339 AC Power Electrical Safety Guidelines for the M120 Router on page 343 Japanese AC Power Cord Warning for M Series and MX Series Routers on page 344...
M120 Multiservice Edge Router Hardware Guide Grounded Equipment Warning WARNING: The network device is intended to be grounded. Ensure that the network device is connected to earth ground during normal use. Waarschuwing Deze apparatuur hoort geaard te worden Zorg dat de host-computer tijdens normaal gebruik met aarde is verbonden.
M120 Multiservice Edge Router Hardware Guide Warnung Diese Einheit verfügt über mehr als einen Stromanschluß; um Strom gänzlich von der Einheit fernzuhalten, müssen alle Stromzufuhren abgetrennt sein. Avvertenza Questa unità ha più di una connessione per alimentatore elettrico; tutte le connessioni devono essere completamente rimosse per togliere l'elettricità...
överspänningsskyddet. Related DC Power Electrical Safety Warnings for Juniper Networks Devices on page 344 Documentation AC Power Electrical Safety Guidelines for the M120 Router The following electrical safety guidelines apply to AC-powered routers: AC-powered routers are shipped with a three-wire electrical cord with a grounding-type plug that fits only a grounding-type power outlet.
M120 Multiservice Edge Router Hardware Guide DC Power Electrical Safety Guidelines for the M120 Router on page 347 Japanese AC Power Cord Warning for M Series and MX Series Routers WARNING: Translation from Japanese: The attached power cable is only for this product.
M120 Multiservice Edge Router Hardware Guide Aviso Antes de executar um dos seguintes procedimentos, certifique-se que desligou a fonte de alimentação de energia do circuito de corrente contínua. Para se assegurar que toda a corrente foi DESLIGADA, localize o disjuntor no painel que serve o circuito de corrente contínua e coloque-o na posição OFF...
General Safety Warnings for Juniper Networks Devices on page 314 Documentation General Electrical Safety Warnings for Juniper Networks Devices on page 339 DC Power Electrical Safety Guidelines for the M120 Router The following electrical safety guidelines apply to a DC-powered router:...
Chapter 41: Electrical Safety Guidelines and Warnings Site Electrical Wiring Guidelines for Juniper Networks Devices Distance Limitations for Signaling on page 349 Radio Frequency Interference on page 349 Electromagnetic Compatibility on page 349 Distance Limitations for Signaling Improperly installed wires can emit radio interference. In addition, the potential for damage from lightning strikes increases if wires exceed recommended distances or if wires pass between buildings.
Compliance Statements for Environmental Requirements on page 354 Compliance Statements for NEBS for the M120 Router on page 354 Compliance Statements for Acoustic Noise for the M120 Router on page 355 Agency Approvals for M120 Routers The router complies with the following standards: Safety CAN/CSA-22.2 No.
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The battery return connection is to be treated as a Common DC return (i.e. DC-C), as defined in GR-1089-CORE. Related Compliance Statements for EMC Requirements for Juniper Networks Devices (United Documentation States) on page 354 Compliance Statements for EMC Requirements for Juniper Networks Devices (Japan)
Chapter 42: Agency Approvals and Compliance Statements Compliance Statements for EMC Requirements for the M120 Router (European Community) This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.
M120 Multiservice Edge Router Hardware Guide Compliance Statements for EMC Requirements for Juniper Networks Devices (Japan) Translation from Japanese—This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.
Related Agency Approvals for M120 Routers on page 351 Documentation Compliance Statements for NEBS for the M120 Router on page 354 Compliance Statements for EMC Requirements for Juniper Networks Devices (United States) on page 354 Compliance Statements for EMC Requirements for Juniper Networks Devices (Japan)
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