Summary of Contents for Lucent Technologies GRF 1600
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® 400/1600 Getting Started 1.4. Update 2 Part Number: 7820-2035-001 For software version 1.4.20 and later September, 1999...
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GRF is a trademark of Lucent Technologies. Other trademarks and trade names mentioned in this publication belong to their respective owners. Limited Warranty Lucent Technologies provides a limited warranty to this product. See Appendix B, "Limited Warranty," in the GRF 400/1600 Getting Started manual for more information.
Customer Service Customer Service provides a variety of options for obtaining information about Lucent products and services, software upgrades, and technical assistance. Finding information and software on the Internet Visit the Web site at http://www.ascend.com for technical information, product information, and descriptions of available services. Visit the FTP site at ftp.ascend.com for software upgrades, release notes, and addenda to this manual.
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Email from Europe, the Middle East, or Asia—EMEAsupport@ascend.com • Fax—(510) 814-2312 • Customer Support BBS (by modem)—(510) 814-2302 Write to Lucent at the following address: Attn: Customer Service Lucent Technologies Inc. 1701 Harbor Bay Parkway Alameda, CA 94502-3002 GRF 400/1600 Getting Started - 1.4 Update 2...
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- A fully loaded, redundant-power GRF 400 weighs 38.5 lbs (17.3 kg). - A fully loaded, single-power GRF 400 weighs 32.5 lbs (14.6 kg). - A four card, redundant-power GRF 1600 weighs 147 lbs (66.2 kg). - A four card, single-power GRF 1600 weighs 127 lbs (57.2 kg).
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12 Install DC-equipped GRF 400 and 1600 routers only in restricted access areas in accordance with Articles 110-16, 110-17, and 110-18 of the National Electrical Code, ANSI/NFPA 70. 13 Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the power cord.
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Wichtige Sicherheitshinweise Die folgenden Sicherheitshinweise gelten für die GRF-Oberfräsenmodelle GRF-4AC, GRF-4-DC, GRF-16-AC und GRF-16-DC, außer wenn anderweitig angegeben: Lesen und befolgen Sie alle am Produkt angebrachten und im Handbuch enthaltenen Warnhinweise und Anleitungen. Versuchen Sie nicht, dieses Gerät selbst zu warten bzw. die Abdeckung zu öffnen oder Bauteile zu entfernen.
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11 Bei Modellen mit Gleichstromeingängen muß ein Erdungsdraht entweder an der Klemmleiste oder an einer Gehäuseschraube angeschlossen werden. Hierbei handelt es sich um eine Sicherheitseinrichtung. Die Erdung des Gerätes ist eine wichtige Voraussetzung für den sicheren Betrieb. 12 Die gleichstromausgerüsteten Oberfräsenmodelle GRF-400- und GRF-1600-Oberfräse dürfen nur in Bereichen mit beschränktem Zugang, unter Berücksichtigung der anwendbaren Bestimmungen für Elektroinstallationen sowie der Standards ANSI/NFPA 70 installiert werden.
AC power cord ...................... 2-3 Site-supplied components ....................2-3 Components you can add ....................... 2-3 Upgrading system memory ....................2-5 Overview of the GRF 1600 base unit ................... 2-6 Media cards........................2-8 Chassis fans ....................... 2-8 GRF 400/1600 Getting Started - 1.4 Update 2...
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Contents Control board ....................2-9 Switch board ......................... 2-10 Switch control......................2-10 Battery........................... 2-10 Backplane ....................... 2-10 Communications bus ..................... 2-10 System memory ..................2-11 Power supply options ..................2-12 Power supply failure notification ................2-12 Description of the AC power supplies ...............
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Redundant power supplies .................... 3-22 Power supply failure notification ................3-22 Interpreting GRF 1600 control board LEDs ..............3-23 Applying AC power to the GRF 1600 ................3-24 Plug-in steps........................3-24 Installing a power cord locking clamp ..............3-24 Clamp procedure......................3-25 A note about redundant AC supplies ..............
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Contents The de0 interface ..................4-4 grifconfig and netstart de0 addresses must match ..........4-4 Attaching the maintenance interface de0 ................4-5 Ethernet connection to control board ..............4-5 Using telnet ........................4-5 Administrative log on ......................4-6 CLI and UNIX passwords ................
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Contents Blank face plates ......................5-7 Cable specifications ......................5-7 Differences in media card loading ..............5-8 Reset GRF when all cables are attached ..............5-8 ATM OC-3c (ATM/Q) media card ..................5-9 LEDs ........................5-9 Laser safety ......................5-10 ATM OC-12c media card ....................
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VCCI Class 1 notice......................C-3 Non-telecommunication port ..................C-4 EC declaration: GRF-4-AC.................... C-5 EC declaration: GRF-4-DC.................... C-6 Appendix D GRF 1600 Agency Notices ............. D-1 GRF 1600 agency regulatory notices..................D-2 Agency status ......................... D-2 Canadian notice......................D-2 European Union notice ....................D-2 Federal Communications Commission notice ...............
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Top view of GRF 1600 chassis with slots numbered ........2-8 Figure 2-5 Memory components and options on the control board ......2-11 Figure 2-6 Front of GRF 1600 AC power supply drawer and locking tab....2-13 Figure 2-7 Warning label required for redundant supplies .......... 2-15 Figure 2-8 Front panel of GRF 1600 DC power supply..........
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Figures Figure 5-7 FDDI/Q media card faceplate and LEDs............ 5-15 Figure 5-8 FDDI optic cable connector and keys............5-17 Figure 5-9 Types of FDDI connector keys..............5-17 Figure 5-10 DAS and SAS connection options.............. 5-18 Figure 5-11 FDDI media cards used as single and dual attachment nodes ....5-18 Figure 5-12 Single attach FDDI interface using master / slave keys ......
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Tables Table 3-1 Descriptions of GRF 400 control board LEDs ..........3-8 Table 3-2 Descriptions of GRF 1600 control board LEDs ......... 3-23 Table 5-1 Media card cable specifications ..............5-7 Table 5-2 ATM OC-3c LEDs..................5-9 Table 5-3 ATM OC-3c single mode laser information ..........5-10 Table 5-4 ATM OC-12c LEDs..................
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Tables xviii October, 1998 GRF 400/1600 Getting Started - 1.4 Update 2...
Chapter 1, “Getting Acquainted with the GRF 400,” describes the GRF 400 system components and operating environment. • Chapter 2, “Getting Acquainted with the GRF 1600,” describes the GRF 1600 system components and operating environment. • Chapter 3, “Rack Mount and Power On Procedures,” describes the rack mounting procedure for each GRF model, and provides power on procedures for AC and DC power supplies.
About This Guide What you should know What you should know Configuring and monitoring the GRF requires that a Network Administrator have experience with and an understanding of UNIX systems, and the ability to navigate in a UNIX environment. Knowledge of UNIX, its tools, utilities, and editors is useful, as is experience with administering and maintaining a UNIX system.
About This Guide Documentation conventions Documentation conventions Ascend uses standard documentation conventions, which are as follows: Convention Meaning Monospace text Represents text that appears on your computer’s screen, or that could appear on your computer’s screen. Boldface t Represents characters that you enter exactly as shown (unless the characters are also in italics—see Italics, below).
About This Guide Documentation set Documentation set The GRF 1.4 Update 2 documentation set consists of the following manuals: • GRF 400/1600 Getting Started 1.4 Update 2 (this manual) • GRF Configuration and Management - 1.4 Update 2 • GRF Reference Guide - 1.4 Update 2 •...
Getting Acquainted with the GRF 400 This chapter describes the components in a GRF 400 router that you need to be familiar with as you set up and install the equipment. At the end of this chapter is a one-page preview of the tasks to set up and install the GRF. Please read through the list, the tasks are described in subsequent chapters.
Getting Acquainted with the GRF 400 What is the GRF 400? What is the GRF 400? The GRF 400 is a high-performance IP switch designed for high-volume, large-scale public and private backbone applications. It has these main features: • Performs Layer-3 switching across 4 gigabits/second aggregate bandwidth •...
Getting Acquainted with the GRF 400 Site-supplied components Site-supplied components To boot the GRF 400, you must attach a VT100-compatible terminal directly to the control board, and you must supply: • a standard RS-232 null modem cable and the terminal Optionally, if you later want to directly connect the GRF to a site LAN, you must supply: •...
Getting Acquainted with the GRF 400 Upgrading system memory Upgrading system memory Figure 1-1 shows the area of system memory (control board RAM) that can be expanded to meet site requirements. Memory upgrades are made in 128MB increments up to 512MB. 128MB RAM expandable to -->...
Getting Acquainted with the GRF 400 Overview of the GRF 400 base unit Overview of the GRF 400 base unit Figure 1-2 shows the GRF 400 base unit from the front. The rack-mountable chassis is 5.25” high and 19” wide. When you install the GRF, you must provide six to ten inches of side clearance for ambient air intake and heated air exhaust.
Getting Acquainted with the GRF 400 Overview of the GRF 400 base unit Control board GRF 400 control board hardware runs the router management software (RMS). RMS is the communications and control software for the media cards. Other control board components are the system RAM, internal flash memory, switch hardware, Ethernet connector, and PCMCIA device slots.
Getting Acquainted with the GRF 400 Overview of the GRF 400 base unit System memory Figure 1-5 illustrates the RAM and flash memory components on the GRF control board: System RAM 128MB ---> 256 MB ---> 384 MB ---> 512 MB Internal flash device 85MB...
Getting Acquainted with the GRF 400 Overview of the GRF 400 base unit Fans Three intake fans push air across the media cards, control board, and power supplies. Warmed air exhausts out the side vents next to the power supplies. If the unit is installed in a rack, the sides of the GRF chassis should not be adjacent to a device in the next rack.
Getting Acquainted with the GRF 400 Overview of the GRF 400 base unit par le constructeur. Mettre au rebut les batteries usagées conformément aux instructions du fabricant. Power supplies The GRF 400 can use either AC or DC (negative 48VDC) power supplies. GRF systems are shipped with the power supply installed.
Getting Acquainted with the GRF 400 Description of the AC power supply Description of the AC power supply The GRF 400 400W AC power supply provides +5V to all media cards, control board, and backplane. Remember that the GRF 400 chassis does not have a power on/off switch. When you plug the AC power supply cord into a live outlet, the GRF powers on and, since the software is already loaded, immediately begins to boot.
Getting Acquainted with the GRF 400 Description of the AC power supply • units might be swapped at sites having multiple GRF 400 units with different power supplies. If you swap power supplies, remember you cannot mix models in the same GRF chassis. Contact your Lucent sales representative to order the appropriate power supply units.
Getting Acquainted with the GRF 400 Description of the 48V DC power supply Description of the 48V DC power supply The GRF 400 can be ordered with one or a redundant pair of negative 48V DC power supply units. The DC unit is available only from Lucent. Attaching DC supply wiring to the DC power supplies is described in Chapter 3.
Getting Acquainted with the GRF 400 Installation preview Installation preview Now that you are familiar with the GRF 400, this page gives you a preview of the tasks you will do to install the GRF, and what the other chapters in this Getting Started manual cover: Rack mount and ground the GRF chassis.
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Getting Acquainted with the GRF 400 Installation preview 1-14October, 1998 GRF 400/1600 Getting Started - 1.4 Update 2...
Side rails are recommended to be installed in the rack unit before attempting to insert a GRF 1600. Side rails will help to support the heavy unit as the team inserts the chassis and fastens it to the rack.
• Software is pre-installed at the factory. AC power cord For AC systems, make sure the shipping box contains an AC power cord. If your GRF 1600 has a redundant AC power supply, you should have two power cords. •...
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Lucent offers only the 85 MB Flash directly (GRF-AC-FLASH). Customers may purchase the other devices through an external source. • Lucent certifies the following PCMCIA modem for use in a GRF 1600: – US Robotics/MegaHertz 56K PC Card Modem, model xj5560 2-4October, 1998 GRF 400/1600 Getting Started - 1.4 Update 2...
Getting Acquainted with the GRF 1600 Upgrading system memory Upgrading system memory Figure 2-1 shows the area of system memory (control board RAM) that can be expanded to meet site requirements. Memory upgrades are made in 128MB increments up to 512MB.
Overview of the GRF 1600 base unit Figure 2-2 shows the GRF 1600 base unit from the front of the cabinet. All cables and power cords attach at the rear panel. The GRF 1600 chassis is organized into three sections.
Overview of the GRF 1600 base unit The rear panel of the GRF 1600 chassis is shown in Figure 2-3. At the top is a fan tray that houses a pair of motorized impeller fans, the tray is field-replaceable as a single unit.
“FAN” LED lights. You can replace the fan tray on site, contact Lucent to order a replacement. The amount of time the GRF 1600 can operate with a failed fan depends upon the number of installed media cards and the ambient air temperature. The temperature sensor on the control board shuts the GRF down if the operating temperature is exceeded.
Overview of the GRF 1600 base unit Control board GRF 1600 control board hardware runs the router management software (RMS). RMS is the communications and control software for the media cards. Other control board components are the system RAM, internal flash memory, maintenance Ethernet connector, and PCMCIA device slots.
Backplane The GRF 1600 backplane spans the width of the chassis and is fixed in place. The backplane is not a field replaceable unit. The backplane supplies power to the media cards and control board. The control board and media cards exchange configuration and status information through the 80 megabit/second...
(g0001) Figure 2-5. Memory components and options on the control board RAM The GRF 1600 is equipped with a minimum of 128MB internal RAM, 32MB of which are permanently reserved for the file system, including logs and configuration files. The remaining 96MB are used by the operating system and user applications such as GateD.
file will also contain related messages. The amber PS1 or PS2 LED on the gr.console GRF 1600 control board will come on to indicate a power supply failure. If you do not already have a replacement unit, order one from Lucent.
Description of the AC power supplies Description of the AC power supplies The GRF 1600 1100W AC power supply provides +48V to the fans and +5.0V to all media cards, control board, switch board, and backplane. Remember that the GRF 1600 chassis does not have a power on/off switch.
Getting Acquainted with the GRF 1600 Description of the AC power supplies AC drawer locking tab The AC power supply drawers have a locking mechanisn that prevents anyone from removing a drawer while the unit has a power cord plugged in. Refer to the diagram below.
/var/log/grconsole.log When redundant power supplies are installed in a GRF 1600 chassis, you must keep at least two media cards inserted to meet the minimum load requirement. Minimum load can be problematical when power supplies are operating in the redundant or current share mode, particularly on high current output supplies.
Description of the 48VDC power supplies Description of the 48VDC power supplies The GRF 1600 1100W DC power supply provides +48V to the fans and +5.0V to all media cards, and the control board, switch board, and backplane. Directions for attaching DC input wiring to the DC power supply are in chapter 3.
/var/log/grconsole.log When redundant power supplies are installed in a GRF 1600 chassis, you must keep at least two media cards inserted to meet the minimum load requirement. Minimum load can be problematical when power supplies are operating in the redundant or current share mode, particularly on high current output supplies.
Installation preview Installation preview Now that you are familiar with the GRF 1600, this page gives you a preview of the tasks you will do to install the GRF, and what the other chapters in this Getting Started manual cover: Rack mount and ground the GRF chassis.
Rack Mount and Power On Procedures Rack mounting the GRF 400 Rack mounting the GRF 400 Before you begin installing the GRF 400, make sure you have these items: – A VT-100 terminal to attach to the control board RS-232 port –...
Rack Mount and Power On Procedures Rack mounting the GRF 400 Rack-mounting requirements If you are rack-mounting the GRF 400 base unit: – Always stack the rack from the bottom up to ensure a stable and safe rack. – The installation of GRF 400 and other units within the rack should not reduce the air flow within the rack.
flex and must be carefully supported, especially when inserting the media card into a chassis. Warning: The backplanes of both the GRF 400 and the GRF 1600 contain hazardous energy levels. When replacing a media card, remove only one card at a time. Removing more than one card will expose the operator to this energy hazard.
Wear a grounded, conductive wrist strap when removing, replacing, and/or handling individual electronic components. Make sure the metallic elements in the band directly touch your exposed skin. GRF 400 GRF 1600 Wrist strap grounding sites Insertion procedure When you are properly grounded, remove the media card from its anti-static container.
As shown in Figure 3-10, the control board provides multiple connection sites. Use a null modem cable (console cross-over cable) to attach the terminal to the RS-232 serial connector site. (A GRF 400 control board is shown here, the GRF 1600 serial port is the same.) VT-100 terminal settings...
Rack Mount and Power On Procedures Powering on the GRF 400 Powering on the GRF 400 As described earlier in this chapter, the initial start-up of the GRF requires a directly-attached terminal for logging in as . This terminal should be connected before you power on the root GRF so you can monitor the start up and boot messages that begin immediately.
Rack Mount and Power On Procedures Interpreting GRF 400 control board LEDs Interpreting GRF 400 control board LEDs Watch the control board LEDs as the GRF powers up. Figure 3-4 shows the LEDs on the control board face plate. Table 3-1 has a description of each LED including start-up activity. Figure 3-4.
Rack Mount and Power On Procedures Applying AC power to the GRF 400 Applying AC power to the GRF 400 The GRF 400 does not have an on/off switch. Therefore, you must first plug the power cord into the AC power supply BEFORE you plug the cord into a wall or other receptacle. Caution: The power supplies contain hazardous voltages and energy levels.
Rack Mount and Power On Procedures Applying AC power to the GRF 400 Labeling a redundant AC power supply The warning label shown in Figure 3-5 is required when a second power supply is installed in a pre-existing system to provide redundancy. When a GRF is shipped with a single power supply, this label will not be on the power supply unit.
Rack Mount and Power On Procedures Applying DC power to the GRF 400 Applying DC power to the GRF 400 Site installation requirements Warning: The DC power supply must be installed only in restricted access areas (dedicated equipment rooms, equipment closets, or the like) in accordance with Articles 110-16, 110-17, and 110-18 of the National Electric Code, ANSI/NFPA 70.
Rack Mount and Power On Procedures Applying DC power to the GRF 400 DC terminals Figure 3-6 shows the four terminals on the front of the -48V DC (negative) power supply drawer. Lucent ships the DC unit fitted with an aluminum cover over the terminal area. The cover is flipped up to attach the DC input wiring.
Rack Mount and Power On Procedures Applying DC power to the GRF 400 Wiring procedure Here are the steps to attach a wire set to a GRF 400 DC power supply: Do not have the DC wire set attached to a power source. The GRF 400 does not have an on or off switch, and a “live”...
Rack Mount and Power On Procedures Applying DC power to the GRF 400 Redundant DC supply safety considerations The notice shown below appears on the lower edge of the GRF 400 DC power supply: SEE INSTRUCTION MANUAL and refers to the following caution: If the GRF is equipped with redundant DC power supplies, please note the following when powering off (disconnecting) the GRF unit: Caution: This unit has two power inputs.
Rack Mount and Power On Procedures Powering off a GRF 400 Powering off a GRF 400 The GRF 400 does not have an on/off switch. To power down a GRF system, first use the shutdown command to cleanly shut down the operating system: # shutdown -r now Systems with AC power supplies After you execute the shutdown command, unplug the the AC power cord from the receptacle...
GRF 1600 cable panel. Grounding The GRF 1600 has a rack grounding terminal on the lower right side of the cable panel. Also on the right side, above the power supply units, there is a wrist strap ground receptacle.
Figure 3-7. Air intake and exhaust areas of the GRF 1600 Rack depth If the media cards require flat cables, the minimum rack depth required to install a GRF 1600 is 26” (66.7 cm), and the rack must be EMI/RFI shielded.
Vorsicht: Aufgrund seines Gewichts sind zur Installation des GRF 1600 auf dem Regal zwei Personen erforderlich. You need two people to safely maneuver the GRF 1600 into a standard 19” rack. First, make sure the rack will not roll or otherwise move. One person should stand on each side of the chassis.
Inserting a media card Inserting a media card Note: To operate properly, a GRF 1600 requires that a minimum of two media cards be installed. Note: Also, a face plate cover must be installed in any unused slot to maintain cooling flows.
Wear a grounded, conductive wrist strap when removing, replacing, and/or handling individual electronic components. Make sure the metallic elements in the band directly touch your exposed skin. GRF 400 GRF 1600 Wrist strap grounding sites Insertion procedure When you are properly grounded, remove the media card from its anti-static container.
As shown in Figure 3-10, the control board provides multiple connection sites. Use a null modem cable (console cross-over cable) to attach the terminal to the RS-232 serial connector site. (A GRF 400 control board is shown here, the GRF 1600 serial port is the same.) VT-100 terminal settings...
. The terminal should be connected BEFORE you power on the root GRF so you can monitor the start up and boot messages that begin immediately. The GRF 1600 is powered by either 1100W AC or negative 48V DC power supplies.
Watch the control board LEDs as the GRF powers on. Figure 3-11 shows the LED table of options. Table 3-2 has a description of each LED, including any start-up activity. Figure 3-11. GRF 1600 control board faceplate and LEDs Table 3-2. Descriptions of GRF 1600 control board LEDs...
Applying AC power to the GRF 1600 The GRF 1600 chassis does not have an on/off switch. Therefore, plug the AC power cord into the unit’s AC power supply BEFORE you plug the cord into a wall or other receptacle.
Rack Mount and Power On Procedures Applying AC power to the GRF 1600 Warnung: Wenn das Netzteil mit einer Netzkabelklemme ausgestattet ist, muß sich die Steckdose nahe dem Gerät befinden und leicht zugänglich sein. Das Netzkabel darf nicht länger als 3 m sein.
Figure 3-13. Warning label required for redundant supplies What to do next... With the terminal attached to the serial port and AC power applied to the GRF 1600, the system has automatically booted. Go to the next chapter. Chapter 4 describes the first-time configuration script and initial system tasks that bring the GRF to an operational state, ready...
Rack Mount and Power On Procedures Applying DC power to the GRF 1600 Applying DC power to the GRF 1600 Site installation requirements Warning: The DC power supply must be installed only in restricted access areas (dedicated equipment rooms, equipment closets, or the like) in accordance with Articles 110-16, 110-17, and 110-18 of the National Electric Code, ANSI/NFPA 70.
Rack Mount and Power On Procedures Applying DC power to the GRF 1600 Caution: The power supplies contain hazardous voltages and energy levels. • Do not attempt to service a unit yourself. Refer all servicing to qualified personnel. Vorsicht: In den Netzteilen liegen Hochspannung und gefährliche Energiepegel an.
Ground terminal pair NEGATIVE 48V terminal pair POSITIVE 48V terminal pair Figure 3-14. Terminal pairs on GRF 1600 DC power supply Wiring procedure: Disconnect power to the cables that you will attach to the DC power supply. Check that the power supply switch is set to off and that the power supply drawers are pushed fully into the chassis.
Figure 3-15. DC supply wires attached to GRF 1600 DC terminal pairs Locking tab The GRF 1600 DC power supply has a locking tab that unlocks the power drawer only when the switch in the off position. When the switch is in the off position, the switch cannot be set on without lifting the tab and locking the power drawer in the chassis.
The warning label shown in Figure 3-16 is required when a second DC power supply is installed in a pre-existing GRF 1600 to provide redundancy. When a GRF is shipped with a single power supply, this label will not be on the power supply unit.
Powering off a GRF 1600 Powering off a GRF 1600 The GRF 1600 does not have an on/off switch. To power down a GRF system, first use the shutdown command to cleanly shut down the operating system: # shutdown -r now...
Chapter 4 describes the first-time configuration script and initial system tasks that bring the GRF to an operational state, ready for media card cabling and verification. The procedures are the same for the GRF 400 and the GRF 1600, any differences are noted. The tasks described in this chapter are: –...
Initial System Set-up First communication with the router First communication with the router This section describes what you see at the terminal after you power on a GRF. When you plug in the GRF, it powers on and begins to boot. Boot activity is displayed on the screen.
Initial System Set-up Logging in as root Changing the configuration script later If later you need to change any of the information you entered in the first-time configuration script, you can run the script again. Enter: # config_netstart The script will run again and will re-prompt for the same information as the first time. Logging in as root This section describes the root log in to the GRF.
Initial System Set-up The de0 interface At the # prompt, type: and you are prompted to enter the old password: passwd passwd Old password: Enter the new password twice, as prompted: (use at least eight alphanumeric characters) New password: • • • • • • • • • • Retype new password: •...
Initial System Set-up Attaching the maintenance interface de0 Attaching the maintenance interface de0 The control board supports the maintenance connection to the GRF from a site’s local administrative Ethernet. This is the recommended mode of access for GRF system management and administration. In the first-time configuration script, you entered the IP address and netmask for the maintenance interface .
Initial System Set-up Administrative log on Administrative log on After you attach the Ethernet connection from an administrative LAN to the control board, you can from your administrative station to the GRF using the IP address assigned in telnet the configuration script. For normal day-to-day operations, you will likely use the administrative log in, not the root.
Initial System Set-up Overview of GRF user interface components Overview of GRF user interface components This overview is intended to help you understand what is happening in the procedures that make up the rest of this chapter. The procedures use both the Command Line Interface (CLI) and the UNIX shell.
Initial System Set-up Overview of GRF user interface components UNIX shell While in the CLI you use the sh command to open a UNIX shell. The shell supports standard UNIX commands and the GRF UNIX-like commands. You can manage the GRF using the UNIX network and configuration management commands.
Initial System Set-up About GRF logs and dumps About GRF logs and dumps Logs When the GRF first boots and loads, logging is not enabled. System memory restrictions on the GRF control board require that logging be to external storage. If target external storage is not specified to receive log entries, log entries are not saved.
Initial System Set-up About GRF logs and dumps Accessing a log file To display the contents of a specific log file, change directory to and use the more /var/log command to display the contents of a specific log file. To access output of grconsole log, use this sequence of commands: # cd /var/log # more gr.console...
Initial System Set-up Option 1: Log and dump to a PCMCIA device Option 1: Log and dump to a PCMCIA device Logging can be done either remotely or locally to an external PCMCIA device. Because system memory (RAM) provides a fixed amount of log storage, upgrading GRF RAM increases storage for route tables and other routing data, but does not provide additional space to store logs and dumps.
Initial System Set-up Installing a PCMCIA device Installing a PCMCIA device The procedure formats and initializes an external device (flash or disk), temporarily mounts it , creates subdirectories and symbolic links, and creates a permanent site file for storing /mnt the symbolic links.
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Initial System Set-up Installing a PCMCIA device # comma separated list without spaces. # Blank lines and lines beginning with `#' are comments. /dev/rd0a /dev/wd2a /var/log #PCMCIA slot A, use wd3a for B Edit the file to specify the location where the logs will be kept. /etc/syslog.conf After you edit , you need to send a HUP signal to syslogd.
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Initial System Set-up Installing a PCMCIA device If you had previously configured your GRF to log messages to a directory other than , you changed settings in /var/log /etc/grclean.conf files. Go back into those files now and change the log /etc/grclean.logs.conf directory.
Initial System Set-up Installing a PCMCIA device Manufacturer Name: "Kingston Technology" Product Name: "DataPak 520" Function ID: 4 (PC card ATA) Assigned IRQ: 11 Assigned I/O port1: 0x3d0-0x3df Slot 1: flags=0x5<UP,EMPTY> If you specify the slot number ( 0 or 1), csconfig retunrs information about the specified slot.
Initial System Set-up Option 2: Set up a syslog server Option 2: Set up a syslog server One way to log over the network is to use syslog and set up a remote syslogd server (syslog host). A syslog server is another workstation on the maintenance/administrative LAN that has sufficient memory to store log files.
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Initial System Set-up Option 2: Set up a syslog server local4.* /var/log/gr.conferrs local5.* /var/log/mib2d.log On the syslog server, use the touch command to create the log files in the server’s directory or wherever log files normally reside on the server: /var/log # cd /var/log/ # touch gritd.packets gr.console gr.boot grinchd.log gr.conferrs...
Initial System Set-up Option 3: Use an NFS-mounted file system Option 3: Use an NFS-mounted file system The maintenance Ethernet interface must be used for NFS-mounted file systems. Caution: NFS mounting CANNOT be done through a media card interface (for example, ).
Initial System Set-up Option: Attaching a modem to the GRF Option: Attaching a modem to the GRF Although you must connect a VT-100 terminal to do the initial configuration, after that you can install a modem connection. The GRF supports two modem options. One option is to attach a terminal server to the control board serial port (RS-232) and then attach a modem to the terminal server.
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Initial System Set-up Option: Attaching a modem to the GRF Configure the modem – this procedure assumes you are connecting a USR 56K PCMCIA modem. You will enter a series of standard modem at commands. After you enter an at command, you get a response, usually “OK”.
After you execute the shutdown -r now command, use the disconnect device in the site’s fixed wiring to shut off current from the DC source. GRF 1600 After you execute the shutdown -r now command, push the DC power supply switch to the off position.
Initial System Set-up What to do next What to do next At this point the GRF is powered, the administrative LAN is connected, and you have completed initial system IP configuration using the first-time configuration script. You should also have configured system logging. The next chapter describes media card cabling requirements and ways to check out and verify those connections.
Cabling and Verifying Media Cards Chapter 5 discusses cabling requirements for each type of media card and describes the information provided by each card’s LEDs. Software release 1.4 does not support the first versions of the ATM OC-3c or FDDI media cards.
Cabling and Verifying Media Cards Returning a media card to Lucent Returning a media card to Lucent If you are upgrading a media card or have a hardware problem with a media card, please use the following procedure to return the media card to Lucent. Obtain a Return Material Authorization (RMA) number from your local or regional Customer Service (TAC) organization.
• Use a heavy-duty cardboard box, tape securely shut. Ship via FedEx Enclose the RMA number and ship via FedEx to: Lucent Technologies, Inc. RMA Department 1701 Harbor Bay Parkway Alameda, CA 94502 GRF 400/1600 Getting Started - 1.4 Update 2...
Wrist strap connector sites Minimum load requirement To operate properly, the GRF 1600 requires that at least two media cards be installed. Also, a face plate cover must be installed in any unused slot to maintain cooling flows. On-card connectors Media cards are actually two logic boards joined to make a single component.
Cabling and Verifying Media Cards Inserting a media card into the GRF Warnung: An den Rückwandplatinen der GRF liegen gefährliche Hochspannungen ab. Zum Auswechseln der Medienkarte jeweils nur eine Karte entfernen. Bei zwei gleichzeitig entfernten Karten ist der Bediener gefährlichen Spannungen ausgesetzt. Chassis insertion procedure When you are properly grounded, remove the media card from its anti-static container.
Cabling and Verifying Media Cards Inserting a media card into the GRF Hot swapping media cards GRF media cards are hot-swappable per media type. That is, you can swap out a HSSI card and replace it with another HSSI card. When the new HSSI card starts up and boots, it is identified to the system and is ready to be configured.
Cabling and Verifying Media Cards Cabling the media cards Cabling the media cards The GRF chassis is shipped with all media cards and the control board installed. Other than making sure face plate screws are tight, media cards need no attention prior to attaching the media interface cables.
Cabling and Verifying Media Cards Cabling the media cards Table 5-1. Media card cable specifications (continued) Cables/Card Description SONET OC-3c multimode 62.5/125 micron fiber optic cables SONET OC-3c single mode 9/125 micron fiber optic cables Differences in media card loading The same GRF system does not always come up the same way each time—...
Cabling and Verifying Media Cards ATM OC-3c (ATM/Q) media card ATM OC-3c (ATM/Q) media card The ATM OC-3c (also called ATM/Q) media card provides two full-duplex interfaces. ATM OC-3c cards are available in single and multimode versions. The ATM/Q media card has hardware support for large route table look-up.
Cabling and Verifying Media Cards ATM OC-3c (ATM/Q) media card Laser safety The ATM OC-3c single mode media card contains a Class 1 laser product. The Class 1 laser diode is an integral part of the transceiver module. CLASS 1 LASER PRODUCT KLASSE 1 LASER PRODUKT (g0079) Warning: Only authorized service personnel should attempt to repair this equipment.
Cabling and Verifying Media Cards ATM OC-12c media card ATM OC-12c media card The GRF supports two ATM OC-12c media cards, version 1 and version 2. The card names you see in CLI profiles, logs, and statistics displays are atm-oc12-v1 atm-oc12-v2 Version 2 has an updated SAR component.
Cabling and Verifying Media Cards ATM OC-12c media card Table 5-4. ATM OC-12c LEDs Description STAT 0 These green LEDs blink during self-test. When self-test completes, STAT 1 STAT 0 blinks ten times a second and STAT 1 blinks once a second. STAT 0 and STAT 1 indicate the activity of normal system interrupts.
Cabling and Verifying Media Cards ATM OC-12c media card Table 5-5 provides technical information about the laser diode on the ATM OC-12c single mode media card: Table 5-5. ATM OC-12c csingle mode laser information Manufacturer Hewlett Packard Part number CDX2622 Laser type Fabry Perot Wave length...
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Cabling and Verifying Media Cards ATM OC-12c media card Keep cables off the floor Cables left on the floor can get damaged. The resulting broken fiber might work fine temporarily but begin to cause problems when the cable is moved or bent the other way. Keep the connectors clean A broken cable or dirty connector can deliver data, but with errors.
Cabling and Verifying Media Cards FDDI/Q media cards FDDI/Q media cards The FDDI/Q media card provides four full-duplex interfaces. Figure 5-6 shows a FDDI/Q faceplate. (g0005) Figure 5-6. FDDI/Q media card faceplate LEDs Each interface has a pair of LEDs that show the type of connection (OP) and traffic activity (TRX) at that interface.
Cabling and Verifying Media Cards FDDI/Q media cards Table 5-6. FDDI/Q media card LEDs (continued) Description OP0, OP1, The amber / green OP LEDs indicate the type of ring connection made at OP2, OP3 the particular interface: When OP is off, no viable connection is enabled. When OP is green, a SAS connection is configured.
Cabling and Verifying Media Cards FDDI/Q media cards FDDI connector keys Connector keys are small plastic fittings that physically prevent the wrong type of FDDI connector from being inserted into a media card interface. Lucent ships a set of keys with each FDDI media card.
Cabling and Verifying Media Cards FDDI attachment options FDDI attachment options Attachment summary A variety of attachment options are supported on GRF FDDI cards. Figure 5-10 summarizes all possible options: 1 dual, 2 single 2 single (or unused), 4 single attach: 2 dual attach: (or unused) attach: 1 dual attach:...
Cabling and Verifying Media Cards FDDI attachment options Single attach - M and S interfaces Single attach FDDI interfaces can be either master (M) or slave (S) interfaces. They require a cable with a corresponding master or slave connector. Single attach cables have an “M”...
Cabling and Verifying Media Cards Installing a FDDI optical bypass Installing a FDDI optical bypass Optical bypass capability is provided externally to the FDDI media card. A miniature six-pin DIN connector is provided on the FDDI face plate for controlling two external optical bypass switches, one for each dual attachment transceiver pair.
Cabling and Verifying Media Cards HIPPI media card HIPPI media card The HIPPI media card provides a single full-duplex interface. Figure 5-15 shows a HIPPI faceplate. (g0006) Figure 5-15. HIPPI media card faceplate Attaching HIPPI media cables The HIPPI media card provides a single duplex attachment and requires a pair of copper cables/connector ends as described in the standard HIPPI-PH, ANSI x3.183-1991.
Cabling and Verifying Media Cards HIPPI media card HIPPI 100-pin connector end Figure 5-17. HIPPI 100-pin connector Keep the bubble wrap on Lucent ships cables with the connector ends enclosed in bubble wrap. Keep this bubble wrap on while you lay out the cabling. Remove the bubble wrap when you are ready to plug in the connector.
Cabling and Verifying Media Cards HIPPI media card HIPPI card LEDs The HIPPI media card has one receive (from destination) interface and one transmit (to source) interface. The upper interface, A, is the RCV or destination interface. The lower interface, B, is the SRC or source interface.
Cabling and Verifying Media Cards HSSI media card HSSI media card A HSSI media card provides two full-duplex interfaces. Figure 5-19 shows a HSSI faceplate. (g0007) Figure 5-19. HSSI media card faceplate Attaching HSSI media cables The GRF HSSI media card provides two full-duplex attachments and requires a pair of copper cables/connector ends as described in the HSSI High Speed Serial Interface Design Specification (March 1990).
Cabling and Verifying Media Cards HSSI media card Problems with bad HSSI cables Messages similar to the following may show up in the log if a HSSI cable is bad: gr.conslog # grconslog -pf [6] [RX] Received with errors. Desc: 0x642C8002 [6] [RX] (Abort.) [6] [RX] Received with errors.
Cabling and Verifying Media Cards Ethernet media cards Ethernet media cards The 8-port Ethernet media card provides eight full-duplex interfaces. Figure 5-22 shows an 8-port faceplate. (g0003) Figure 5-22. Ethernet 8-port media card faceplate The 4-port Ethernet medis card provides four full-duplex interfaces. Figure 5-23 shows a 4-port faceplate.
Cabling and Verifying Media Cards Ethernet media cards Ethernet card LEDs Each Ethernet port has a set of four LEDs that describe the presence of a link and its type, the type of duplex or collision interface implemented, and port transfer activity. An 8-port Ethernet faceplate and LEDs are shown in Figure 5-25.
Cabling and Verifying Media Cards SONET OC-3c media card SONET OC-3c media card The SONET OC-3c media card provides a single redundant full-duplex interface and has hardware-enhanced route table lookup. The SONET card is available in single and multimode versions. Figure 5-26 shows a SONET OC-3c faceplate. The SONET card provides redundant link connections across two physical interfaces.
Cabling and Verifying Media Cards SONET OC-3c media card Table 5-10 provides technical information about the laser diode on the SONET OC-3c single mode media card: Table 5-10.SONET OC-3c single mode laser information Manufacturer Amp Inc. Part number 269085-1 Laser type InGaAsP diode Wave length 1310 nm (+/- 50 nm)
Cabling and Verifying Media Cards SONET OC-3c media card Caution: Although there may be no hazard with multimode fiber, it is not a wise practice to look into the end of any fiber optic cable. Vorsicht: Obwohl Multimodenfasern voraussichtlich keine Gefahr darstellen, empfiehlt es sich, nicht in das Ende eines Glasfaserkabels hineinzuschauen.
Cabling and Verifying Media Cards Media card reset and checkout Media card reset and checkout This section describes tools available from the system software to check out newly-installed media cards. These tools are to be used on the GRF router •...
Cabling and Verifying Media Cards Media card reset and checkout Check media card status using grcard The grcard command returns information about the status of all installed media cards. Enter: # grcard -v Here is a sample of the slot, media, and state information returned from the grcard command: # grcard -v Slot HWtype...
Cabling and Verifying Media Cards Media card reset and checkout A system fault can cause a card to go into the Panic state. After a card panics, it needs operator or kernel intervention to start up. The kernel either reboots the card, or dumps and then reboots, depending upon how variables are set in the Dump or Card profile.
Cabling and Verifying Media Cards Rebooting the system Rebooting the system You shut down the system depending upon how you connect to the GRF. When you are using the VT 100 terminal (or laptop), use the grms command. When you are have logged into the GRF from a remote workstation on the administrative Ethernet, use the shutdown command.
Cabling and Verifying Media Cards Running media card hardware diagnostics Running media card hardware diagnostics You can run a basic diagnostic command that will tell you if a media card has a hardware problem. The grdiag command performs internal BIST-level diagnostics. A media card that fails this grdiag must be replaced and returned to Lucent.
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Cabling and Verifying Media Cards Running media card hardware diagnostics Portcard Field Diagnostic ################################################################# # WARNING: Make sure your current Configuration is Saved to FLASH!! ################################################################# If Not Would you Like to Save it Now y/n? [y]: You see this warning whether or not there are unsaved configuration changes. If you enter yes, save changes, the activity on internal flash is reported back: If Not Would you Like to Save it Now y/n? [y]: y...
Cabling and Verifying Media Cards Running media card hardware diagnostics already specified. If you answer No again to changing parameters, the grdiag script ends and you are back at the shell prompt. Are you absolutely sure you want to proceed? y/n? [No]: n Re-enter test parameters? y/n? [No]: n...
Cabling and Verifying Media Cards Running media card hardware diagnostics After the cards reboot, you see the final report. This report is also sent to /var/log/grdiag.log Test time: 0 hrs; 2 min. End date: Mon Apr 20 13:27:49 CDT 1999 ***************************************************************** Field Diagnostic Test Ended.
Cabling and Verifying Media Cards Running media card hardware diagnostics Error reporting grdiag reports to and to the log. If you are /var/log/grdiag.log /var/log/gr.console logging remotely, check that location for grdiag reports. Pass-fail status reports from the diagnostic tests are sent to .
Cabling and Verifying Media Cards Running media card hardware diagnostics What to do next... You have verified that the system and media card hardware is operating. Go to the GRF Configuration and Management manual to learn more about using the CLI and completing media card configuration.
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GRF 1600 control board specifications ........
GRF Specifications GRF 400 chassis specifications GRF 400 chassis specifications Table A-1 lists the general characteristics of the GRF 400 chassis. Table A-1. GRF 400 chassis characteristics Element Value Weight 26.5 pounds, chassis and one power supply (11.9 kg) Dimensions 5.25 in (H) x 19 in (W) x 19 in(L) (13.34 cm x 48.26 cm x 48.26 cm) Media cards 1–4 per chassis, multiple media types supported simultaneously...
GRF Specifications GRF 1600 chassis specifications GRF 1600 chassis specifications Table A-2 lists the general characteristics of the GRF 1600 chassis. Table A-2. GRF 1600 chassis characteristics Element Value Weight 103.5 pounds, chassis and one power supply (46.6 kg) Dimensions 23.0 in (H) x 19 in (W) x 21 in (L) (58.4 cm x 48.26 cm x 53.3 cm)
2, one 85- or 175MB ATA flash device can be installed, PCMCIA modem card is another option GRF 1600 control board specifications The GRF 1600 control board has the following characteristics: Table A-5. Characteristics of the GRF 1600 control board Element...
GRF Specifications Media card specifications Media card specifications FDDI specifications The FDDI media card has the following characteristics: Table A-7. FDDI media card specifications Element Value Interfaces per card Four bi-directional interfaces, multimode All has unique IP and MAC addresses, are configurable as: - two dual-attach interfaces - one dual-attach interface and two single-attach interfaces - four single-attach interfaces...
GRF Specifications Media card specifications ATM OC-3c specifications The ATM OC-3c media card has the following characteristics: Table A-8. ATM OC-3c media card specifications Element Value Interfaces per card Two bi-directional interfaces - single mode card - multimode card Media transfer rate 155 Mbps Processors 40-MHz transmit processor, 40-MHz receive processor...
GRF Specifications Media card specifications ATM OC-12c specifications The ATM OC-12c media card has the following characteristics: Table A-9. ATM OC-12c media card specifications Element Value Interfaces per card One bi-directional interface - single mode card - multimode card Media transfer rate 622 Mbps Processors 40-MHz transmit processor, 40-MHz receive processor...
GRF Specifications Media card specifications 10/100Base-T specifications The 10/100Base-T media card has the following characteristics: Table A-10.10/100Base-T media card specifications Element Value Interfaces per card: 4-port - four auto-sensing bi-directional interfaces 8-port - eight auto-sensing bi-directional interfaces Media transfer rate 10 or 100 Mbps Processors 40-MHz transmit processor, 40-MHz receive processor...
GRF Specifications Media card specifications HIPPI specifications The HIPPI media card has the following characteristics: Table A-12.HIPPI media card specifications Element Value Interfaces per card One dual-simplex interface Media transfer rate 800 Mbps Processor 40-MHz TI C31 Data buffers 4 MB input, 4 MB output Route table support 70K entries Max transmission unit...
GRF Specifications Media card specifications SONET OC-3c specifications The SONET OC-3c media card has the following characteristics: Table A-13. SONET OC-3c media card specifications Element Value Interfaces per card One full duplex OC-3c SONET/STM-1 SDH - supports an APS 1+1 Architecture Switching - single mode, multimode Media transfer rate 155 Mbps...
GRF 1600 (GRF-16-DC) Product warranty Lucent Technologies warrants that the GRF unit will be free from defects in material and workmanship for a period of twelve (12) months from date of shipment. Lucent Technologies shall incur no liability under this warranty if: –...
The customer must return the defective product to Lucent Technologies within fourteen (14) days after the request for replacement. If the defective product is not returned within this time period, Lucent Technologies will bill the customer for the product at list price. Out-of warranty repair Lucent Technologies will either repair or, at its option, replace a defective product not covered under warranty within ten (10) working days of its receipt.
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GRF 400 Agency Notices This appendix contains Agency information for the GRF-4-AC and GRF-4-DC models. GRF 400/1600 Getting Started - 1.4 Update 2 October, 1998...
GRF 400 Agency Notices GRF 400 agency regulatory notices GRF 400 agency regulatory notices Agency status Safety - ANSI/UL 1950 - CAN/CSA-C22.2 No. 950 TUV GS - EN 60950 FCC Class A (commercial or industrial environments) CE Mark EN 55022 (Class A emissions) EN 50082-2 (heavy industry immunity) Canadian DOC Radio Interference Regulation, Class A...
GRF 400 Agency Notices GRF 400 agency regulatory notices Federal Communications Commission notice Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
48VDC–60VDC Frequency: 50–60 Hz Current: 6.0–3.0 A 7.0A The Manufacturer / Supplier: Lucent Technologies, Inc. High Performance Networking Division 10250 Valley View Road Eden Prairie, MN 55344 Declares that: GRF-4-AC and GRF-4-DC are not intended to be connected to a public telecommunications network.
GRF 400 Agency Notices GRF 400 agency regulatory notices EC declaration: GRF-4-AC EC Declaration of Conformity (g0101) Lucent Technologies, Inc. High Performance Networking Division 10250 Valley View Road Eden Prairie, MN 55344 declare under the sole responsibility that the GRF-4-AC...
GRF 400 Agency Notices GRF 400 agency regulatory notices EC declaration: GRF-4-DC EC Declaration of Conformity (g0101) Lucent Technologies, Inc. High Performance Networking Division 10250 Valley View Road Eden Prairie, MN 55344 declare under the sole responsibility that the GRF-4-DC...
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GRF 1600 Agency Notices This appendix contains Agency information for the GRF-16-AC and GRF-16-DC models. GRF 400/1600 Getting Started - 1.4 Update 2 October, 1998...
GRF 1600 Agency Notices GRF 1600 agency regulatory notices GRF 1600 agency regulatory notices Agency status Safety - ANSI/UL 1950 - CAN/CSA-C22.2 No. 950 TUV GS - EN 60950 FCC Class A (commercial or industrial environments) CE Mark EN 55022...
GRF 1600 Agency Notices GRF 1600 agency regulatory notices Federal Communications Commission notice Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
100–240 VAC 48VDC–60VDC Frequency: 50–60 Hz Current: 12.0–6.0 A The Manufacturer / Supplier: Lucent Technologies, Inc. High Performance Networking Division 10250 Valley View Road Eden Prairie, MN 55344 Declares that: GRF-16-AC and GRF-16-DC are not intended to be connected to a public telecommunications network.
GRF 1600 Agency Notices GRF 1600 agency regulatory notices EC declaration: GRF-16-AC EC Declaration of Conformity (g0101) Lucent Technologies, Inc. High Performance Networking Division 10250 Valley View Road Eden Prairie, MN 55344 declare under the sole responsibility that the GRF-16-AC...
GRF 1600 Agency Notices GRF 1600 agency regulatory notices EC declaration: GRF-16-DC EC Declaration of Conformity (g0101) Lucent Technologies, Inc. High Performance Networking Division 10250 Valley View Road Eden Prairie, MN 55344 declare under the sole responsibility that the GRF-16-DC...
AC receptacle, type attaching SONET OC-3c 5-29 AC voltage, characteristics attaching to control board 3-21 administrative LAN types required connection LEDs, GRF 1600 chassis connection LEDs, GRF 400 cooling 3-23 dimensions preset IP address power usage site-supplied cable...
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/etc/grclean.logs.conf 4-14 attaching Ethernet LAN /etc/syslog.conf cable connector sites 3-21 editing for logging 4-13 control board, GRF 1600 Ethernet, administrative battery for BIOS and clock 2-10 connecting to control board description and diagram preset IP address LEDs 3-23...
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3-22 using instead of shutdown 5-34 power supply failure 3-22 grounding power supply failures 2-12 GRF 1600 requirements 3-16 power supply fans 2-12 grreset command power supply LEDs ways to reset media cards 5-33 power supply locking tab, clamp...
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5-21 preset for administrative LAN HSSI 5-24 IP switch control board SONET 5-29 see control board media card dimensions, weight minimum installed, GRF 1600 2-15 media cards components 3-19 keys DC power requirements for FDDI/Q cards 5-17 determining status 5-32...
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UNIX and CLI differences GRF 400, AC 1-10 3-26 PCMCIA modem GRF 400, DC 1-12 3-14 compatible with GRF 4-19 redundant power supplies, GRF 1600 how to connect 4-19 AC units 2-15 2-17 PCMCIA modem device for GRF systems 4-19 remote logging...
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4-17 grms command 5-34 side rails requirements for GRF 1600 3-17 side rails, GRF 1600 rack support 3-17 UNIX passwords single attach connectors 5-18 slave interface/connector (FDDI) 5-19 slot number...
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