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Cisco NCS 4009 Installing

Cisco NCS 4009 Installing

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Installing Power Components
This chapter provides instructions on how to install and reinstall power components in the Cisco NCS 4009
chassis. It also covers connecting and disconnecting power and powering on the chassis.
The Cisco NCS 4009 chassis ships with power trays and power modules installed.
This chapter presents the following topics:
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Power Connection Guidelines
You can configure the chassis with either an AC input or DC input power subsystem, so the site power source
requirements differ depending on the power subsystem in your chassis. Ensure all power connection wiring
conforms to the rules and regulations in the National Electrical Code (NEC) as well as local codes.
Each power tray includes 4 power modules each. The chassis has two power trays for redundancies (each tray
can provide the full power to the chassis). The power tray provides electrical connections to the chassis
backplane. Each power module can be individually plugged in or out from the tray.
Caution
Caution
Power Connection Guidelines, on page 1
Installing the Chassis Ground Cable, on page 7
Installing an AC or DC Power Tray, on page 9
Installing Power Modules, on page 10
Installing the DC Power Front Connection Adapter, on page 13
Connecting Power to the Chassis, on page 21
Disconnecting AC or DC Power, on page 25
Powering On the Chassis, on page 28
Each Cisco NCS 4009 chassis is powered by only one type of input: AC or DC. A hybrid (AC+DC) power
configuration is not supported.
Proper grounding is necessary to avoid damage from lightning and power surges. See the
Unit Bonding and Grounding Guidelines, on page 5
for grounding requirements.
Installing Power Components
NEBS Supplemental
1

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Summary of Contents for Cisco NCS 4009

  • Page 1 Each power module can be individually plugged in or out from the tray. Caution Each Cisco NCS 4009 chassis is powered by only one type of input: AC or DC. A hybrid (AC+DC) power configuration is not supported. Caution Proper grounding is necessary to avoid damage from lightning and power surges.
  • Page 2 For a list of the nominal and acceptable value ranges for source AC power, see Power Specifications. The Cisco NCS 4009 chassis supports two types of AC power cords: International and NEMA (USA). Figure 1: International AC Power Cord (Cisco PID NCS4K-AC-CBL-IEC) Figure 2: NEMA AC Power Cord (Cisco PID NCS4K-AC-CBL-NEMA) Note Before connecting AC input power cords to the power system, make sure that the power cords are not energized.
  • Page 3 For DC power cables, we recommend 6 AWG high-strand-count copper wire cables, rated 75°C minimum. The size of the cables depends on your chassis location from the source power. Follow your local practices for determining cable size. DC power cables are not available from Cisco, but they are available from any commercial cable vendor.
  • Page 4 Installing Power Components DC-Powered Chassis Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030 Note Before connecting DC power cables to the power system, make sure that the input power cords are not energized.
  • Page 5 Chassis Specifications The rating label is shown in the figure below. Figure 5: Rating Label for NCS 4009 DC Chassis NEBS Supplemental Unit Bonding and Grounding Guidelines You must connect the central office ground system or interior equipment grounding system permanently to the supplemental bonding and grounding connection on the side of the chassis to meet Network Equipment Building System (NEBS) requirements as well as safety compliance requirements.
  • Page 6 Installing Power Components NEBS Supplemental Unit Bonding and Grounding Guidelines Figure 6: NEBS Bonding and Grounding Point on the Cisco NCS 4009 Chassis NEBS grounding point on right of chassis To ensure a satisfactory supplemental ground connection to the chassis, use the following parts: •...
  • Page 7 • One grounding wire. Although we recommend at least 2-4-AWG multistrand copper wire, the wire diameter and length depend on your chassis location and site environment. Note These parts are not available from Cisco (with the exception of the grounding lug), but they are available from commercial vendors. Installing the Chassis Ground Cable This section describes how to install a ground cable to the NEBS bonding and grounding point on the side of the Cisco NCS 4009 chassis.
  • Page 8 Installing Power Components Installing the Chassis Ground Cable Figure 7: Straight Barrel Grounding Lug Steps To attach the ground cable to the chassis, perform the following steps: Procedure Step 1 Use the crimping tool mandated by the lug manufacturer to crimp the lug to the ground cable. Step 2 Use the socket wrench to attach the lug and ground cable to the grounding point.
  • Page 9 Connect the other end of the ground cable to a grounding point at your site, according to site requirements. Installing an AC or DC Power Tray The power tray is preinstalled on the Cisco NCS 4009 chassis. The following procedure describes how to install an AC or DC power tray in the chassis.
  • Page 10 Installing Power Components Installing Power Modules • 6-inch, number-1 Phillips screwdriver • Cisco NCS 4009 power trays (NCS4K-AC-PEM or NCS4K-DC-PEM) Steps Follow these steps to install an AC or DC power tray into the chassis: Procedure Step 1 Slide the power tray into the bay until it engages its mating connector on the chassis.
  • Page 11 • Off: No internal faults detected on the power module. Installing AC or DC Power Modules The following section describes how to install AC or DC power modules. Required Tools and Equipment • Cisco NCS 4009 power modules (NCS4K-AC-PSU=) • Cisco NCS 4009 power modules (NCS4K-DC-PSU=) Steps Caution To prevent damage to the power tray backplane connector, do not use excessive force when inserting the power module into the power tray.
  • Page 12 Installing Power Components Installing AC or DC Power Modules Figure 10: Example of Inserting the AC Power Module Step 3 Secure the power module into the power tray using the snap hook. Installing Power Components...
  • Page 13 Installing Power Components Installing the DC Power Front Connection Adapter Figure 11: Example of Securing the Snap Hook (AC) Step 4 Repeat these steps for the other AC or DC power modules. Installing the DC Power Front Connection Adapter If you have limited access to the back of the chassis, or limited space behind the chassis, you can use the DC Power Front Connection Adapter.
  • Page 14 • If the rear to front power adapter is going to be used, the sub assembly needs to be attached first to the chassis and then both units installed in a rack or cabinet. • The Cisco NCS 4009 chassis should be completely removed from the packaging and installed in the rack or cabinet.
  • Page 15 Installing Power Components Installing the DC Power Front Connection Adapter Figure 13: Installing the DC-FA Brackets Step 2 Attach the rear cable guide on top of the chassis toward the rear, and attach the insulator sheet on top of the chassis toward the front.
  • Page 16 Installing Power Components Installing the DC Power Front Connection Adapter Figure 14: Attaching Rear Cable Guide and Insulator Sheet Rear cable guide Insulator sheet Step 3 Place the DC adapter on top of the chassis using the embossed references on the top chassis cover. Installing Power Components...
  • Page 17 Installing Power Components Installing the DC Power Front Connection Adapter Figure 15: Placing DC Adapter on Top of Chassis Step 4 Connect the power cables on the rear of the of DC adapter to the chassis terminal blocks. Follow the connections scheme as shown on the labels available on the DC adapter and the chassis.
  • Page 18 Installing Power Components Installing the DC Power Front Connection Adapter Figure 16: Connecting Power Cables Connect power cables to chassis terminal blocks Step 5 Install the rear cover to protect the cables. Installing Power Components...
  • Page 19 Installing Power Components Installing the DC Power Front Connection Adapter Figure 17: Installing the Rear Cover Step 6 Install the chassis and DC adapter subassembly in the rack or cabinet. Attach the chassis brackets and DC brackets to the rack. Installing Power Components...
  • Page 20 Installing Power Components Installing the DC Power Front Connection Adapter Figure 18: Chassis Brackets and DC Adapter Brackets DC adapter brackets Chassis brackets (one on other side is not visible) Step 7 Connect the power cables coming from batteries or from the PDU unit to the DC adapter terminal blocks on the front side of the unit .
  • Page 21 Installing Power Components Connecting Power to the Chassis Figure 19: Connecting Power Cables to Terminal Blocks Terminal Blocks Connecting Power to the Chassis Use one of the following procedures to connect power to your chassis: Connecting Power to an AC-Powered Chassis Follow these steps to connect the AC power cords to the chassis.
  • Page 22 Installing Power Components Connecting Power to a DC-Powered Chassis Procedure Step 1 Check that the power switch is set to the OFF (0) position. The power switch is on the right of the power tray. Step 2 Check that the circuit breaker assigned to the AC power source you are connecting is set to off. Step 3 Verify that the permanent ground connection (central office grounding system) has been installed to the NEBS grounding location on the chassis.
  • Page 23 Installing Power Components Connecting Power to a DC-Powered Chassis • In some cases, the source DC cable leads might have a positive (+) or a negative (–) label. This is a relatively safe indication of the polarity, but you must verify the polarity by measuring the voltage between the DC cable leads .
  • Page 24 Installing Power Components Connecting Power to a DC-Powered Chassis Figure 21: DC Power Tray Rear Panel Figure 22: Typical Power Connections to a Power Tray for a Single DC Power Module Power System Step 6 Replace the clear plastic safety covers over the connection terminal studs. Figure 23: Typical Plastic Safety Covers over the Power Tray Connection Terminals Installing Power Components...
  • Page 25 Powering On the Chassis, on page Disconnecting AC or DC Power The following sections explain how to disconnect AC or DC power to the Cisco NCS 4009 chassis. Disconnecting AC Power Follow these steps to disconnect an individual AC power cord:...
  • Page 26 Installing Power Components Disconnecting AC Power Do not turn off the switch on the power tray to remove AC power cords. An individual AC Caution power cord can be unplugged while the system is powered from other AC power sources. Disconnecting AC Power If it becomes necessary to disconnect all AC power from the chassis, follow these steps: Do not disconnect all power from the chassis to replace components, including power modules.
  • Page 27 Installing Power Components Disconnecting DC Power Step 2 Remove the clear plastic safety covers that fit over the DC power connection terminal studs. Warning To prevent injury and damage to the equipment, always remove the source DC power cables from the power tray terminals in the following order : (1) negative (–), (2) positive (+). Step 3 Disconnect the DC power cables from their terminals in the following order and note the color of each cable: a) Negative (PWR) cables first.
  • Page 28 Installing Power Components Reconnecting DC Power Reconnecting DC Power To reconnect DC power to a DC power tray, see Connecting Power to a DC-Powered Chassis, on page Powering On the Chassis Follow these steps to turn on power to an AC-powered or DC-powered chassis: Procedure Step 1 Power on the circuit breaker to your power sources one at a time.