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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 power components in the chassis. It also covers information
regarding connecting and disconnecting power and powering on the chassis.
The chassis ships with power trays and power modules installed.
Note
Unless otherwise specified, "chassis" refers to both Cisco NCS 4016 chassis and Cisco NCS 4009 chassis.
•
Installing Power Components
Power Connection Guidelines
You can configure the AC chassis with an AC input and the DC chassis with a DC input power subsystem.
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
Each 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. See the
Unit Bonding and Grounding Guidelines, on page 6
Installing Power Components, on page 1
for grounding requirements.
Installing Power Components
NEBS Supplemental
1

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Summary of Contents for Cisco NCS 4009

  • Page 1 The chassis ships with power trays and power modules installed. Note Unless otherwise specified, “chassis” refers to both Cisco NCS 4016 chassis and Cisco NCS 4009 chassis. • Installing Power Components, on page 1...

  • Page 2: Ac-Powered Chassis

    National Electrical Code (NEC) and any local codes. The 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: General Power And Grounding Requirements

    Installing Power Components General Power and Grounding Requirements Warning To avoid shock hazard, be sure to apply shrink wrap tubing around the wire entry area of the lug. The color coding of source DC power cable leads depends on the color coding of the site DC power source. Because there is no color code standard for source DC wiring, be sure that power source cables are connected to the power modules using the proper positive (+) and negative (–) polarity: •...

  • Page 5: Ac Power Requirements

    • Each AC power shelf contains four specific single phase AC inlet connectors. These connectors can accept four AC power cords provided by Cisco. AC power cords provided by Cisco can have a IEC-309 plug 32A rated for International power systems, or a NEMA L6-30P plug 30A rated for North America Power Systems.

  • Page 6: Nebs Supplemental Unit Bonding And Grounding Guidelines

    Installing Power Components NEBS Supplemental Unit Bonding and Grounding Guidelines • Each DC power source must comply with the safety extra-low voltage (SELV) requirements in UL 60950-1, CSA-C22.2 No. 60950-1, EN60950-1, AS/NZS 60950, and IEC60950-1. • A DC-powered system should be installed in a restricted access area in accordance with the National Electric Code, ANSI/NFPA 70.
  • Page 7 Installing Power Components NEBS Supplemental Unit Bonding and Grounding Guidelines NEBS grounding point on right side of the Screws chassis Lock washers Installing Power Components...
  • Page 8 Installing Power Components NEBS Supplemental Unit Bonding and Grounding Guidelines Figure 5: NEBS Bonding and Grounding Point on NCS 4009 NEBS grounding point on right of chassis To ensure a satisfactory supplemental ground connection to the chassis, use the following parts: •...

  • Page 9: Installing The Chassis Ground Cable

    • One grounding wire. Although we recommend at least 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 either NEBS bonding and grounding point on the front or side of the chassis.
  • Page 10 Installing Power Components Installing the Chassis Ground Cable Figure 6: 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 torque-driver to attach the lug and ground cable to either grounding point .
  • Page 11 Installing Power Components Installing the Chassis Ground Cable Figure 7: Attaching to Front NEBS Bonding and Grounding Point in the NCS 4016 Screws Lock washers Figure 8: Attaching to Side NEBS Bonding and Grounding Point in the NCS 4016 NEBS grounding point on right side of the Screws chassis Lock washers...

  • Page 12: Installing An Ac Or Dc Power Tray

    Installing Power Components Installing an AC or DC Power Tray Figure 9: Attaching to Side NEBS Bonding and Grounding Point in the NCS 4009 Step 3 Use the torque wrench to tighten the bolts to a torque of 35 in-lb (3.95 N-m).

  • Page 13: Installing Ac Or Dc Power Modules

    Installing Power Components Installing Power Modules • Cisco NCS 4016 power trays (NCS4K-AC-PEM or NCS4K-DC-PEM) • 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 14 Installing Power Components Installing AC or DC Power Modules Tools and Equipment • Cisco NCS 4016 or 4009 power modules (NCS4K-AC-PSU=) • Cisco NCS 4016 or 4009 power modules (NCS4K-DC-PSU-V1) 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 15 Installing Power Components Installing AC or DC Power Modules Figure 10: Example of Inserting the AC Power Module in the NCS 4016 Installing Power Components...

  • Page 16: Installing The Dc Power Front Connection Adapter

    Installing Power Components Installing the DC Power Front Connection Adapter Figure 11: Example of Inserting the AC Power Module in the NCS 4009 Step 3 Secure the power module into the power tray using the snap hook. Step 4 Repeat these steps for the other AC or DC power modules.
  • Page 17 Installing Power Components Installing the DC Power Front Connection Adapter Figure 12: DC Power Front Connection Adapter Prerequisites • If the rear to front power adapter is going to be used, then the sub assembly needs to be attached first to the chassis and then both units installed in a rack or cabinet.
  • Page 18 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 19 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 20 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 21 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. Step 6 Install the chassis and DC adapter subassembly in the rack or cabinet. Attach the chassis brackets and DC brackets to the rack.
  • Page 22 Installing Power Components Installing the DC Power Front Connection Adapter Figure 17: 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 23: Connecting Power To The Chassis

    Installing Power Components Connecting Power to the Chassis Figure 18: 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 24: Connecting Power To A Dc-Powered Chassis

    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 25 Installing Power Components Connecting Power to a DC-Powered Chassis the DC cable leads . Be sure that the positive (+) and negative (–) cable leads match the positive (+) and negative (–) labels on the power module when making the measurement. •...
  • Page 26 Installing Power Components Connecting Power to a DC-Powered Chassis Figure 20: DC Power Tray Rear Panel Figure 21: 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. Installing Power Components...
  • Page 27 Installing Power Components Connecting Power to a DC-Powered Chassis Figure 22: Typical Plastic Safety Covers over the Power Tray Connection Terminals Step 7 Proceed to the Powering On the Chassis, on page Installing Power Components...

  • Page 28: Disconnecting Ac Or Dc Power

    Installing Power Components Disconnecting AC or DC Power Disconnecting AC or DC Power The following sections explain how to disconnect AC or DC power. Disconnecting AC power Follow these steps to disconnect an individual AC power cord or to disconnect all AC power from the chassis. Procedure Step 1 Set the power switch at the rear of the AC power tray to the OFF (0) position and also power off the circuit...

  • Page 29: Reconnecting Dc Power

    Installing Power Components Reconnecting DC Power To ensure that power remains off while you are performing this procedure, lock-out/tag-out the Warning circuit breaker switch in the OFF (0) position until you are ready to turn it on. 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 (+).
  • Page 30 Installing Power Components Powering On the Chassis Installing Power Components...

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Ncs 4016

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