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Installing Power Components
This chapter describes how to install the Cisco NCS 6008 LCC power components.
Note
For information about removing power components, see the "Removing the Power Components" section.
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Power System Overview
The LCC power system is made up of six AC or DC power trays that contain AC or DC PMs.
Basic Chassis Power Information
The Cisco NCS 6008 LCC can be configured with either an AC input power system or a DC input power
system. Site power requirements differ, depending on the source voltage used.
For information about power safety requirements, see the
the Cisco Network Convergence System 6000 Series Routers guide.
Follow these precautions and recommendations when planning power connections to the LCC:
• Check the power at your site before installation to ensure that you are receiving clean power (free of
• Install proper grounding to avoid damage from lightning and power surges.
There are two types of power trays: an AC tray and a DC tray. An AC power tray houses up to three AC PMs,
while a DC power tray houses up to four DC PMs. It is required that you use only one type of power tray,
either AC or DC, in a LCC at a time.
Bonding and Grounding Guidelines
The LCC has two safety earth ground connections. The LCC allows you to connect the central office ground
system or interior equipment grounding system to either of the two grounding points on the rear side of the
Power System Overview, on page 1
Installing Power Components, on page 10
Powering On and Powering Off the LCC, on page 27
spikes and noise). Install a power conditioner, if necessary.
Regulatory Compliance and Safety Information for
Installing Power Components
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Summary of Contents for Cisco NCS 6008 LCC
- Page 1 The LCC power system is made up of six AC or DC power trays that contain AC or DC PMs. Basic Chassis Power Information The Cisco NCS 6008 LCC can be configured with either an AC input power system or a DC input power system. Site power requirements differ, depending on the source voltage used.
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Page 2: Ac Power System
Installing Power Components AC Power System LCC. Threaded ground inserts are located on a rear panel near the top of the LCC (above the power trays) and near the bottom of the LCC. The grounding points are also referred to as Network Equipment Building System (NEBS) bonding and grounding points. - Page 3 The AC power system requires single-phase AC input power to each inserted PM. If you have 3-phase AC Delta or AC Wye at your equipment, a Cisco NCS power distribution unit (PDU) is required to convert 3-phase AC input power to single-phase AC input power system.
- Page 4 Installing Power Components Mounting the AC PDU For detailed information on AC PDUs, see the Cisco CRS 3-Phase AC Power Distribution Unit Installation Guide Mounting the AC PDU The AC PDU mounting bracket holds three AC PDUs. An AC PDU mounting bracket can be attached to the left and right sides of the LCC.
- Page 5 Installing Power Components Tie-Down Bar and Cable Clamps Figure 4: Mounting the AC PDU in an External 19-Inch Rack Tie-Down Bar and Cable Clamps A 19-inch tie-down bar can be used to add strain relief for input power cables from the AC PDUs or cables routed from a raised floor.
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Page 6: Dc Power System
Installing Power Components DC Power System Note The tie-down bar and cable clamps are not supplied by Cisco. You can order these parts from a commercial vendor such as Panduit (see http://www.panduit.com). Figure 6: Optional Cable Clamps for Multi-Fiber Cables... - Page 7 Installing Power Components DC Power System Table 1: DC Input Current and Voltage Information Nominal input voltage –48 VDC or –60 VDC (tolerance range: –40 to –72 VDC) Input line current 50 A maximum at –48 VDC 40 A maximum at –60 VDC 60 A maximum at –40 VDC Each wiring block on the DC power tray contains two sets of terminals, one positive and one negative, and is covered by a plastic terminal block cover that is secured by a screw to a torque of 5 to 7 in-lb (0.56 to 0.79...
- Page 8 Installing Power Components DC Input-Power-Present LEDs Figure 7: 90-Degree Angle Standard Barrel Compression Lug DC Input-Power-Present LEDs The DC input-power-present LED provides a visual indication that there is voltage present across the input terminal connection. The DC input-power-present LED starts to light up when the input voltage reaches –20 VDC, gets brighter as the voltage increases, and is fully lit when the input voltage reaches –48 VDC.
- Page 9 Installing Power Components AC Input-Power-Present LEDs Caution If the input voltage polarity is reversed, or if the LED circuit fails, the LED will not light. In this case, service personnel should check for hazardous voltages before working on the system. Figure 8: DC Power Module Status Indicators Input OK LED ON when input voltage is present...
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Page 10: Installing Power Components
Output OK LED ON when output voltage is present Fault LED ON when an internal fault has occurred on the PM Installing Power Components This section describes how to install power components in the Cisco NCS 6008 LCC. Installing Power Components... - Page 11 • Four M6 bolts with integrated square cone locking washers (shipped pre-installed on the LCC, two at each grounding point). • We recommend 2-6-AWG multistrand copper ground cable. This cable is not available from Cisco; it is available from any commercial cable vendor such as Panduit (see http://www.panduit.com...
- Page 12 Installing Power Components Steps Figure 10: 180-Degree Angle Straight Barrel Grounding Lug Steps To attach the ground cable to the LCC, perform the following steps: 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 either grounding point (see below figure).
- Page 13 AC or DC Power Tray” section. This section describes how to install an AC or DC power tray in the Cisco NCS 6008 LCC. Although there are differences between AC and DC power trays, they are installed by using the same procedures as described below.
- Page 14 Installing Power Components Prerequisites Figure 14: DC Power Tray Front View Figure 15: DC Power Tray Rear View (Clear Plastic Safety Cover Removed) Prerequisites Before you reinstall an AC or DC power tray, do the following: • Power off the power shelf that houses the power tray you are about to install by using the 1/0 power switch on the respective PCM.
- Page 15 • 6-inch, number-2 Phillips screwdriver • Torque screwdriver with number-2 Phillips head and torque rated up to 55 in-lb (6.2 N-m) • AC or DC power tray • AC power tray (Cisco PID NCS-AC-PWRTRAY=) • DC power tray (Cisco PID NCS-DC-PWRTRAY=) Steps...
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Page 16: Installing An Ac Or Dc Power Module
Installing an AC or DC Power Module This section describes how to install AC or DC PMs into power trays in the Cisco NCS 6008 LCC. Although there are differences between the AC and DC PMs, they are installed using the same procedures. - Page 17 Installing Power Components Installing an AC or DC Power Module Figure 17: AC Power Module Front View Figure 18: AC Power Module Rear View The following figures show the front and rear of the DC PM. Installing Power Components...
- Page 18 Installing Power Components Installing an AC or DC Power Module Figure 19: DC Power Module Front View Figure 20: DC Power Module Rear View Each PM has three status LEDs located on the front left side of its faceplate. See the follow table for the meaning of each status LED.
- Page 19 Installing Power Components Installing an AC or DC Power Module Figure 21: AC and DC Power Module Status LEDs Input OK LED Output OK LED Fault LED Table 2: Power Module LED Status Indicator Lights LED Name Color Meaning Input OK Green •...
- Page 20 • ESD-preventive wrist strap • 6-inch, number-1 Phillips screwdriver • Torque screwdriver with number-1 Phillips bit and rated torque at 5.5 in-lb (0.62 N-m) • AC or DC PM • AC PM (Cisco PID PWR-3KW-AC-V2) • DC PM (Cisco PID PWR-2KW-DC-V2) Steps Note Power modules are keyed to prevent incorrect insertion.
- Page 21 Installing Power Components Installing a Power Module Slot Cover Step 4 Tighten the ejector lever screw to a nominal installation torque of 5.5 in-lb (0.62 N-m). Do not exceed a maximum installation torque of 10 in-lb (1.13 N-m). Figure 22: Installing a PM into a Power Tray Insert the PM Ejector lever Ejector lever screw...
- Page 22 • 6-inch, number-1 Phillips screwdriver • Torque screwdriver with number-1 Phillips bit and rated torque at 5.5 in-lb (0.62 N-m) • AC or DC PM • AC PM (Cisco PID PWR-3KW-AC-V2) • DC PM (Cisco PID PWR-2KW-DC-V2) Steps To install a PM slot cover in a power tray, perform the following steps:...
- Page 23 The AC power system requires single-phase AC input power to each PM. If you have 3-phase AC Delta or AC Wye at your equipment, a Cisco NCS 6008 LCC Power Distribution Unit (PDU) is required to convert 3-phase AC input power to single-phase AC input power (Cisco PID NCS-PDU-DELTA or NCS-PDU-WYE).
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Page 24: Installing Dc Input Power Cables
Installing Power Components Installing DC Input Power Cables Figure 24: AC Input Power Cords Connected to the Power Tray Installing DC Input Power Cables This section describes how to connect DC input power cables and install DC terminal block covers. The DC terminal block cover is one piece that covers all four DC connections per tray. - Page 25 Installing Power Components Prerequisites Prerequisites Note Before installing cabling on the power tray, make sure that the input power cables are not energized. Note Ensure that there is a readily accessible disconnect device incorporated in the building's installation wiring. Note The circuit breaker and fuse lockout procedures should follow the rules and regulations in the National Electrical Code (NEC) and any local codes.
- Page 26 Installing Power Components Steps Figure 26: DC Terminal Block Cover Installed on Rear of Power Tray Step 2 Verify the following resistance values: • The resistance between the positive and negative power terminal studs of each input must be greater than 90 Kohm. •...
- Page 27 Installing Power Components Powering On and Powering Off the LCC Step 8 If necessary, repeat these steps for all power trays. Powering On and Powering Off the LCC This section describes how to power on and power off an AC or DC powered system. Powering On the LCC Prerequisites •...
- Page 28 Installing Power Components Steps Figure 27: 1/0 Power ON/OFF Switches I/0 power ON/OFF switches Step 3 Verify that none of the Output OK LEDs on the front of the PMs installed in the tray are green. Step 4 If you have a DC power system installed, perform the following steps: a) Insert the power fuse at the BDFB or power plant to energize power tray 0, PM 0.
- Page 29 Installing Power Components Powering Off the LCC Step 8 Turn off the rear power breakers for power shelf 0 (PS0) and power shelf 1 (PS1). Step 9 Install all cards (RP, FC, and LC) in the LCC. For more information, see Installing Route Processor Cards, Line Cards, and Fabric Cards chapter.
- Page 30 Installing Power Components Steps Installing Power Components...