Cisco NCS 6000 User manual

Installing the Power Components
This chapter provides an overview of the AC and DC power systems and how to install the power modules
and input power cables into the Cisco NCS 6000 Fabric Card Chassis (FCC). For information about removing
power components, see the Removing the Power Components section.
•Power System Overview, page 1
•Installing the Power Modules and Input Power Cables, page 11
•Powering On and Powering Off the Fabric Card Chassis, page 23
Power System Overview
The Cisco NCS 6000 FCC 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 Regulatory Compliance and Safety Information for
the Cisco Network Convergence System 6000 Series Routers.
Prerequisites
Follow these precautions and recommendations when planning power connections to the FCC:
•Check the power at your site before installation to ensure that you are receiving clean power (free of
spikes and noise). Install a power conditioner, if necessary.
•Install proper grounding to avoid damage from lightning and power surges.
Installing the Fabric Card Chassis Ground Cable
The FCC has two safety earth ground connections. You can connect the central office ground system or interior
equipment grounding system to either of these grounding points on the rear side of the FCC. One chassis
ground is located near the top of the FCC and one chassis ground is located at the bottom of the FCC. These
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grounding points are also referred to as Network Equipment Building System (NEBS) bonding and grounding
point, and are provided to satisfy the Telcordia NEBS safety requirements.
Figure 1: NEBS Bonding and Grounding Points — Rear Side of the FCC
NEBS bonding and grounding point (lower)2NEBS bonding and grounding points (upper)1
Do not remove the FCC ground cable unless the FCC is being replaced.Caution
Required Tools and Equipment
You will need to provide the following tools and equipment:
•Number-2 Phillips screwdriver
•Ground lug
•Ground cable
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Installing the Fabric Card Chassis Ground Cable

•Crimping tool and lug specific die
•3/8-inch drive torque wrench rated to include 30 in-lb (3.39 N-m)
To ensure a satisfactory ground connection:
•One 180-degree angle (straight) grounding lug that has two M6 bolt holes with 0.63 inch (16 mm)
spacing center to center between them, and a wire receptacle able to accept a 2-6-AWG multistrand
copper wire.
•Two M6 bolts with integrated square cone locking washers (shipped pre-installed on the FCC, two at
each grounding point).
•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). The cable should be sized
according to local and national installation requirements.
The DC return of this system should remain isolated from the system frame and FCC (DC-I: Isolated DC
Return).
Note
Figure 2: 180-Degree Angle Straight Barrel Grounding Lug
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Installing the Fabric Card Chassis Ground Cable

Steps
To attach the ground cable to the FCC, follow these 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 one the NEBS grounding point (Figure 1: NEBS Bonding
and Grounding Points—Rear Side of the FCC ).
Figure 3: Attaching the Ground Cable to a NEBS Bonding and Grounding Point
Step 3 Use the torque wrench to tighten the bolts to a torque of 30 in-lb (3.39 N-m).
Step 4 Connect the other end of the ground cable to a grounding point at your site, according to site requirements.
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Installing the Fabric Card Chassis Ground Cable

AC Power System
Overview of the AC Power System
An AC-powered Cisco NCS 6000 FCC contains four AC power trays that are part of the FCC power enclosure
(Figure 1). The upper two power trays (PT0 and PT1) are referred to as PS0, and the lower two power trays
(PT2 and PT3) are referred to as PS1. Figure 3. Each set of power trays has a power control module (PCM)
with its own I/O power switch.
Each AC power tray has three slots for PMs. The AC power trays are field-replaceable (after power down),
however the PMs are hot-swappable.
Each inserted AC PM requires a single-phase, 50 to 60 Hz, 200 to 240 VAC input. Input current is variable
and based on facility minimum voltage. For N+N redundancy, power feeds A must power the upper two AC
power trays and power feeds B must power the lower two AC power trays (not all of the power module bays
need to be filled). This allows the system to balance its load across each set of power trays and across the
power modules within each tray.
The AC power system requires single-phase AC input power to each inserted PM. If you have a 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.
If you plan to use a three-phase AC PDU we recommend that you install three AC PMs in each AC power
tray to maintain a balanced three-phase power load.
Note
We recommend that you use appropriate short-circuit protection in compliance with national and local
electrical codes.
Note
Installing an AC Power Distribution Unit
The AC PDU converts three-phase AC input power to single-phase AC input power that connects directly to
the rear of each PM. The AC PDU includes either an AC Delta (Cisco PID NCS-PDU-DELTA) or AC Wye
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Installing the Power Components
AC Power System

(Cisco PID NCS-PDU-WYE) power interface, and has power input and power output cords entering and
exiting the box.
Figure 4: Cisco NCS-PDU
Output cord4Rack mounting ears1
Two PDUs5Rack tray2
Input cord3
For detailed information on AC PDUs, see the Cisco CRS 3-Phase AC Power Distribution Unit Installation
Guide.
Mounting the PDU
The AC PDU mounting bracket holds two AC PDUs. The mounting bracket can be attached to both sides of
the FCC by using the existing screws that hold the side panels on (Figure 5: AC PDU Bracket Attached to
the Side of the FCC). The PDUs are attached to the mounting brackets with four M5 screws per AC PDU.
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AC Power System

Optionally, you can mount the AC PDU in an external 19-inch rack by using six pan-head screws (Figure 6:
Rack Mounting the AC PDU in a 19-Inch Rack).
Figure 5: AC PDU Bracket Attached to the Side of the FCC
PDU bracket (chassis mount)2AC PDUs (one each side)1
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AC Power System

Figure 6: Rack Mounting the AC PDU in a 19-Inch Rack
Installing the Tie-Down Bar
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. The following figure shows holes for two 10-32 x 0.50 inch screws that are
pre-drilled on the FCC for attaching a tie-down bar.
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Installing the Power Components
AC Power System

The 19-inch tie-down bar and screws are not supplied by Cisco. You can order these parts from a
commercial vendor such as Panduit.
Note
Figure 7: 19-Inch Tie-Down Bar
Tie-down bar1
DC Power System
A DC-powered Cisco NCS 6000 FCC contains four DC power trays that are part of the FCC power enclosure
(Figure 1). The upper two power trays (PT0 and PT1) are referred to as power shelf 0 (PS0), and the lower
two power trays (PT2 and PT3) are referred to as power shelf 1 (PS1). Figure 3. Each set of power trays has
a power control module (PCM) with its own I/O power switch.
The DC power tray has four slots for PMs. The DC power trays are field-replaceable (after power down),
however the PMs are hot-swappable.
For N+N redundancy, “A”power feeds must power the upper two DC power trays and “B”power feeds must
power the lower two DC power trays (not all of the PM bays need to be filled). This allows the system to
balance its load across the two set of power trays and across the power modules within each tray.
The following table lists the DC input current and voltage specifications.
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DC Power System

Table 1: DC Input Current and Voltage Information
–48 VDC or –60 VDC (tolerance range: –40 to –72 VDC)
Nominal input voltage
50 A maximum at –48 VDC
40 A maximum at –60 VDC
60 A maximum at –40 VDC
Input line current
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
N-m). Each DC power cable is connected to a power tray with a torque of 45 to 55 in-lb (5.1 to 6.2 N-m).
The terminal block supports 4-6-AWG input wire.
The cable should be sized according to local and national installation requirements. Use only copper cable.
An “allpole”separation of the power source is not required. The DC PM is an isolated DC/DC converter
with no galvanic connection between “L+”and the FCC. In addition, the “L+”potentials of each PM are
isolated from each other.
Note
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DC Power System

The power supply terminal posts are centered 0.63 inches (16 mm) apart and are 1/4-20 thread. We recommend
that you use an appropriately sized 90-degree angle, industry-standard, dual-hole, standard barrel compression
lug.
Figure 8: 90-Degree Angle Standard Barrel Compression Lug
Installing the Power Modules and Input Power Cables
This section describes how to install the power modules and AC and DC power cables in the Cisco NCS 6000
FCC. We recommend that you perform the installation in the order outlined in this section.
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Installing the Power Modules and Input Power Cables

Ensure that the ground cable is installed on the FCC before you install the power modules and input power
cables. See the Installing the Fabric Card Chassis Ground Cable, on page 1.
Note
Installing an AC or DC Power Module
This section describes how to install an AC or DC power module (PM) into the power trays in the Cisco NCS
6000 FCC. Although there are differences between the AC and DC PMs, they are installed by using the same
procedures.
An AC-powered FCC supports up to 12 AC PMs (three per power tray). A DC-powered FCC supports
up to 16 DC PM (four per power tray).
Note
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Installing the Power Components
Installing an AC or DC Power Module

Each PM has three status LEDs located on the front left side of its faceplate (Figure 14: AC and DC Power
Module Power Module Status Indicators). See Table 2: Power Module LED Status Indicator Lights for the
meaning of each status LED.
Figure 9: AC Power Module — Front View
Figure 10: AC Power Module — Rear View
Figure 11: DC Power Module — Front View
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Installing an AC or DC Power Module

Figure 12: DC Power Module — Rear View
Prerequisites
•Installing the Exterior Cosmetics
•Installing the Fabric Card Chassis Ground Cable, on page 1
Do not install a power module into an AC or DC power tray until the power tray is securely screwed into
the power enclosure.
Caution
Required Tools and Equipment
•ESD-preventive wrist strap
•6-inch, Number1 Phillips-head screwdriver
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Installing the Power Components
Installing an AC or DC Power Module

•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
Power modules are keyed to prevent incorrect insertion into the power tray.Note
To install a PM into a power tray, follow these steps:
Step 1 Attach the ESD-preventive wrist strap to your wrist and connect its leash to the ESD jack on the front side of the FCC
(see Preventing Electrostatic Discharge). You can also connect the ESD-preventive wrist strap leash to any bare metal
surface on the FCC.
Step 2 Use two hands to support and guide the PM, and then slide it into the power tray.
Though a PM can be inserted into any empty PM bay in any power tray, during the initial installation, install a
PM into PM0 in PT0 first. Next, install PMs in ascending order into the remaining PM bays in PT0. Then, install
PMs in ascending order into the remaining power trays.
Note
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Installing the Power Components
Installing an AC or DC Power Module

Step 3 Rotate the ejector lever upwards to seat the PM into the power tray.
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 13: Installing a Power Module into a Power Tray — DC Power Tray Shown
Ejector lever screw3Power module1
Ejector lever2
Step 5 Fill the power tray, in PM ascending order, to the required configuration.
Step 6 If necessary, repeat these steps for the remaining power trays.
About the Power Module Status Indicators
The input-power-present LED on the AC and DC power modules provide a visual indication that voltage is
present across the input terminal connection.
•For DC power modules, the DC input LED lights up when the input voltage reaches within the acceptable
range.
•For AC power modules, the AC Input LED lights up when the input voltage reaches within the acceptable
range.
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Installing the Power Components
About the Power Module Status Indicators

Always disconnect power servicing the input power connection.Note
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.
Caution
Figure 14: AC and DC Power Module Power Module Status Indicators
Fault LED3Input OK LED1
Output OK LED2
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Installing the Power Components
About the Power Module Status Indicators

Table 2: Power Module LED Status Indicator Lights
MeaningColorLED Name
On: The input voltage is present and within regulation range.
Blinking: The input voltage is present but out of regulation range.
Off: The input voltage is not present.
GreenInput OK
On: The output voltage is on.
Blinking: The PM is in a power limit or Over Current condition.
Off: The output voltage is off.
GreenOutput OK
On: An internal fault is detected within the PM.
Off: No internal faults detected on the PM.
RedFault
Installing an AC or DC Power Module Slot Cover
This section describes how to install a PM slot cover into an empty PM slot on an AC or DC power tray.
Prerequisites
Before performing this task, you must remove the cosmetic grilles and install the PMs to the required
configuration in each power tray.
Required Tools and Equipment
•ESD-preventive wrist strap
•AC or DC PM slot cover (Cisco PID A9K-PEM-V2-FILR)
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Installing the Power Components
Installing an AC or DC Power Module Slot Cover

Steps
To install a PM slot cover in an AC or DC power tray, follow these steps:
Step 1 Attach the ESD-preventive wrist strap to your wrist and connect its leash to the ESD jack on the front side of the FCC
(see Preventing Electrostatic Discharge). You can also connect the ESD-preventive wrist strap leash to any bare metal
surface on the FCC.
Step 2 Align the PM slot cover with the empty PM slot in the power tray.
Step 3 Insert the two tabs on the top of the PM slot cover into the two holes on the top of the PM slot.
Step 4 Push in the top of the PM slot cover gently until it clicks into place.
Figure 15: PM Slot Cover on the Front of a Power Tray — DC Power Tray Shown
Installing AC Input Power Cords
This section describes how to connect the AC input power cords to the power modules and includes the
following topics:
Prerequisites
Ensure that there is a readily accessible disconnect device incorporated in the building's installation wiring.
Before connecting AC input power cords to the power system, make sure that the input power cords are
not energized.
Caution
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Installing the Power Components
Installing AC Input Power Cords

The circuit breaker and fuse lockout procedures should follow the rules and regulations in the National
Electrical Code (NEC) and any local codes.
Caution
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 6000 Series 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 Cisco
PID NCS-PDU-WYE). For more information, see the Cisco CRS 3-Phase AC Power Distribution Unit
Installation Guide.
Note
Required Tools and Equipment
•6-inch, Number 1 Phillips-head screwdriver
•AC input power cords, depending on the locale (Appendix B, “System Product IDs.”)
Steps
To install the AC input power cords, follow these steps:
Step 1 On the rear of the FCC, insert the cord plug into the cord clamp following the labeling on the phase assignments from
the PDU or the labeling on the single-phase power cords.
Step 2 Use the screwdriver to secure the screw that clamps the cord plug in place.
Figure 16: AC Input Power Cords Connected to the Power Tray
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Installing the Power Components
Installing AC Input Power Cords