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Cisco CRS-16 DC Installing And Removing

Cisco CRS-16 DC Installing And Removing

Installing and removing power components
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Installing and Removing Power Components
This chapter provides instructions on how to install and remove Cisco CRS Carrier Routing System 16-Slot
line card chassis power components.
This chapter presents the following topics:
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Power Systems Overview
There are two options for power systems: the fixed configuration power system and the modular configuration
power system. Power components are not interchangeable between the fixed and modular configuration power
system.
• Fixed configuration power system
Consists of two power shelves, DC power entry modules (PEMs) or AC rectifiers, and alarm modules. It is
available in versions for DC and AC power supplies. The AC version requires either 3-phase AC-Delta or
3-phase AC-Wye input power to the power shelves. It provides power sharing across power zones. The fixed
configuration power system includes SNMP MIBS and XML support.
• Modular configuration power system
Consists of two power shelves, AC or DC power modules (PMs), and alarm modules. It is available in versions
for DC and AC power supplies. However, unlike the fixed configuration power system, the AC version of
the modular configuration power system requires single-phase AC input power to the power shelves; there is
no 3-phase AC-Wye or AC-Delta. If you have 3-phase AC Delta or AC Wye at your equipment, a Cisco CRS
power distribution unit (PDU) will be required to convert 3-phase AC input power to single-phase AC input
power for the power shelf. At the shelf level, the power system provides 2N redundancy; the PMs themselves
Power Component Information Common to the Two Types of Power Systems
Installing and Remove Fixed Configuration Power Components
Installing and Removing Modular Configuration Power Components
Converting a Chassis from Fixed Configuration Power to Modular Configuration Power
Power Systems Overview, on page 1
Power Component Information Common to the Two Types of Power Systems, on page 2
Installing and Remove Fixed Configuration Power Components , on page 15
Installing and Removing Modular Configuration Power Components, on page 43
Converting a Chassis from Fixed Configuration Power to Modular Configuration Power , on page 82
Installing and Removing Power Components
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Summary of Contents for Cisco CRS-16 DC

  • Page 1 AC input power to the power shelves; there is no 3-phase AC-Wye or AC-Delta. If you have 3-phase AC Delta or AC Wye at your equipment, a Cisco CRS power distribution unit (PDU) will be required to convert 3-phase AC input power to single-phase AC input power for the power shelf.
  • Page 2 XML support. Note In a modular configuration AC power system, PDU refers to the Cisco CRS PDU which is required to convert 3-phase AC-Wye or AC-Delta input power to single-phase AC input power for the modular configuration AC power shelf. For further information, see the...

  • Page 3: Bonding And Grounding Guidelines

    Installing and Removing Power Components Bonding and Grounding Guidelines Caution The chassis might have more than one power connection. All connections must be removed to de-energize the chassis. Statement 1028 Bonding and Grounding Guidelines The router chassis has a safety earth ground connection in conjunction with power cabling to the fixed configuration power shelves.
  • Page 4 Installing and Removing Power Components Bonding and Grounding Guidelines Figure 1: NEBS Bonding and Grounding Points Modular Configuration DC Power Shown Chassis ground cable NEBS bonding and grounding points Note The previous figure shows a 45-degree grounding. A 180-degree (straight) grounding lug can also be used. Caution Do not remove the chassis ground cable unless the chassis is being replaced.

  • Page 5: Installing The Chassis Ground Cable

    Installing and Removing Power Components Installing the Chassis Ground Cable Figure 2: Power Shelf Grounding Brackets Modular Configuration DC Power Shown Chassis ground cable Two M6 hex nuts attaching grounding L-bracket to shelf grounding bracket Two M6 hex bolts attaching ground lug to chassis Grounding L-bracket Shelf grounding bracket Four M6 hex bolts attaching shelf grounding bracket...
  • Page 6 Installing and Removing Power Components Prerequisites Prerequisites To ensure a satisfactory ground connection, you need the following parts: • One grounding lug that has two M6 bolt holes with 0.63 inches (5/8 inch) (1.60 cm) of spacing center to center between them and a 6 AWG or larger multi strand copper wire. The grounding lug used can be either a 180 degree (straight) lug or a 45-degree lug.

  • Page 7: Dc Power Systems

    • Although we recommend at least 6 AWG multistrand copper ground cable, the actual cable diameter and length depends on the router location and site environment. This cable is not available from Cisco Systems; it is available from any commercial cable vendor. The cable should be sized according to local and national installation requirements.
  • Page 8 The length of the cables depends on the router location. These cables are not available from Cisco Systems; they are available from any commercial vendor. • DC power cables must be terminated by cable lugs at the power shelf end. The lugs should be dual hole and able to fit over M6 terminal studs at 0.63 in.
  • Page 9 Installing and Removing Power Components Modular Configuration DC Power Sometimes, the source DC cable leads might have a positive (+) or a negative (–) label, but you must verify the polarity by measuring the voltage between the DC cable leads. When making the measurement, the positive (+) lead and the negative (–) lead must always match the (+) and (–) labels on the power shelf.
  • Page 10 Installing and Removing Power Components Modular Configuration DC Power Each modular configuration DC power shelf supports up to eight DC PMs. The power shelves and DC PMs are field replaceable. Note Although each modular configuration DC power shelf can support up to eight DC PMs, the modular configuration DC power shelf is shipped with six DC PMs per shelf.
  • Page 11 Installing and Removing Power Components Input-Power-Present LEDs The power supply terminal posts are centered 0.63 inches (5/8 inch) (1.60 cm) apart and are M6-threaded. We recommend that you use an appropriately sized 180-degree angle (straight) industry standard 2-hole, standard barrel compression lug, as shown in this figure. Figure 8: DC Power Cable Lug The power shelf grounding is accomplished by installing an external ground bracket between the power shelves and attached to the chassis.
  • Page 12 Installing and Removing Power Components Input-Power-Present LEDs Figure 9: Input-Power-Present LEDs Fixed Configuration DC Power Shown This figure shows the input-power-present LEDs on the rear of the modular configuration DC power shelf. Installing and Removing Power Components...

  • Page 13: Ac Power Systems

    Installing and Removing Power Components AC Power Systems Figure 10: Input-Power-Present LEDs Modular Configuration DC Power Shown The input-power-present LED starts to light up when the input voltage reaches –20 VDC and the LED gets brighter as voltage increases; the input-power-present LED is fully lit when the input voltage reaches –38 VDC.
  • Page 14 3-phase AC power shelf are available to provide either an AC Delta or an AC Wye input configuration. Each of the AC power shelf versions has a different Cisco part number to distinguish the Wye from the Delta configuration. The AC connections to the LCC are made to terminal blocks on the AC power shelves that have been hard wired for a Wye or Delta configuration.
  • Page 15 Installing and Remove Fixed Configuration Power Components Note If you have a Cisco CRS 3-Phase AC PDU installed, six AC PMs are required to be installed in each LCC AC modular configuration power shelf to maintain a balanced 3-phase power load,.
  • Page 16 • 1/4-in. x 6-in. long slotted screwdriver • Fixed configuration AC or DC power shelf • AC Delta power shelf (Cisco product number CRS-16-LCC-PS-ACD=), or • AC Wye power shelf (Cisco product number CRS-16-LCC-PS-ACW=), or • DC power shelf (Cisco product number CRS-16-LCC-PS-DC=)
  • Page 17 Installing and Removing Power Components Removing a Fixed Configuration Power Shelf SUMMARY STEPS 1. Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis. 2.
  • Page 18 Installing and Removing Power Components Prerequisites The power shelf is installed and removed from the front (PLIM) side and plugs into the chassis power interface connector panel. Although differences exist among the different power shelf types (AC Wye, AC Delta, and DC), they are installed and removed in the same manner.
  • Page 19 Installing and Removing Power Components Installing Fixed Configuration AC Power Cords Step 3 For AC, at the AC service circuit breaker box open all associated equipment circuit breakers for shelf(s) to be removed. Use the lockout and tag procedures per your local practices. Unplug the power cords from the associated power shelves and remove.
  • Page 20 Installing and Removing Power Components Required Tools and Equipment Required Tools and Equipment You need the following tools to perform this task: • ESD-preventive wrist strap • 10-mm socket wrench • Stripping tool to remove power cable conductor insulation • 1/4-in. x 6-in. long slotted screwdriver •...
  • Page 21 Installing and Removing Power Components AC Delta Power Shelf Note We recommend that you rotate the L1, L2, and L3 cable conductor connection for the two power shelves to improve system availability due to common phase outage. Note The ground cable conductor connector nuts have a 20 in.-lb (2.26 N-m) torque value, and the power cable conductor connector screws on the terminal block have a 9 in.-lb (1.04 N-m) torque value.
  • Page 22 Installing and Removing Power Components Steps Note The ground cable conductor connector screws have a 20 in.-lb (2.26 N-m) torque value, and the power cable conductor connector screws on the terminal block have a 9 in.-lb (1.04 N-m) torque value. Steps To wire a fixed configuration AC power shelf, perform the following steps: SUMMARY STEPS...
  • Page 23 Installing and Removing Power Components Removing Fixed Configuration AC Power Cords Step 7 Insert the AC power cord and tighten the cable bushing lock nut. Step 8 Remove the M6 nut from the ground connection (green cable conductor is typically ground), attach the ground cable conductor, and tighten the nut (ground cable conductor has a closed-ring connector) to a torque value of 20 in.-lb (2.26 N-m).
  • Page 24 Installing and Removing Power Components AC Delta Power Shelf AC Delta Power Shelf The rear of the AC Delta power shelf with the rear cover removed is shown in Figure 13: AC Delta Power Shelf Rear, on page 21. For more information on AC Wye power shelf, see AC Delta Power Shelf, on page section.
  • Page 25 Installing and Removing Power Components Prerequisites The figure shows the cable wiring for the fixed configuration power shelf. Figure 14: DC Power Shelf Cable Wiring for Fixed Configuration Power Shelf Note When wiring the power shelf, be sure to connect the ground cable first. Prerequisites Before performing this task, ensure that both power shelves are installed in the chassis.
  • Page 26 Installing and Removing Power Components Steps Steps To wire the fixed configuration DC power shelf, perform the following steps: SUMMARY STEPS 1. Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis.
  • Page 27 Installing and Removing Power Components Removing Fixed Configuration DC Power Shelf Wiring What to do next After the power shelf wiring has been connected, the DC PEMs can be installed. For more information, see Installing an AC Rectifier or DC PEM.
  • Page 28 Installing and Removing Power Components Installing an AC Rectifier or DC PEM When a cable is removed from the rear of the fixed configuration DC power shelf, we recommend that it should Note be wrapped with standard black electrical tape. Step 5 Replace the terminal block cover.
  • Page 29 You need the following tool and parts to perform this task: • ESD-preventive wrist strap • Fixed configuration DC PEM or AC power rectifier • DC PEM (Cisco product number CRS-16-DC-PEM=), or • AC rectifier (Cisco product number CRS-16-AC-RECT=) Steps...
  • Page 30 Removing an AC rectifier or DC PEM This section describes how to remove a DC PEM or AC rectifier from the Cisco CRS 16-slot LCC. Although differences exist among the DC PEMs and AC rectifiers (AC Wye, AC Delta, and DC), they are removed in the same manner.
  • Page 31 Installing and Removing Power Components Installing a Fixed Configuration Alarm Module DETAILED STEPS Step 1 Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis. Step 2 While facing the front (PLIM) side of the chassis, pull the power tab on the bottom front of the module out to the OFF position.
  • Page 32 Before performing this task, remove the upper grille on the front (PLIM) side of the chassis, if installed. Required Tools and Equipment • ESD-preventive wrist strap • 6-in long number 1 Phillips screwdriver • Fixed configuration alarm module (Cisco product number CRS-16-ALARM=) Steps To install a fixed configuration alarm module, perform the following steps: SUMMARY STEPS 1.
  • Page 33 Installing and Removing Power Components Removing a Fixed Configuration Alarm Module 3. Seat the alarm module in the power shelf backplane by pressing it firmly into the chassis backplane connector. 4. Use the screwdriver to turn the captive screw at the bottom of the alarm module clockwise to seat the alarm module connectors in the connectors on the power shelf interface panel.
  • Page 34 Installing and Removing Power Components Powering Up and Down a Chassis with Fixed Configuration AC Power SUMMARY STEPS 1. Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis. 2.
  • Page 35 Installing and Removing Power Components Prerequisites Figure 17: LCC Front (PLIM) Side Slot Numbers Prerequisites Before performing this task, you must install and wire the power shelves, and install the power modules (AC rectifiers or DC PEMS), and alarm modules. See Installing a Fixed Configuration Power Shelf, Installing an...
  • Page 36 Installing and Removing Power Components Steps SUMMARY STEPS Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis. Make sure that the safety ground wiring is connected.
  • Page 37 Installing and Removing Power Components Steps DETAILED STEPS Step 1 Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis. Step 2 Make sure that the safety ground wiring is connected.
  • Page 38 Installing and Removing Power Components Steps Figure 17: LCC Front (PLIM) Side Slot Numbers, on page 35 figure for reference. Step 16 Turn the I/O switches on all power rectifiers and both power shelves to the OFF position. Verify that no LEDs on the power rectifiers are active.
  • Page 39 Installing and Removing Power Components Power Up and Power Down a Chassis with Fixed Configuration DC Power Power Up and Power Down a Chassis with Fixed Configuration DC Power This section describes how to power up and power down an LCC with fixed configuration DC power shelves installed.
  • Page 40 Installing and Removing Power Components Steps Make sure all boards (RPs, PLIMs, Line Cards, and FCs) are pulled-out and disconnected from the backplane. Energize the facility breaker to PEM 0, input 1 on the upper power shelf, PS0. Measure the voltage at the input terminal block and verify that the DC voltage between the positive and negative terminals is between 42 VDC and 72 VDC.
  • Page 41 Installing and Removing Power Components Steps Step 8 Turn the facility breaker to the OFF position. Step 9 Repeat Step 7 and 8 and for each of the remaining five DC inputs on the upper power shelf (PS0). Step 10 Repeat Step 7 and 8 for each of the six DC inputs on the lower power shelf (PS1).
  • Page 42 Installing and Removing Power Components Converting from One Fixed Configuration Power System to Another LED Name Color Function or Meaning Yellow PEM is in an over temperature condition and shutdown has occurred. CBREAKER TRIP Yellow PEM I/O switch is in the OFF position. Converting from One Fixed Configuration Power System to Another This section describes how to convert from one fixed configuration power system to another (either from fixed AC to fixed DC or from fixed DC to fixed AC).
  • Page 43 This section describes how to install the modular configuration AC or DC power shelves in the LCC. For complete information on regulatory compliance and safety, see Regulatory Compliance and Safety Information for the Cisco CRS. Caution Do not use the handles for lifting or supporting the power shelf, because this could severely damage the handles.
  • Page 44 Installing and Removing Power Components Installing a Modular Configuration Power Shelf Caution Do not bend the handles sideways during any part of the installation process. Although there are differences between the AC and DC power shelves, they are installed and removed using the same procedures.
  • Page 45 Installing and Removing Power Components Prerequisites The front and rear views of the modular configuration AC power shelf are shown in the next figures. Figure 20: AC Modular Configuration Power Shelf Front View Figure 21: AC Modular Configuration Power Shelf, Rear View Prerequisites Remove the upper grilles from both the front (PLIM) and rear (MSC) sides of the chassis, if installed.
  • Page 46 • 6-in. long number 1 Phillips screwdriver • 10-mm 6 pt. combination wrench • Modular configuration AC or DC power shelf • AC power shelf (Cisco product number CRS-16LCC-PSH-AC=), or • DC power shelf (Cisco product number CRS-16LCC-PSH-DC=) Steps To install the modular configuration power shelf, perform the following steps: SUMMARY STEPS 1.
  • Page 47 Installing and Removing Power Components Steps Figure 22: Loosening Bolts on Rear of Chassis Step 2 Install the mounting blocks on the left and right sides of the chassis. The left side is shown in the next figure. A second mounting block is located on the right side.
  • Page 48 Installing and Removing Power Components Steps Because of the weight of the power shelf and the rack-mounted height of the chassis, you should be especially Caution careful while lifting and removing the power shelf. To prevent injury, keep your back straight and lift with your legs, not your back.
  • Page 49 Installing and Removing Power Components Steps Figure 25: Shelf Handles Hooked Around Pins Ejector handles section that fits around mounting pins Mounting pins that are permanently installed in the chassis and cannot be moved or removed Step 6 Using the wrench, tighten the two bolts that attach the rear of the power shelf to the rear of the chassis. Step 7 Using the screwdriver, turn the captive screws at the top of the left and right handles.
  • Page 50 Installing and Removing Power Components Removing a Modular Configuration Power Shelf Top mounting screw in handle. Holes for the screw that attaches the power shelf to the mounting block though the handle. What to do next After the modular configuration power shelves are installed in the chassis, install the grounding lug and brackets, and AC or DC power shelf wiring.
  • Page 51 Installing and Removing Power Components Steps 4. Grasping both handles simultaneously, pull both the left and right handles down at the same time to pull the shelf partially out of the chassis. 5. When the shelf is partially out of the chassis and the ejector handles are away from the pins, hand-tighten the handle screws back into the shelf.
  • Page 52 Installing and Removing Power Components Steps Figure 28: Unscrewing Power Shelf Ejector Handle Top mounting screw in handle. Holes for the screw that attaches the power shelf to the mounting block though the handle. Step 3 Using the screwdriver, unscrew captive screw on the left and right handles (see previous figure). The handles will fall down and slightly away from the shelf.
  • Page 53 Installing and Removing Power Components Installing Power Shelf Grounding Brackets Step 5 When the shelf is partially out of the chassis and the ejector handles are away from the pins, hand-tighten the handle screws back into the shelf. Step 6 Slide out the shelf out so that two people can safely remove it and carefully set it down on a flat surface.
  • Page 54 Installing and Removing Power Components Steps 3. Attach the shelf grounding bracket to both power shelves using the four M6 hex head bolts provided. Do not tighten (see the next figure). 4. Attach the grounding L-bracket to the shelf grounding bracket using the two M6 hex nuts provided. Do not tighten (see the next figure).
  • Page 55 Installing and Removing Power Components Steps Figure 30: Grounding Brackets Chassis ground cable Two M6 hex nuts attaching grounding L-bracket to shelf grounding bracket (Step 4) Two M6 hex bolts attaching ground lug to chassis Grounding L-bracket ( Step 5) Shelf grounding bracket (Step 3) Four M6 hex bolts attaching shelf grounding bracket to power shelves (Step 3)
  • Page 56 Installing and Removing Power Components Removing Power Shelf Grounding Brackets Step 6 Using the torque wrench, tighten the four M6 hex bolts attaching the grounding bracket to the power shelves to a torque of 20 in.-lb (2.26 N-m). Step 7 Using the torque wrench, tighten the two M6 hex nuts attaching the grounding L-bracket to the power shelf to a torque of 20 in.-lb (2.26 N-m).
  • Page 57 Installing and Removing Power Components Steps 9. If the chassis is being replaced, use the 10-mm socket wrench to remove the ground cable from the grounding point on top of the chassis rear (MSC) side panel. DETAILED STEPS Step 1 Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the rear (MSC) side of the chassis or a bare metal surface on the chassis.
  • Page 58 This section describes how to connect the DC input wiring to the rear of the power shelf and install the DC terminal block covers and AC cords on the LCC. For complete information on regulatory compliance and safety, see Regulatory Compliance and Safety Information for the Cisco CRS Carrier Routing System . Installing Modular Configuration DC Power Shelf Wiring This section describes how to connect the DC input wiring to the rear of the power shelf and install the DC terminal block covers on the LCC.
  • Page 59 Installing and Removing Power Components Prerequisites Figure 32: DC Power Shelf Cable Wiring for Modular Configuration Power Shelf Note When wiring the power shelf, be sure to connect the chassis ground cable and install auxiliary grounding brackets first. For more information, see Bonding and Grounding Guidelines Installing Power Shelf Grounding...
  • Page 60 Installing and Removing Power Components Steps • Torque wrench with 10-mm 6 pt. socket and rated accuracy at 20 in.-lb (2.26 N-m) Steps To wire the modular configuration DC power shelf, perform the following steps: SUMMARY STEPS 1. Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis.
  • Page 61 Installing and Removing Power Components Required Tools and Equipment Figure 33: DC Terminal Block Cover Caution Install the terminal block cover after the input wiring is installed, but before power has been energized. Required Tools and Equipment You need the following tools to perform this task: •...
  • Page 62 Installing and Removing Power Components Steps DETAILED STEPS Step 1 Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis. Step 2 Align the DC terminal block cover with the cover latch tab.
  • Page 63 (MSC) side of the chassis, if installed. If you have AC Delta or AC Wye at your equipment, ensure that two Cisco CRS PDUs are installed to convert 3-phase AC input power to single-phase AC input power for the power shelves. For more information, see the Cisco CRS 3-Phase AC Power Distribution Unit Installation Guide.
  • Page 64 Insert the cord into the cord clamp. Note If you have a Cisco CRS PDU installed, the AC power cords must be installed as labeled. For further information, see Cisco CRS 3-Phase AC Power Distribution Unit Installation Guide. Figure 35: Cord Being Inserted into Cord Clamp...
  • Page 65 Installing and Removing Power Components Removing Modular Configuration DC Power Shelf Wiring Removing Modular Configuration DC Power Shelf Wiring This section describes how to remove the DC power shelf wiring from the rear of the modular configuration DC power shelf. Prerequisites Before performing this task, power down and remove DC PMs and the alarm module in the shelf you want to disconnect.
  • Page 66 Installing and Removing Power Components Steps Figure 36: Removing the Terminal Block Cover DC terminal block. Opening to align over mounting pins Screw to tighten (pre-installed on terminal block) Opening to align over mounting pins Screwdriver securing the cover Cover latch tab Terminal block cover Step 3 Remove the terminal block cover.
  • Page 67 Installing and Removing Power Components Removing Modular Configuration AC Power Shelf Wiring When a cable is removed from the rear of the DC modular configuration power shelf, we recommend that it Note should be wrapped with standard black electrical tape. Step 5 Replace the terminal block cover.
  • Page 68 Installing and Removing Power Components Installing a Modular Configuration Alarm Module Figure 37: Cord Being Removed from Cord Clamp Screw that secures the cord clamp Cord to be inserted into clamp In the figure, the AC cord clamp shown on the left was available until June 2011, and the AC cord clamp shown Note on the right is available from June 2011 onwards.
  • Page 69 Required Tools and Equipment • ESD-preventive wrist strap • 6-in. long number 1 Phillips screwdriver • Modular configuration alarm module (Cisco product number CRS-16-ALARM-C=) Steps To install the alarm module, perform the following steps: SUMMARY STEPS 1. Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis.
  • Page 70 Installing and Removing Power Components Removing a Modular Configuration Alarm Module 2. Slide the alarm module into the top left bay on the power shelf, with the display on the right side and the handle on the left side. 3. Hand tighten the two captive screws on the alarm module. 4.
  • Page 71 Installing and Removing Power Components Installing a Modular Configuration Power Module DETAILED STEPS Step 1 Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis. Step 2 Remove the upper grille on the front (PLIM) side of the chassis.
  • Page 72 • 6-in. long number 1 Phillips screwdriver • Torque screwdriver with number 1 Phillips bit and rated accuracy at 5.5 in.-lb (0.62 N-m) • Modular configuration AC or DC PM • AC PM (Cisco product number CRS-PM-AC=), or • DC PM (Cisco product number CRS-PM-DC=) Steps...
  • Page 73 Installing and Removing Power Components Removing a Modular Configuration Power Module Figure 40: Securing the PM to the Shelf Step 4 Fill the power shelf to the required configuration. What to do next After the modular configuration PMs are installed in the chassis, install power module slot covers in empty PM slots, if any.
  • Page 74 Installing and Removing Power Components Prerequisites Prerequisites Before performing this task, you must first remove the upper grille on the front (PLIM) side of the chassis, if installed. Required Tools and Equipment You need the following tools to perform this task: •...
  • Page 75 You need the following tools to perform this task: • ESD-preventive wrist strap • AC or DC PM Slot Cover • AC PM slot cover (Cisco product number 700–29097–xx), or • DC PM slot cover (Cisco product number 700–29098–xx) Steps...
  • Page 76 Installing and Removing Power Components Removing a Power Module Slot Cover Figure 41: Installing PM Slot Cover What to do next After the PM slot covers are installed in the chassis, install the upper grille on the front (PLIM) side of the chassis.
  • Page 77 Installing and Removing Power Components Required Tools and Equipment Required Tools and Equipment You need the following tools to perform this task: • ESD-preventive wrist strap Steps To remove a PM slot cover from a power shelf, perform the following steps: SUMMARY STEPS 1.
  • Page 78 Installing and Removing Power Components Power Up a Chassis with Modular Configuration Power The figure shows the front (PLIM) side of the LCC with a modular configuration power system installed. Figure 42: LCC Front (PLIM) Side Slot Numbers Power Up a Chassis with Modular Configuration Power This section describes how to power up a chassis with modular configuration AC or DC power shelves installed.
  • Page 79 Installing and Removing Power Components Steps SUMMARY STEPS Make sure that the facility power breakers for the upper (Power A) and lower (Power B) power shelves are in the OFF position. Make sure that I/O switches on the rear of the upper (Power A) and lower (Power B) power shelves are in the OFF position.
  • Page 80 Installing and Removing Power Components Power Down a Chassis with Modular Configuration Power Step 8 Turn the I/O switch at the rear of both upper power shelves (Power A and Power B) to the OFF position. Verify that none of the Output_OK LEDs on the PMs installed in the shelf are green. Step 9 Install all boards (RPs, PLIMs, SFCs, and FPs) in the chassis.
  • Page 81 Installing and Removing Power Components Converting from One Modular Configuration Power System to Another Table 5: PM LED Status Indicator Lights Modular Configuration Power LED Name Color Function or Meaning Input_OK Green On: The input voltage is present and within regulation range. Blinking: The input voltage is present but out of regulation range.
  • Page 82 If you are converting from DC to AC power, and if you have AC Delta or AC Wye at your equipment, a Note Cisco CRS PDU will be required to convert 3-phase AC input power to single-phase AC input power for the power shelf. For more information, see the Cisco CRS 3-Phase AC Power Distribution Unit Installation Guide.
  • Page 83 Installing and Removing Power Components Steps SUMMARY STEPS 1. Remove the alarm modules. 2. Remove the AC rectifiers or DC PEMs. 3. Unplug the AC power cords or remove the DC fusing from the power source. Remove the AC or DC wiring from the fixed configuration power shelf.
  • Page 84 Installing and Removing Power Components Steps Installing and Removing Power Components...

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Crs-16 ac