Technical Documentation

Removing Components from the T1600 Chassis

To make the router light enough to install manually, you first remove most components from the chassis. These procedures for removing components from the chassis are for initial installation only, and assume that you have not connected power cables to the router. The following procedures describe how to remove components from the chassis, first from the rear and then from the front:

Removing the T1600 DC Power Supplies

The power supplies are located at the rear of the chassis below the SIBs. Each three-input 240-A DC power supply weighs approximately 25 lb (11.3 kg). Each four-input 240-A DC power supply weighs approximately 26.6 lb. (12.0 kg).

To remove the power supplies, starting with the upper power supply:

Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
Switch the circuit breakers on the power supply faceplate to the off position (O). We recommend this even though the power supplies are not connected to power sources.
Loosen the captive screws on the lower corners of the power supply faceplate completely.
Twist the ejector handles on the upper corners of the faceplate counterclockwise to unseat the power supply.
Grasp the handle on the power supply faceplate and pull firmly to start removing the power supply. Slide it halfway out of the chassis (see Figure 1).
Place one hand underneath the power supply to support it and slide it completely out of the chassis.
Caution: Be prepared to support the full weight of the power supply as you remove it from the router.
Repeat the procedure for the other power supply.

Figure 1: Removing a Three-Input 240-A DC Power Supply Before Installing the Router

Figure 2: Removing a Four-Input 240-A Power Supply Before Installing the Router

Removing the T1600 AC Power Supplies

The power supplies are located at the rear of the chassis below the SIBs. Each three-phase delta AC power supply weighs approximately 25 lb (11.3 kg). Each three-phase wye AC power supply weighs approximately 26.6 lb. (12.0 kg).

To remove the AC power supplies, starting with the upper power supply:

Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
Switch the power switch on the power supply faceplate to the standby position.. We recommend this even though the power supplies are not connected to power sources.
Loosen the captive screws on the lower corners of the power supply faceplate completely.
Twist the ejector handles on the upper corners of the faceplate counterclockwise to unseat the power supply.
Grasp the handle on the power supply faceplate and pull firmly to start removing the power supply. Slide it halfway out of the chassis (see Figure 1).
Place one hand underneath the power supply to support it and slide it completely out of the chassis.
Caution: Be prepared to support the full weight of the power supply as you remove it from the router.
Repeat the procedure for the other power supply.

Figure 3: Removing a Three-Phase Delta AC Power Supply Before Installing the Router

Figure 4: Removing a Three-Phase Wye AC Power Supply Before Installing the Router

Removing the T1600 SIBs

Five SIBs are installed in the router. The SIBs are located in the rear of the chassis in the slots marked SIB0 through SIB4. Each T1600-SIB weighs approximately 6.5 lb (3 kg). Each TXP-T1600 SIB weighs approximately 10.2 lb (4.6 kg).

To remove the SIBs (see Figure 5):

Place an electrostatic bag or antistatic mat on a flat, stable surface.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
Loosen the captive screws (using a Phillips (+) screwdriver, number 2) on the ejector handles on each side of the SIB faceplate.
Flip the ejector handles outward to unseat the SIB.
Grasp both ejector handles, pull firmly, and slide the SIB about three-quarters of the way out of the chassis.
Place one hand underneath the SIB to support it and slide it completely out of the chassis. Place it on the antistatic mat.
Caution: Do not stack hardware components on one another after you remove them. Place each component on an antistatic mat resting on a stable, flat surface.
Repeat the procedure for each of the remaining SIBs.

Figure 5: Removing a SIB

Removing the T1600 Control Boards

The router can have one or two control boards. They are located in the upper rear of the chassis in the slots marked CB0 and CB1. Each T-CB and LCC-CB weighs approximately 5 lb (2.3 kg).

To remove the control boards (see Figure 6):

Place an electrostatic bag or antistatic mat on a flat, stable surface.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
Loosen the captive screws on the ejector handles on both sides of the control board faceplate.
Flip the ejector handles outward to unseat the control board.
Grasp the ejector handles and slide the control board about halfway out of the chassis.
Place one hand underneath the control board to support it and slide it completely out of the chassis. Place it on the antistatic mat.
Caution: Do not stack hardware components on one another after you remove them. Place each component on an antistatic mat resting on a stable, flat surface.
Repeat the procedure for the second control board.

Figure 6: Removing a Control Board

Removing the T1600 SCGs

The router can have one or two SCGs installed. The SCGs are located in the upper rear of the chassis, above the control boards and Routing Engines. Each SCG weighs approximately 1.9 lb (0.9 kg).

To remove the SCGs (see Figure 7):

Place an electrostatic bag or antistatic mat on a flat, stable surface.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site..
Loosen the captive screws on the edges of the SCG faceplate.
Grasp the SCG by the handle on the faceplate and slide it out of the chassis.
Place the SCG on the antistatic mat.
Repeat the procedure for the second SCG.

Figure 7: Removing an SCG

Removing the T1600 Standard or Quiet Rear Fan Tray

The rear fan tray is mounted vertically on the right side of the rear of the chassis. The standard or quiet rear fan tray weighs about 10 lb (4.5 kg).

To remove the standard rear fan tray (see Figure 8):

Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
Loosen the captive screws on the top and bottom of the fan tray faceplate.
Grasp the handles and pull the fan tray halfway out of the chassis.
Place one hand under the fan tray to support it and pull the fan tray completely out of the chassis.

Figure 8: Removing the T1600 Rear Fan Tray

Removing the T1600 Front Cable Management System

The front cable management system is located below the FPC card cage. The cable management system weighs approximately 5 lb (2.3 kg).

To remove the front cable management system:

Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
Using a 3/8-in. nut driver, unscrew the nuts on the corners of the cable management system.
Grasp the bottom of the cable management system and pull it straight out from the studs on the front of the chassis.

Removing the T1600 Standard or Quiet Front Fan Trays

The upper front fan tray is located above the FPC card cage, and the lower front fan tray is located below the air filter. Each standard front fan tray weighs about 18.6 lb (8.4 kg). Each quiet front fan tray weighs about 17.8 lb (8.1 kg).

To remove the standard front fan trays (see Figure 9):

Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
Loosen the captive screws on the corners of the faceplate of one of the fan trays.
Grasp the handles and pull the fan tray halfway out of the chassis.
Place one hand under the fan tray to support it and pull the fan tray completely out of the chassis.
Repeat the procedure to remove the remaining front fan tray.

To remove a quiet upper front fan tray (see Figure 10):

Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
Loosen the captive screws on the corners of the fan tray faceplate.
Grasp the handles on the faceplate, and pull the fan tray out of the chassis approximately 1 to 3 inches.
Press the two latches located on each side of the fan tray up to release the fan tray from the chassis.
Place one hand under the fan tray to support it and pull the fan tray completely out of the chassis.

To remove the quiet lower front fan tray (see Figure 11):

Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
Loosen the captive screws on the corners of the fan tray faceplate.
Grasp the handles, and pull the fan tray out of the chassis approximately 1 to 3 inches.
Press the two latches located on each side of the fan tray up to release the fan tray from the chassis.
Place one hand under the fan tray to support it and pull the fan tray completely out of the chassis.

Figure 9: Removing a Standard Front Fan Tray

Figure 10: Removing the Quiet Upper Front Fan Tray

Figure 11: Removing the Quiet Lower Front Fan Tray

Removing the T1600 FPCs

The router holds up to eight FPCs, which are installed vertically in the front of the router. An empty FPC weighs approximately 25 lb (11.3 kg) and an FPC with PICs installed can weigh up to 37 lb (14.5 kg).

Each FPC slot not occupied by an FPC must be covered by an FPC blank panel. An FPC blank panel weighs 7 lb (3 kg).

To remove an FPC (see Figure 12):

Place an electrostatic bag or antistatic mat on a flat, stable surface.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
Before removing the FPCs, record their location in the chassis so that you can reinstall each FPC in the correct slot.
If you are removing a Type 2 FPC or Type 3 FPC, loosen the screws inside the ejector handles at the top and bottom of the FPC faceplate.
Simultaneously turn both the ejector handles counterclockwise to unseat the FPC.
Grasp the handles and slide the FPC straight out of the card cage halfway.

Place one hand around the front of the FPC (the PIC housing) and the other hand under it to support it. Slide the FPC completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.

Caution: The weight of the FPC is concentrated in the back end. Be prepared to accept the full weight—up to 37 lb (14.5 kg)—as you slide the FPC out of the chassis.

When the FPC is out of the chassis, do not hold it by the ejector handles, bus bars, or edge connectors. They cannot support its weight.

Do not stack FPCs on top of one another after removal. Place each one individually in an electrostatic bag or on its own antistatic mat on a flat, stable surface.

Repeat the procedure for each remaining FPC.

Figure 12: Removing an FPC

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