Reinstalling the T1600 Components in the Chassis
- Reinstalling the T1600 Rear Fan Tray
- Reinstalling the T1600 SCGs
- Reinstalling the T1600 Control Boards
- Reinstalling the T1600 SIBs
- Reinstalling the T1600 Power Supplies
- Reinstalling the T1600 FPCs
- Reinstalling T1600 Front Fan Trays
- Reinstalling the T1600 Front Cable Management System
Reinstalling the T1600 Rear Fan Tray
To reinstall the rear fan tray (see Figure 1):
- 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.
- Grasp the fan tray by its handles and insert it straight into the chassis.
- Tighten the captive screws on the top and bottom of the fan tray faceplate to secure it in the chassis.
Figure 1: Reinstalling the Rear Fan Tray

Reinstalling the T1600 SCGs
To reinstall the SCGs (see Figure 2):
- 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.
- Carefully align the sides of the SCG with the guides in the SCG slot.
- Grasp the SCG by its handle and slide it straight into the chassis until it contacts the midplane.
- Tighten the captive screws on the corners of the SCG faceplate.
- Repeat the procedure to reinstall the remaining SCG.
Figure 2: Reinstalling an SCG

Reinstalling the T1600 Control Boards
To reinstall the control boards (see Figure 3 and Figure 4):
- 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.
- Carefully align the sides of the control boards with the guides inside the chassis.
- Slide the control boards into the chassis, carefully ensuring that it is correctly aligned.
- Grasp both ejector handles and press them inward to seat the control board.
- Tighten the captive screws on the ejector handles, using a Phillips (+) screwdriver, number 2.
- Repeat the procedure to reinstall the remaining control board.
Figure 3: Reinstalling a T-CB

Figure 4: Reinstalling an LCC-CB

Reinstalling the T1600 SIBs
To reinstall the SIBs (see Figure 5):
- 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.
- Place one hand underneath the SIB to support it. With the other hand, hold one of the ejector handles on the SIB faceplate.
- Carefully align the sides of the SIB with the guides inside the chassis.
- Slide the SIB into the chassis, carefully ensuring that it is correctly aligned.
- Grasp both ejector handles and press them inward to seat the SIB.
- Tighten the captive screws on the ejector handles.
- Repeat the procedure for each of the remaining SIBs.
Figure 5: Reinstalling a T1600–SIB

Reinstalling the T1600 Power Supplies
Reinstalling the T1600 DC Power Supplies
You can use this procedure to reinstall either the three-input 240-A DC power supplies or the four-input 240-A DC power supplies. Reinstall the lower power supply first, then the upper power supply. To reinstall the DCpower supplies (see Figure 6):
- 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).
- Using both hands, slide the power supply into the chassis until you feel resistance.
- Twist the ejector handles at the upper corners of the power supply faceplate clockwise until they stop.
- Tighten the captive screws at the lower corners of the power supply faceplate to secure the power supply in the chassis.
- Repeat the procedure for the upper power supply.
Figure 6: Reinstalling a Three-Input 240-A DC Power Supply

Figure 7: Reinstalling a T1600 Four-Input 240-A DC Power Supply

Reinstalling the T1600 AC Power Supplies
You can use this procedure to reinstall either the three-phase delta or wye AC power supplies. Reinstall the lower power supply first, then the upper power supply. To reinstall the AC power supplies (see Figure 6):
- 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.
- Using both hands, slide the power supply into the chassis until you feel resistance.
- Twist the ejector handles at the upper corners of the power supply faceplate clockwise until they stop.
- Tighten the captive screws at the lower corners of the power supply faceplate to secure the power supply in the chassis.
- Repeat the procedure for the upper power supply.
Reinstalling the T1600 FPCs
To reinstall FPCs (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.
- Using the list you created when you removed the FPCs, locate the slot in the FPC card cage in which you plan to install the FPC.
- Lift the FPC into place and carefully align first the
bottom, then the top of the FPC with the guides inside the card cage.
Be sure the FPC is right-side up, with the components on the right
of the FPC.

Caution: 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.
- Slide the FPC all the way into the card cage until you feel resistance.
- Starting with the ejector handles on the FPC faceplate nearly horizontal, simultaneously turn both ejector handles clockwise to seat the FPC.
- If you are installing a Type 2 FPC or Type 3 FPC, tighten the screws inside the ejector handles to secure the FPC. Do not overtighten them.
- Repeat the procedure to reinstall each remaining FPC.
Figure 8: Reinstalling an FPC

Reinstalling T1600 Front Fan Trays
To reinstall 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.
- Grasp one of the fan trays by its handles and insert it straight into the chassis.
- Tighten the captive screw on each side of the fan tray faceplate to secure it in the chassis.
- Repeat the procedure to reinstall the remaining fan tray.
Figure 9: Reinstalling a Front Fan Tray

Reinstalling the T1600 Front Cable Management System
To reinstall the front cable management system:
- Position the front cable management system on the studs on the lower front of the chassis.
- Insert the nuts through the holes in the cable management system onto the studs on the chassis.
- Using a 3/8-in. nut driver, tighten the nuts securely.
