Technical Documentation

Removing the TX Matrix Components

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

Removing the Power Supplies

The power supplies are located at the lower rear of the chassis. Each two-input 160-A power supply weighs approximately 23 lb (10.5 kg). Each three-input 240-A power supply weighs approximately 25 lb (11.3 kg).

To remove the power supplies:

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. 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 TX Matrix router.
Repeat the procedure for the other power supply.

Note: This illustrations shows two-input 160-A power supplies. The procedure is the same for three-input 240-A power supplies

Figure 1: Removing a Power Supply Before Installing the TX Matrix Router

Removing the TX-CBs

The TX Matrix router can have up to two TX-CBs. These are located in the upper rear of the chassis in the slots marked CB0 and CB1. Each one weighs approximately 5 lb (2.3 kg).

To remove the TX-CBs (see Figure 2):

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 TX-CB faceplate.
Flip the ejector handles outward to unseat the TX-CB.
Grasp the ejector handles and slide the TX-CB about halfway out of the chassis.
Place one hand underneath the TX-CB to support it, and slide it completely out of the chassis.
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 TX-CB.

Figure 2: Removing a TX-CB

Removing the Rear Fan Tray

To remove the rear fan tray (see Figure 3):

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 3: Removing the Rear Fan Tray

Removing the TX-SIBs

Five TX-SIBs are installed in the TX Matrix router. The TX-SIBs are located in the front of the chassis in slots SIB0 through SIB4. Each TX-SIB weighs approximately 35 lb (15.9 kg).

To remove the TX-SIBs (see Figure 4):

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 to an approved site ESD grounding point. See the instructions for your site.
Simultaneously turn both ejector handles on the top and bottom of the faceplate counterclockwise to unseat the TX-SIB.

Grasp both ejector handles, pull firmly, and slide the TX-SIB about three-quarters of the way out of the chassis.

Caution: Be prepared to support the weight of the TX-SIB (approximately 35 lb [15.9 kg]) before you slide it completely out of the chassis.

When the TX-SIB is out of the chassis, do not hold it by its ejector handles or edge connectors. They cannot support its weight.

Place one hand underneath the TX-SIB to support it, and slide it completely out of the chassis.
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 TX-SIBs.

Figure 4: Removing a TX-SIB

Removing the Front Fan Trays

The front fan trays are located in the lower front of the chassis below the craft interface. Each front fan tray weighs about 18.6 lb (8.4 kg).

To remove the front fan trays (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.
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.

Figure 5: Removing a Front Fan Tray

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