Replacing a TX-CIP
The TX-CIP is located to the left side of the TX-SIB card cage. The TX-CIP is hot-removable and hot-insertable. It weighs approximately 8 lb (3.6 kg). When the TX-CIP is removed, the backup TX-CIP provides redundant connections to the active host subsystem in the TX Matrix router and the active Control Boards in the T640 routers.
If you are replacing a TX-CIP in an operational TX Matrix router, the TX Matrix router and each T640 router in the routing matrix must have redundant host subsystems.
Removing a TX-CIP
To remove a TX-CIP (see Figure 1):
- Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
- Label each cable with its corresponding port name—for
example, LCC0,
ETHERNET
,CONSOLE
, andRED ALARM
. - Disconnect all cables connected to the TX-CIP. For instructions, see Replacing a TX Matrix Console or Auxiliary Cable or Replacing a TX Matrix Management Ethernet Cable.
- Loosen the captive screws at the top and bottom of the TX-CIP faceplate.
- Grasp the handle on the TX-CIP faceplate and carefully
pull the TX-CIP straight out of the chassis.
Caution Be sure to slide the TX-CIP straight within the slot to avoid damaging the connector pins on the front of the midplane.

Installing a TX-CIP
To install a TX-CIP (see Figure 2):
- Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
- Grasp the TX-CIP handle with one hand and hold the bottom
edge of the TX-CIP with the other hand to support its weight.
Note The components on the TX-CIP are on the left side of the board, unlike the components of a TX-SIB, which are on the right side. Verify that the components are on the left before inserting the TX-CIP.
- Insert the TX-CIP into its chassis slot, carefully aligning the top and bottom of the TX-CIP with the guides in the card cage.
- Carefully push the TX-CIP straight into the chassis until
it contacts the midplane.
Caution Be sure to slide the TX-CIP straight within the slot to avoid damaging the connector pins on the front of the midplane.
- Tighten the screws at the top and bottom of the TX-CIP faceplate.
- Using the labels to assist you, reattach all cables to the TX-CIP.
- To verify that the TX-CIP is installed correctly, plug
an Ethernet cable into the
ETHERNET
port on the TX-CIP. If the host module is operational, theACT
LED blinks to indicate Ethernet activity. If you can run the CLI from a management device attached to the TX-CIP, the TX-CIP is installed correctly.
