Replacing a TX Matrix Control Plane Cable
The control plane connections between the T640 routers and the TX Matrix router are provided by UTP Category 5 Ethernet cables between the RJ-45 ports on the TX-CIPs in the TX Matrix router and the T-CBs in the T640 routers. The maximum length supported is 100 m. The UTP Category 5 cables do not have to be the same length. The cable wiring is straight-through (not crossover).
 | Note: If you are replacing a control plane connection in an operational routing matrix, the TX Matrix router and the T640 router controlled through this connection must have redundant host subsystems. |
Figure 1: TX Matrix Control Plane Ports on the TX-CIP
Removing a TX Matrix Control Plane Cable
To remove a control plane cable:
- Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
- Press the tab on the cable connector installed
in the TX-CIP port and pull the connector straight out of the port. Ethernet Cable Connector shows the connector.
The control plane ports on the TX-CIP are labeled LCC0 through LCC3.
Note: The RJ-45 ports labeled LCC4 through LCC7 on a TX-CIP are reserved for future use.
- Disconnect the cable plugged into the port labeled CIP on the corresponding T-CB.
Installing a TX Matrix Control Plane Cable
To install a control plane cable:
- Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
- Plug one end of the replacement cable into the appropriate TX-CIP port.
- Plug the other end of the cable into the port labeled CIP on the corresponding T-CB.
- Dress the cable appropriately.
