Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

 

Connecting an Offline T640 Router to the TX Matrix Router

 

After you replace the Control Boards and SIBs, you connect the T640 router to the TX Matrix router, including its redundant control and switching planes.

  1. Connecting the Control Planes Between the TX-CIPs in the TX Matrix Router and the Control Boards in a T640 Router

  2. Connecting the Switching Planes Between the TX-SIBs in the TX Matrix Router and the T640-SIBs in a T640 Router

Connecting the Control Planes Between the TX-CIPs in the TX Matrix Router and the Control Boards in a T640 Router

Note

The connections between the TX Matrix switch-card chassis (SCC) TX-CIPs and the Control Boards in the T640 line-card chassis (LCC) are proprietary Ethernet connections. Do not attempt to connect these components through a switch or hub.

To connect the control planes (see Table 1 for the connections between the TX-CIP and T640 Control Board ports):

  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.
  2. Plug one end of a UTP Category 5 cable into the appropriate RJ-45 port labeled LCC 0 through LCC 3 on TX-CIP in slot CIP0. See Table 1. The cable wiring is straight-through (not crossover).
  3. Plug the other end of the cable into the appropriate port in the T640 Control Board in slot CB0. Dress the cable appropriately.
    • T-CB installed in slot CB0CIP port

    • LCC-CB installed in slot CB0TX port

  4. Plug one end of a UTP Category 5 cable into the appropriate RJ-45 port labeled LCC 0 through LCC 3 on the TX-CIP in slot CIP1.
  5. Plug the other end of the cable into the appropriate port in the T640 Control Board in slot CB1. Dress the cable appropriately.
    • T-CB installed in slot CB1CIP port

    • LCC-CB installed in slot CB1TX port

Table 1: Cable Connections Between TX Matrix TX-CIPs and T640 LCC Control Boards

TX Matrix Router

T640 Line-Card Chassis

TX-CIP

Control Plane Port

LCC

Control Board

LCC-CB Port

T-CB Port

TX-CIP in slot CIP0

LCC 0

0

CB0

TX

CIP

LCC 1

1

CB0

TX

CIP

LCC 2

2

CB0

TX

CIP

LCC 3

3

CB0

TX

CIP

TX-CIP in slot CIP1

LCC 0

0

CB1

TX

CIP

LCC 1

1

CB1

TX

CIP

LCC 2

2

CB1

TX

CIP

LCC 3

3

CB1

TX

CIP

Figure 1 and Figure 2 shows the control plane connections between the TX Matrix router and a T640 router. See Control Plane Connections Between the TX Matrix Router and T640 Router for more information.

Figure 1: Control Plane Connections Between TX Matrix TX-CIPs and T640 LCC-CBs
Control
Plane Connections Between TX Matrix TX-CIPs and T640 LCC-CBs
Figure 2: Control Plane Connections Between TX Matrix TX-CIPs and T640 T-CBs
Control Plane
Connections Between TX Matrix TX-CIPs and T640 T-CBs

Connecting the Switching Planes Between the TX-SIBs in the TX Matrix Router and the T640-SIBs in a T640 Router

To complete the connection of the switching planes, you connect the five fiber-optic array cables to the five T640-SIBs in the T640 router. The fiber-optic array cables should already be routed between the TX Matrix router and the T640 router, tested, and connected to the TX Matrix router. To connect the fiber-optic array cables to the T640 router (see Fiber-Optic Array Cable Connections between TX-SIBs and T640-SIBs for the T640-SIB adapter connections):

Warning

Do not look directly into a fiber-optic array adapter or a connector at the end of a fiber-optic array cable attached to an adapter. The fiber optics emit laser light that can damage your eyes.

  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.
  2. Using the labels you attached to the ends of the fiber-optic array cables, identify the cable that plugs into T640-SIB-0.
  3. If applicable, remove the protective tape covering the T640-SIB fiber-optic array adapter.Caution

    While you install the TX Matrix router or replace a fiber-optic array cable, small deposits of oil, dust, and debris can enter the TX-SIB and T640-SIB fiber-optic array adapters, the fiber-optic array cable connectors, and the loopback connectors and adapters. We recommend that you clean the optics in these components, as well as the loopback connector and adapter dust covers, immediately before connecting them. For cleaning instructions, see Cleaning the TX Matrix and T640 Fiber-Optic Components Overview.

  4. Remove the dust cover from the fiber-optic array cable connector by loosening the thumbscrew and captive screw on the connector. (Use the supplied small slotted screwdriver to loosen the captive screw.) Store the dust cover in a dust-free resealable plastic bag.
  5. With the fiber-optic array cable extending toward the left side of the chassis (as you face the rear), align the cable connector with the T640-SIB-0 adapter and carefully press it into the adapter until it stops. The cable connector and adapter are keyed to ensure proper mating. Note

    The optics in a fiber-optic array adapter are spring loaded, so you must continue to apply force to a fiber-optic array cable connector or loopback connector while securing it to a TX-SIB or T640-SIB adapter.

  6. Partially tighten the thumbscrew and captive screw on the fiber-optic array cable connector. (Use the supplied small slotted screwdriver to tighten the captive screw.) Alternate between the thumbscrew and captive screw until the cable connector is secured to the adapter.
  7. Repeat Step 2 through Step 6 for the four remaining fiber-optic array cables that connect to T640-SIB-1 through T640-SIB-4.

Figure 3 shows the control and switching planes connections between the TX Matrix router and a T640 router.

Note

Because the T640-SIB adapters and fiber-optic array cable connectors extend beyond the rear of the chassis, you need a minimum of 4 inches of clearance in the rear of a T640 router installed in a cabinet.

Figure 3: Switching Planes Connections
Switching
Planes Connections