Cables
The 4−wire Channel Service Unit/Data Service Unit (CSU/DSU) module uses a standard straight−through RJ−45 cable to connect from the RJ−48S jack on the CSU/DSU to the wall jack.
Connector Pinout
RJ−48S Pin
Signal
1
2
7
8
Receive ring
Receive tip
Ring
Tip
Connecting the 56/64 Kbps Card to the Network
This connection requires a straight−through RJ−48S−to−RJ−48S or a straight−through RJ−48C−to−RJ−48C cable.
Follow these steps:
1.Verify that the router is OFF.
2.Connect one end of the cable to the card's 56/64 kbps port.
3.Connect the other end of the cable to the 56/64 kbps services wall jack.
56/64 Kbps WAN Interface Card LEDs
The table below shows the different LEDs on the card and their meaning.
| 56/64 Kbps WAN Interface Card LEDs |
|
|
LED | Meaning |
| |
TD | Data is being transmitted to the Data Terminal |
| Equipment (DTE) interface. |
|
|
RD | Data is being received from the DTE interface. |
| |
LP | The internal DSU/CSU is in loopback mode. Solid |
| illumination any time a loopback is active. |
|
|
Cisco − WIC−1DSU−56K4 Cable Specifications