Installation
3.At the front of the carrier, hold the circuit card vertically, with the latch on its faceplate in the open position (Figure
Slide the card into the slot until the power and network connector seats firmly in the mating connector on the backplane.
4.Press the latch to secure the circuit card in the carrier, rotate the circuit pack lock back into the closed position (refer to Figure
The carrier's power transformer unit performs a
If the LEDs on the circuit card do not light after being installed in the carrier, there may be a failure in the circuit card or in the carrier's power supply. Install the DSU or dial/lease modem in another working carrier. If it works, or if a second DSU or dial/lease modem installed in another slot in the same carrier also does not light, check that the power cable is properly attached and that the ac outlet is active. If the power cable is properly attached, the ac outlet is active, and the DSUs or dial/lease modems still do not light up, check the fuses on the power transformer unit (refer to Figure
5.Connect cabling, install ferrite chokes (Figure
To install the TDM (and MCMP) and digital bridge interface cables:
a.Connect the
b.Select the connector labeled Port 2, plug it into the DTE that will communicate with the TDM or MCMP circuit card over Port 2, and use the small screwdriver to engage and tighten the screws on either side of the connector. Select the connector labeled Port 3 and attach it to the appropriate DTE as described for Port 2, and so on, until all five connectors are attached to DTEs.
If you are using a carrier assembly with an ac power transformer unit, you must install the ferrite choke supplied with the carrier assembly onto your ac power cable. See Step 7 of the Modular Circuit Card Installation section earlier in this chapter for instructions.
December 1994 |
