Paradyne COMSPHERE 3610, Operator'S Manual

Page: 76 / 310

COMSPHERE 3600 Series Data Service Units
3-8 July 1999 3610-A2-GB91-90
Slide the DSU into the slot, aligning the circuit
card with the rear connector plate until the
connectors seat firmly into the back of the carrier.
Press the faceplate latch to secure the DSU into
the carrier, rotate the circuit pack lock into the
closed position (
Figure 3-3 ), and tighten the screw.
6. Return to the rear of the carrier and tighten the
rear connector plate screw.
7. At the rear of the carrier, connect the appropriate
DTE interface cable (EIA-232-D or V.35) to the
rear connector plate. For an EIA-232-D interface
cable, connect the EIA-232-D cable to the top
DTE connector on the rear connector plate.
For the 25-pin V.35 interface, a modular DSU
V.35 adapter was shipped with the unit. To
connect a V.35 adapter to the 25-pin V.35
connector, refer to Figure 3-5 and perform the
following steps:
a. Connect the 25-pin end of the modular DSU
V.35 adapter to the bottom DTE connector of
the rear connector plate. Tighten the
thumbscrews on each side of the connector.
b. Connect the V.35 interface cable to the 34-pin
end of the V.35 adapter, then tighten the
screws on each side of the cable connector.
8. The installed DSU is connected to the DDS
network through the 50-pin connectors on the rear
of the carrier. These interfaces are specified in the
USOC RJ48T, and the pin assignments are shown
in
Appendix F . Proper network connection to the
DDS facility or to the network channel-
terminating equipment must be made at the far
end of the cable.
9. If the network line and remote DSU are installed
and tested, do a Remote Loopback – a Test Pattern
test.
10. Circuit ID information can be written on the cover
plate under the appropriate slot number.
25-Pin Connector
V.35 Adapter
V.35 Cable
Thumbscrews
99-16298
Figure 3-5. Modular DSU V.35 Adapter Installation