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Installation
3-193000-A2-GA31-80 December 1994
Procedure
1. Attach the other end of the SDCP ribbon cable to
the back of the SDCP, as shown in Figure 3-12.
2. Secure the panel to the front of the carrier with its
four captive screws, using the same screw holes
that held the blank cover plate.
3. The display on the SDCP should light up
immediately. If it does not, check the ac power
connections at the rear of the carrier and the two
fuses at the rear of the power transformer unit. If
necessary, make sure that both ends of the SDCP
ribbon cable are seated securely in their
connectors. If the SDCP still does not light up, call
your AT&T Paradyne representative.
4. For a cabinet configuration with multiple carriers,
install the SDUs in the appropriate carriers, then
connect all of the SDUs in a daisy chain. Use an
8-pin modular telephone cord to connect the
FP OUT jack at the rear of the SDU in this carrier
to the FP IN jack of the SDU in the next carrier
above or below it (see the Shared Diagnostic Unit
(SDU) Installation and NMS Connection sections
of this chapter). Use another cord to connect the
second SDU’s FP OUT jack to the next SDU’s
FP IN. Continue to the last carrier in the cabinet.
Once devices have been installed (refer to the Circuit
Card Installation section), test the SDCP’s ability to
address the devices.
Procedure
1. Press Select.
2. Enter a valid carrier and slot address.(Refer to the
Shared Diagnostic Unit (SDU) Installation section
of this chapter for information on carrier
addresses.) For Model 3151 CSUs and Model
3161 DSU/CSUs, the green OK indicator flashes.
It should be the only OK indicator flashing in the
cabinet. For all devices but T1 CSUs and T1
DSU/CSUs, the yellow Front Panel indicator on
the selected device should light. (It should be the
only Front Panel indicator lit in the cabinet.)
3. Press Select again. The display on the SDCP
should show the last menu displayed, or in the
case of a new installation, the top-level menu on
the selected device.
Speaker Panel Installation
An optional speaker panel can be installed to provide
audio monitoring of any Model 3811 or 3911 dial/lease
modem installed in a cabinet of COMSPHERE
3000 Series Carriers. If there is only one carrier in the
cabinet and no SDCP is installed, the speaker panel can be
mounted directly to the carrier in place of the cover plate
(as shown in Figure 3-10). If there is more than one
carrier in the cabinet, the speaker panel should be
mounted on a carrier without the SDCP. If there is only
one carrier in the cabinet and an SDCP is mounted on the
carrier, the speaker panel may be mounted directly to the
front rail, as shown in Figure 3-13.
Preinstallation Inspection
Check the speaker, speaker jack, and panel for physical
damage. If there are signs of damage, report this
immediately to your shipping representative and your
AT&T Paradyne representative.
Installation
If the carrier has a cover plate installed, use
Figure 3-10 and begin at Step 1 of the following
procedure. If the carrier has an SDCP installed, use
Figure 3-13 and begin with Step 2 of the following
procedure to mount the speaker panel to the cabinet’s
front rails.
Procedure
1. To install the speaker panel directly to the carrier,
remove the cover plate and then secure the speaker
panel to the front of the carrier using its four
captive screws. Use the same screw holes that held
the cover plate in place (see Figure 3-10).
Continue to Step 6.