Installation manual
Installing the Carrier and Assembly Components
2-113000-A2-GA31-F0 March 2001
Table 2-1
Fan Module Cooling Requirements
Ambient
Temperat re
Circuit Card
Number of Carriers
Temperature
Range
Circ
u
it
Card
Configuration
1
1–2 3 4 5–6
DSUs without
DBMs and CSUs
No fan modules
1 fan module (place in
second carrier from top)
39_ – 86_F
(4_ – 30_C)
Dial/lease
modems and
DSUs with DBM
2
No fan
modules
1 fan module
(place in middle
carrier)
2 fan modules (place in
bottom carrier and
second from top)
1 fan module per carrier
T1 DSU/CSUs
2
1 fan module per carrier or 1 fan module per two carriers
(placed in upper carrier)
1
fan
module
er
carrier
86_– 122_F
(30_– 50_C)
T1 DSU/CSUs
2
1 fan module per carrier (Limit of 3 carriers in a cabinet at temperatures above 40_C
or 104_F)
3
1
Installing the TDM or MCMP option has no effect on this table.
2
Use the strictest cooling requirements when there is a mixture of units installed.
3
Allow 1.75″ (IU) spacing between carriers if more than 3 carriers are required.
Installing the SDCP
After the SDCP ribbon cable, power transformer unit,
and optional fan module are installed:
" Procedure
1. Attach the connector on the free end of the ribbon
cable to the back of the SDCP.
495-14811
SDCP
Ribbon
Cable
Shared Diagnostic
Control Panel
(SDCP)
P
a
r
a
dyn
e
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.
The display on the SDCP should light up immediately.
Continue with the following section, Testing the SDCP. If
the SDCP does not light up:
• Check the ac power connections at the rear of the
carrier and the two fuses at the rear of the power
transformer unit.
• Verify that both ends of the SDCP ribbon cable are
seated securely in their connectors.
• If the SDCP still does not light up, call your service
representative.