5
Model 3811Plus Installation
The COMSPHERE 3000 Series Carrier has 17 slots which can hold up to 16 modems
and one SDU. The SDU is required when the modems in the carrier are controlled by
an NMS, or when multiple carriers in a cabinet configuration are to be controlled by a
single SDCP. The SDCP of the COMSPHERE 3000 Series Carrier is the user interface
to the 3811Plus modem. A single SDCP can control modems in up to eight carriers.
To install a 3811Plus modem into the carrier, perform the following steps.
1. At the rear of the carrier, install the rear connector plate. Make sure the plate uses
the same slot position as that intended for the modem.
496-14906
V
.35
(3600/3500)
RS366A/V
.25
(3800)
EIA232/V
.24
25-Pin
DTE Connectors
P21
Loosely fasten the plate. This allows for slight adjustments later when installing the
modem.
CAUTION:
Always use a ground strap when handling a modem. Always store a
3811Plus modem in an antistatic bag when it is removed from the carrier.
