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3811Plus Installation
3-33980-A2-GB30-20 November 1996
The installation of a 3811Plus varies slightly if an
SDCP is installed on the front of the carrier. T
o install a
3811Plus modem into the carrier without an SDCP,
perform the following steps:
CAUTION
If you remove the 3811
Plus
from the carrier, always use a
ground strap when handling
the modem. Always store the
3811
Plus
in an antistatic bag
when it is removed from the
carrier.
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.
Loosely fasten the plate. This allows for slight
adjustments later when installing the modem.
2. At the front of the carrier, hold the modem
vertically, with the latch on its faceplate in the
open position, and insert it into the top and bottom
card guides of one of the slots numbered 1–16 (see
Figure 3-2).
Slide the modem into the slot, aligning the modem
with the rear connector plate, until the backplane
connector and DTE connector seat firmly into the
back of the carrier. The faceplate latch
automatically closes as you push the modem into
the carrier. To lock the modem into the carrier,
press the faceplate latch until a click is heard.
3. If the carrier is connected to power, the Power
LED on the faceplate of the 3811Plus
lights up.
After several seconds the modem completes its
power-up self-test in which all faceplate LEDs
light up. If the modem fails, or an alarm condition
exists, the
Alrm LED on the faceplate lights up or
flashes.
Return to the rear of the carrier and tighten the
rear connector plate.
Figure 3-2. Installing a 3811
Plus
Modem