TM
1
3821-A2-GZ40-10
November 1996
COMSPHERE 3821
Plus
6-Port DTE Interface Assembly
(Feature 3821-F1-002)
Installation Instructions
Document Number 3821-A2-GZ40-10
November 1996
6-Port DTE Interface
Assembly Installation
The following instructions are intended for use in
conjunction with the COMSPHERE 3821Plus Modem
User’s Guide (3821-A2-GB20). Please read the Important
Safety Instructions in that document before proceeding
with the installation.
Install the NIM
The DTE interface assembly covers the network
interface module (NIM), so the NIM must be installed
first. The 3821Plus modem requires one of the following
NIMs:
•
Part number 3000-F1-027 (3821Plus NIM with
Make Busy and Service Line Features), or
•
Part number 3000-F1-028 (3821Plus NIM without
Make Busy and Service Line Features)
Install the NIM and connect its cables according to the
instructions in the user’s guide. Communications adapters
designed or configured for a 4-wire leased line, Digital
Data Service, or programmable PSTN interface cannot be
used with a 3821Plus NIM, and should not be installed in
the same side of the carrier.
Loosely Attach the DTE Interface Assembly
The 6-port DTE interface assembly can be mounted
over any two adjacent slots on the left or the right side of
the carrier. If you are installing only one NIM for
3821Plus modems, the DTE interface assembly must be
mounted on the same side of the carrier as the NIM.
1. Feed the tabs at the bottom of the DTE interface
assembly into the slots in the carrier. See the
illustration below.
2. Insert the screws provided. After tightening them,
loosen them one turn. You will tighten them in a
later step.
496-14876
3000 SERIES
CARRIER
SLOTS
TABS
DTE INTERFACE
ASSEMBLY
A
A
B
B
C
C
