Back Panel - Multitech CC4800 Hardware Manual

2.3

Back Panel

The back panel of the MultiModemManager provides the system and power
connectors for the installation of the rack hardware, as shown below.
TN 1-16 DB25 Connectors For
Phone Line Interface (TNV Circuit)
(SELV)
Test Points
Power Supply
0 volts
Figure 2-2. MultiModemManager Back Panel
The basic back panel includes a phone line cable; refer to Chapter 3 for cable
pin assignments. Note that the basic back panel is shown in
Figure 2-2. The optional RJ21 version of the back panel is shown in
Figure 2-4; the optional RJ11 version is shown in Figure 2-5.
Note: The CC4800 48 Volt Card Cage does not appear as illustrated. You will
find a 3-terminal power input strip and hexagonal-shaped fuse holder instead of
an AC Power outlet and fuse on the bottom right of the cage.
2 - 4
5 volts
RS232 Interface (SELV) Connectors
DB25S Female RS232 (SELV)
(Reserved For Future Use)
Network Connectors (RJ11) (SELV)
Alarm Connector (SELV)
(for future use)
NO COM NC
Normally Closed (SELV)
Common (Ground) (SELV)
Normally Open (SELV)
AC Power
and
Fuse