Table of Contents
Advertisement
2-8
Chapter 2 - Description and Installation
Main Processing Board (MPB)
The MPB contains all of the necessary circuitry to operate the system. The MPB also
contains the system memory and maintains a customer-related database in system RAM.
All call processing and system maintenance are performed by the MPB. The MPB uses a
standard straight-through cable.
Two RS-232 serial DB-9 connectors are positioned in the front of the MPB. The top
connector, which is marked DBA, is used for connection to a personal computer with
remote programming software and with ICLID. The bottom connector, marked SMDR, is
used for connecting to a Station Message Detail Recording (SMDR) device.
shows the RS-232 port connections.
Table 2-1: RS-232C DB-9 Connector
DCE
Male DB-9
1
2
3
4
K
S
5
U
6
7
8
9
DHS- L Gener al Descr iption
Designation
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
Table 2-1
Advertisement
Table of Contents
