Installation and Setup
076R176-000
SC SRM-6 Multiplexer
2-7
Issue 1
Installation & Operation Manual
Rear Panel DTE Port
(Interface “B” in
)
The SRM-6 and the modem/DSU provide a rear panel DB25 aggregate port connection between
those two devices. The table below describes the pinouts.
•
For an aggregate rate of 56K or 64Kbps, channel rates can be 2.4K, 4.8K, 9.6K, or 19.2Kbps,
synchronous or asynchronous.
•
For an aggregate rate of 19.2Kbps, channel rates can be 1.2K, 2.4K, 4.8K, or 9.6Kbps,
synchronous or asynchronous.
•
For an aggregate rate of 28.8 or 33.6Kbps, channel rates can be 1.2K, 2.4K, 4.8K, 9.6K or
19.2Kbps, synchronous or asynchronous.
Table 2-5
Wired DTE Port Pinouts
RS-232 Interface Port
RS-530 Interface Port
Pin No.
Signal
Pin No.
Signal
2
SD
2
SDa
3
RD
14
SDb
4
RTS
3
RDa
5
CTS
16
RDb
6
DSR
4
RTSa
7
SGND
19
RTSb
8
DCD
5
CTSa
15
ST
13
CTSb
17
RT
6
DSRa
20
DTR
22
DSRb
24
TT
7
SGND
8
DCDa
10
DCDb
15
STa
12
STb
17
RTa
9
RTb
20
DTRa
23
DTRb
24
TTa
11
TTb
Summary of Contents for 076P054-001
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