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1-8 Introduction
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(Both Sides)
Pins
Internal Connections of the
Special AUDIX Null-Modem
2
3
20
6
22
8
4
5
24
15
17
7
2
3
20
6
22
8
4
5
24
15
17
7
1
14
15
16
17
18
19
20
21
22
23
24
25
13
12
11
10
2
9
8
7
6
5
4
3
1 1
Standard RS-232
Female Connector
Figure 1-1. H600-330, Group 1 AUDIX Special Null-Modem Cable
H600-331, Group 2 Cable
All new AUDIX networking systems are shipped with one H600-331, Group 2 breakout cable. One end of
the Group 2 cable is a 50-pin male Amphenol connector that connects to the ACCE on the AUDIX system.
The other end of the cable has a 50-pin female Amphenol connector and two 25-pin RS-232 male
connectors. See Table 1-1 for the pin assignments.
The female Amphenol connector provides access to the four DCP channels (AUDIX networking channels
1, 2, 3, and 4). The RS-232 connector A provides access to one RS-232 channel (AUDIX networking
channel 5), and RS-232 connector B provides access to the other RS-232 channel (AUDIX networking
channel 6).
Table 1-1. Pin Assignments for the H600-331, Group 2 Cable
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Connector Pin Number
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50-Pin Amphenol shield 7 34 9 14 33 35 13 38 39 36 12 8 32 11
RS-232 A 1 2 3 4 5 6 7 8 12 13 15 17 20 22 24
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50-Pin Amphenol shield 21 46 23 48 24 16 47 17 42 19 44 18 49 43
RS-232 B 1 2 3 4 5 6 7 8 12 13 15 17 20 22 24
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