BV 7044 (0524)
All rights reserved. Equipment subject to change without notice: 157
HIMA Paul Hildebrandt GmbH + Co KG, P.O. Box 1261, 68777 Brühl
BV 7044
BV 7044: Data connecting cable
Connection from interface RS 232C / V.24 of a PC to the interface converter H 7505
Standard lengths: 5 m, 15 m, 30 m
Figure 1: Wiring
Table 1: Maximum cable length at transmission rate
Table 2: Pin assignment of the interface RS 232, 9-pole
Transmission rate Maximum cable length
9 600 bps 30 m
19 200 bps 15 m
57 600 bps 5 m
Pin RS 232 Signal Meaning
1 CF DCD Data could be received
2 BB RxD Receive data from interface to PC
3 BA TxD Send data from PC to interface
4 CD DTR PC ready to receive
5 AB GND Data Ground
6 CC DSR Interface ready to receive
7 A RTS PC indicates that PC would send
8 CF CTS Interface indicates that PC could send
9 CE RI Ring indicator
2
MIN-D plug, 25-poles
3
5
7
WH
BN
GN
YE
1
13
14
25
LiYCY
4 x 0.25 mm
2
MIN-D socket, 9-pole
9
1
5
6
WH
BN
GN
YE
2
3
4
5
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