Function expansions without options bus
Overview of modules
A31003-K16-X001-3-7620
,
07/99
3-32
Hicom 100 E Version 2.1, Service manual
3.7.2 Serial Interface Cable and V.24 adapter
The V.24 adapter cable is used to connect PCs directly. An electronic controller incorporated in
the cable matches levels. Without level matching, V.24 operation is not possible.
For connecting printers or modems, differently wired adapters are connected between the 9-
pole SubD socket of the cable and the interface of the relevant device.
Figure 3-21 Pin assignment of the V.24 adapter cable
CD Carrier Detect
CTS Clear To Send
DSR Data Send Ready
DTR Data Terminal Ready
GND Ground
RTS Request To Send
RxD Receive Data
TxD Transmit Data
Length approx. 15 cm
6-pin
mini-DIN plug SIC
9-pole
SubD socket
free 9
CTS 8
RTS 7
DSR 6
1
2
34
56
RTS
CTS
GND
TxD
RxD
VCC
5 GND
4 DTR
3 TxD
2 RxD
1 CD
Length approx. 260 cm
Level matching
in the cable
Adapter
MB
PC
Printer
Modem