cab - Produkttechnik GmbH
B-3
Fig. B-5
Interface cable with 9 pin computer connector
for RS-232 with protocol "RTS/CTS" or "XON/XOFF"
Fig. B-4
Interface cable with 25 pin computer connector
for RS-232 with protocol " RTS/CTS" or "XON/XOFF"
Interface Cable for RS-422 / RS-485
To control the Hermes by RS-422/ RS-485 interface, only the signals TDATA+,
TDATA-, RDATA+, and RDATA- are necessary.
Check the pin assignment for the interface of your computer, and use the pin
assignment of the printer as shown in table B-1 to obtain a suitable cable. The
connectors of TDATA+ and RDATA+ as well as TDATA- and RDATA- at the
plug-in-connection of the cable must be united. If there is a very large transfer
distance a termination of the cables is recommended.
PC
Hermes
25 pin connector
25 pin plug
1
1
2
3
3
2
4
5
5
4
7
7
6
8
20
PC
Hermes
9 pin connector
25 pin plug
2
2
3
3
5
7
7
5
8
4
1
4
6