Publication 1394-5.0 — May 2000
4-12 Wiring 1394 GMC and GMC Turbo Systems
Figure 4.10
SW1 - SW6 (RS-232/RS-422) Switch Settings
When a port is configured for RS-232 operation, you can connect
compatible serial communication devices using common RS-232
cables. Refer to the table below for signal designations and Figure
4.11 for cable recommendations. Refer to the IMC S Class Motion
Control Installation and Setup Manual (publication 999-122) for
multidrop application instructions.
Important: The RTS/CTS and DSR/DTR signals are internally
jumpered to allow you to use standard RS-232 cables
with serial devices requiring hardware handshaking.
SW1
Port J1, J2
SW2
Port J4
SW3
Port J3
SW4
Port J1, J2/J4
SW5
Port J4
SW6
Port J3
Left No DH-485 Terminal No RS-422 Terminal No RS-422 Terminal RS-232/422 RS-232 RS-232
Right DH-485 Terminal (220
Ω
) RS-422 Terminal (220
Ω
) RS-422 Terminal (220
Ω
) DH-485 RS-422 RS-422
RS-232 RS-422
Pin Signal Description Pin Signal Description
1 NC No Connection 1 TxD+ Transmitted Data (+)
2 TxD Transmitted Data 2 TxD- Transmitted Data (-)
3 RxD Received Data 3 RxD- Received Data (-)
4 DTR Data Terminal Ready 4 TxD+ Transmitted Data (+)
5 Com Signal Common 5 Com Signal Common
6 DSR Data Set Ready 6 TxD+ Transmitted Data (+)
7 RTS Ready To sent 7 RxD+ Received Data (+)
8 CTS Clear To Send 8 RxD+ Received Data (+)
9 NC No Connection 9 NC No Connection
Refer to
Data Highway Connection
for DH-485 signal designations.
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