Rockwell Automation 1203 Serial Communications Module Series B User Manual
Page 11

1–3
Product Description
1203–5.5 September 1995
Figure 1.1
Open Style Communications Module
TX (Adapter transmit) when flashing
Serial Status
1. LED off: adapter power removed
2. LED flashing green: link OK, off–line
3. LED solid green: link OK, on–line
4. LED flashing red: was on–line, now off–line
5. LED solid red: fault
SCANport Status
1. LED off: adapter power removed
2. LED flashing green: link OK, not connected
3. LED solid green: link OK, connected
4. LED flashing red: was connected, now not connected
5. LED solid red: fault
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
SW1
SW2
SW3
LED Indicators
J4
J2
9-Pin D-shell
SW1.1 – SW1.2 = Protocol select
SW1.3 – SW1.8 = Adapter address
SW2.1 – SW2.3 = Baud rate selection
SW2.4 = Parity enable
SW2.5 = Parity sense (even/odd)
SW2.6 = Stop bits
SW2.7 = Point-to-point/multi-drop
SW2.8 = CRC/BCC check
SW3.1 = Logic command/status and
reference/feedback
SW3.2 = Datalink A settings
SW3.3 = Datalink B settings
SW3.4 = Datalink C settings
SW3.5 = Datalink D settings
SW3.6 = Duplicate message detection
SW3.7, SW3.8 = Application timeout
default value
AB0394C
Serial
Communications
Module
RX (Adapter receive)
when flashing