Allen-Bradley Bulletin 1203 Series User Manual page 11

Figure 1.1
Open Style Communications Module
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
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
Product Description
J4
1
2
3
SW1
4
5
6
7
8
1
2
3
4
Serial
SW2
5
Communications
6
Module
7
8
1
2
3
4
SW3
5
6
7
8
LED Indicators
RX (Adapter receive)
when flashing
1203–5.5 September 1995
1–3
J2
9-Pin D-shell
AB0394C