Rockwell Automation 2706-P42R_P42C_P43R_P43C_P44R_P44C_P72CNx_P74CNx InView Marquee Message Display - Manual (Page 5)

Publication 2706-IN006E-EN-P
4 InView Marquee Message Display
9. Connect the incoming serial wires.
TB1 can be used for incoming RS-232 or RS-485 serial
connection. They cannot be connected at the same time. RS-485
is recommended to reduce undesirable electrical interference.
TIP
TB1 can be used for incoming serial connection for
RS-232 or RS-485. The full pinout diagram is shown
below.
TB1
TB1 - Full
1. GND 5. RS-485(+)
2. +5V 6. RS-485(-)
3. RS-232 TX 7. NC
4. RS-232 RX 8. SHIELD
TB1
Incoming serial
wires
8
7
6
5
4
3
2
1
TIP
Be sure to place the wires so they are not caught by
screws when replacing the power supply cover, and
also so they do not interfere with fan operation.
TB1 - RS-232
1. GND 5. NC
2. NC 6. NC
3. RS-232 TX 7. NC
4. RS-232 RX 8. NC
TB1 - RS-485
1. NC 5. RS-485(+)
2. NC 6. RS-485(-)
3. NC 7. NC
4. NC 8. SHIELD