BlueBox IDTRONIC GEN2 ADVANT UHF, Manual, Page: 46 / 102

BLUEBOX Advant UHF Page 46 of 102
4.1 Serial Version (Items 5221U, 5221U-S, 5237U, 5237U-S, 5231U)
(a) Serial interface
8-poles M12 A-coded male connector
Pin No Min Typical Max Description
RS485 RT+ 1 RS485 connection (positive)
RS485 RT- 2 RS485 connection (negative)
RS485
TERM. RT-
3
RS485 term. resistor (RT-)
To short with pin 2 if needed
RS232 Rx 4 RS232 connection (from host)
RS232 GND 5 RS232 connection (reference)
RS232 Tx 6 RS232 connection (to host)
RS485
TERM. RT+
7
RS485 term. resistor (RT+)
To short with pin 1 if needed
GND 8 GND (same as pin 5)
Hereinafter a cross reference table between connection pin number and the color
of the wires of a standard open ended cable.
Pin No Wire Cable Color
RS485 RT+ 1 White
RS485 RT- 2 Brown
RS485
TERM. RT-
3 Green
RS232 Rx 4 Yellow