EVOC P12 Series, Manual

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Debugging
P12 SERIES · 21 ·
Their pin definition are as follows:
Signal Name
Pin
RS-232 RS-422 RS-485
1 DCD# TXN DATA-
2 RXD TXP DATA+
3 TXD RXP NC
4 DTR# RXN NC
5 GND GND GND
6 DSR# NC NC
7 RTS# NC NC
8 CTS# NC NC
9 RI# NC NC
Note: under the RS-485 mode, the data receiving/sending direction is controlled by RTS.
With ECS-1837/ECS-1838 COM mode configuration:
It can be selected via jumper on the I/O board, and please refer to the above table for its pin
definition.The detailed configuration is as follows:
Pin Setup Mode Selection
COM1 COM2COM3COM4
RS-232
(Default)
RS-422 RS-485
Terminator
120

JP1 JP4 JP7 JP10 1-2 3-4 5-6,7-8 /
JP2 JP5 JP8 JP11 1-3,2-4 3-5,4-6 3-5,4-6 7-8
JP1
～
JP12
JP3 JP6 JP9 JP12 1-3,2-4 3-5,4-6 3-5,4-6 7-8