Com1/2; Option Can /Audio - JHCTech SIGM-2650 User Manual

2.3.7 COM1/2

SIGM-2650 provides 2 COM1/2 isolated serial ports through the 2* d-sub 9-pin connector. COM1
can only be configured as RS485, COM2 can only be configured as RS232. Table 2.9 is a detailed
description of pin assignment.

2.3.8 Option CAN /AUDIO

SIGM-2650 provides 2* optional CAN/AUDIO port through 1* d-sub 9-pin connector. Table 2.10 provides
detailed descriptions of pin assignments. (When selecting AUDIO, the signal definition can be customized
according to the line.)
Table 2.10: Option CAN Connector Pin Assignments
Pin
1
3
5
7
Picture 2.14: COM1/2
Table 2.9: COM1/2 Connector Pin Assignments
Pin RS-485 Signal
1 RS485_D-
2 RS485_D+
3 NC
4 NC
5 GND
6 NC
7 NC
8 NC
9 NC
Picture 2.15: optional CAN/AUDIO
Signal
NC
CAN1G
NC
CAN1H
RS-232 Signal
NC
RS232_RX
RS232_TX
NC
GND
NC
NC
NC
NC
Pin Signal
2 CAN1L
4 CAN2L
6 NC
8 CAN2G
21
User's Manual