ΣYG
-
S7G2
-MDK
User’s Manual
4/5/2021
Copyright ©2021,
Future Designs, Inc
Page
21
of
26
2
3.3V
3
Tx-
4
Rx+
5
3.3V
6
Rx-
7
No Connect
8
Signal Ground
5.6
CAN/RS485
The CARRIER Board includes one Male DB9 Interface Connector that supports either CAN
or RS485 (Rev 2 and later) depending on the configuration of jumpers JP4 – JP7. The CAN
interface utilizes an NXP TJA1040TD high speed transceiver IC to provide fully ISO 11898
standard interface at up to 1MBaud. The TJA1040 allows up to 110 nodes and very low
electromagnetic emissions.
Note: Rev 1 PCB only supports CAN on P3
Please refer to the specific details of the processor module being utilized for support of the CAN
interface function.
Pin Number
CAN Mode
RS485
Mode
(Rev 2 and later only)
1
No Connect
No Connect
2
CANL
485_RDB
-
3
Signal Ground
4
Signal Ground
Signal Ground
5
Signal Ground
Signal Ground
6
Signal Ground
Signal Ground
7
CANH
8
No Connect
485_TDB
-
9
5V
No Connect
