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MPT-90 PRODUCT MANUAL
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S2 switch setting to enable port 2 serial.
3.3.2
S4 switch settings for serial communication ports
S4 configures additional serial connections at the payload ports. Set for the desired
serial communication mode. Note that in RS485 mode, termination should be ON
for the last unit in the chain.
PAYLOAD
PAYLOAD
PORT 1
PORT 2
RS422
RS232
PINS
PINS
Serial Tx+
(TXD)
10
10
Serial Tx-
33
33
Serial Rx+
(RXD)
11
11
Serial Rx-
34
34
Signal Ground Gnd
12
12
S4 Switch setting for RS232 at Port 1
S4 Switch setting
for RS232 at Port 2
S4 Switch setting for RS422 at Port 1
S4 Switch
setting for RS422 at Port 2
