16
Port B can be switched to RS232 or RS422 using the
$PASHS,MDP command. RS232 inputs/outputs are typically
± 10 Volt asymmetrical signals with respect to ground.
RS422 inputs/outputs are 0/+5 Volt symmetrical signals
(differential lines).
NOTE: All signals are electrically isolated from the chassis
ground and power source.
Serial Port F
On rear panel. A standard RS232 serial port + CAN bus +
1PPS output.
A 9-C connector fitted with a sealing cap.
The 1PPS output is similar to a standard TTL output (0/+5 V):
• VOH Min= 4.5 V at IOH = + 4 mA
• VOL Max= 0.4 V at IOL= - 4 mA
NOTE: All signals are electrically isolated from the chassis
ground and power source.
Pin Signal Name
1 CAN POWER (IN)
2RX (IN)
3TX (OUT)
4CANH
5 GND-F
6NC
7CANL
8NC
9 1PPS (OUT)
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