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)
2
RX (IN)
3
TX (OUT)
4
CANH
5
GND-F
6
NC
7
CANL
8
NC
9
1PPS (OUT)
