User`s manual

Hardware Installation
3-6
Connectors
Connector Locations
Eight connectors are located on the IP Gateway rear panel as shown in Figure 3-4 below:
Figure 3-4: IP Gateway Rear Panel
Connector Description
The following table lists the IP Gateway’s connectors and their connection points:
Connector Type/Usage Pin
No.
Signal Name
Power 4 pin Male
Connector/
AC Power
1
2
3
4
Relay
Vin
P.GND
GND
Port 2B RS-232 1
2
3
4
5
6
7
8
TXD
RXD
CTS
P.GND
CD
RTS
CNTRL
DTR
Port 2A RS-485 1
2
3
4
+12V
DO_/rI_
DO / RI
P.GND
Port 1C RS-232 1
2
3
4
TXD
RXD
CTS
P.GND