User's Guide

10
Pin
RS232
(serial)
RS485
(ModBus)
RS232
(console)
1
-
-
RTS
2
-
-
DTR
3
-
-
TXD
4
GND
GND
GND
5
TXD
-
GND
6
RXD
Modbus B
RXD
7
RTS
-
DSR
8
CTS
Modbus A
CTS
Table 4: Common Serial pinouts
(1) Alarm / Power Connector – Door alarm / tamper sensor inputs and DC power. Alarm
connection is a dry contact.
Figure 8: Alarm / Power Connections
Rear Panel
Figure 9: Rear Panel - Note center screw holes for DIN-rail mount accessory