9 Technical Reference
9.1 Dimensions
RS485DI
1 2 3 4 GND A
AI AO HMI
1 2 3 4 5
B GND
24VDC
+
_
+
_
+
_
PWR
DI1
DI2
DI3
DI4
DO1
DO2
DO3
DO4
ALARM A
ALARM B
RUN
COMMS
RS485
USB
NODE
ADDRESS
ON
OFF
MASTER
SLAVE
TERM
DO1
NO COM NO COM
T4 T3 GND
DO2
DO3
NO COM NO COM
DO4
ETHERNET
1
2
3
4
5
6
7
8
9
0
1 2
3
WS010943B
1. 112 mm (4.4 in)
2. 45 mm (1.8 in)
3. 106 mm (4.2 in)
9.2 Environmental requirements
Parameter Value
Operating temperature -20°C – +65°C (-4°F – 149°F)
Storage temperature -20°C – +70°C (-4°F – 158°F)
Operating humidity Relative humidity, maximum 90%
Sunlight exposure UV-resistant
Maximum altitude • With UL approval: Maximum 2000 m (6562 ft)
• Without UL approval: 4000 m (13 123 ft)
Pollution degree 2
Installation location Indoors
Not intended for use in wet locations
Overvoltage category II
9.3 IP rating
1. Ingress Protection Code (IP)
2. Degree of protection against foreign objects
3. Degree of protection against water
9 Technical Reference
APP 412 Installation, Operation, and Maintenance manual 27