IOM2710 and IOM3710 Input/Output Modules Installation Instructions
6
Relay
Output
Control
OUT NO
n
Normally Open Contact
Connects OCOM to OUT NO when activated.
240 VAC maximum voltage
1/3 hp 125 VAC, 1/2 hp 250 VAC
400 VA Pilot Duty @ 240 VAC
200 VA Pilot Duty @ 120 VAC
3 A Noninductive 24-240 VAC
OCOM
n
The relay signal common; isolated from other terminal
commons, including Relay Output terminal commons.
OUT NC
n
Normally Closed Contact
Connects OCOM to OUT NC when activated.
240 VAC maximum voltage
1/3 hp 125 VAC, 1/2 hp 250 VAC
400 VA Pilot Duty @ 240 VAC
200 VA Pilot Duty @ 120 VAC
3 A Non-inductive 24-240 VAC
SA/FC Bus
Port
SA/FC Bus
Provides SA Bus communication network
RJ-12 6-position modular connector
30.5 m (100 ft) maximum length
phone cord
SA Bus
3
+
-
COM
Provides SA Bus communication network.
Daisy-chained
366 m (1,200 ft) maximum length
0.6 to 1.5 mm
2
(18 to 24 AWG)
[22 AWG Recommended]
FC Bus
+
-
COM
Provides FC Bus communication network.
Daisy-chained
1,524 m (5,000 ft) maximum length
0.6 to 1.5 mm
2
(18 to 24 AWG)
[22 AWG Recommended]
SHLD
Provides an optional shield connection.
24~ Power
Hot
AC Supply Input
Supply 20-30 VAC (Nominal 24 VAC)
16 AWG
COM
The 24~ Power common; isolated from all other terminal
commons.
1.
The terminal block column displays all the points for the IOM3710 model.
2.
The SA Bus and the SA/FC Bus are daisy-chained internally.
3.
The SA Bus and FC Bus specifications in this table are for MS/TP bus communications at 38.4k baud. For more
information, refer to the
MS/TP Communications Bus Technical Bulletin (LIT-12011034)
.
Table 1: IOM2710 and IOM3710 Controller Wiring List (Part 2 of 2)
Terminal
Block
1
Terminal
Labels
Function and Electrical Ratings/Requirements
Wiring Requirements
(See Table 2 for A, B, or C.)
