Johnson Controls IOM2710 Installation Instructions Manual page 4

Terminating Device
on FC Bus Segment
FC Bus
Terminal
Block Plugs
To Next
Device on
the FC Bus
Segment
Stranded 3-Wire Twisted Shielded Cable
Figure 5: FC Bus Terminal Block Wiring
3. If the IOM is connected to the SA Bus of an NCE or
FEC, wire the SA Bus in a daisy chain (Figure 6).
Terminating Device
on SA Bus
SA Bus
Terminal
Block Plugs
To Next
Device on
the SA Bus
Stranded, 4-Wire (2 Twisted Pair) Shielded Cable
(One twisted pair is the
The second pair is COM and SA PWR.)
Figure 6: SA Bus Terminal Block Wiring
4 IOM2710 and IOM3710 Input/Output Modules Installation Instructions
Daisy Chained Device
on FC Bus Segment
Isolated Shield
Connection
Terminal
To Next
Device on
the FC Bus
Segment
Daisy Chained Device
on SA Bus
Cable Shield
Connection
To Next
Device on
the SA Bus
+ and leads. -
Note: The SA/FC Bus Port (RJ-12 6-position
modular connector) provides 15 VDC on one of its
pins, which is used to power the MS-BTCVT.
Note: If the IOM controller is at one end of the SA
Bus daisy chain, set the End-of-Line (EOL) switch
to ON.
4. Connect power to the IOM controller.
5. Download and commission the IOM controller. See
the Commissioning section.
SA/FC Bus Port
The SA/FC Bus port on the front of the IOM is an
RJ-12, 6-position modular jack that provides a
connection for the Wireless Commissioning Converter.
See Table 1 for more information. The SA/FC Bus Port
pin assignment is shown in (Figure 7).
Sensor, SA Bus, or FC Bus Port
(RJ-12 Modular Jack)
Figure 7: Pin Number Assignments for
Sensor, SA Bus, and FC Bus Ports on
FEC, IOM, and VMA16
SA or FC Bus +
1
-
SA or FC Bus
2
Bus and Power Common
3
4
Power (15 VDC)
5
Bus and Power Common
6
Power (15 VDC)