Honeywell IAQPoint2 User Manual page 1332

Wiring Details
Electrical Wiring
Network Wiring
Network wiring is no different than simple wiring, except that all units are
wired together in a "daisy-chain". The EOL jumper must be enabled on
the last unit in the chain.
IAQPoint Network Wiring Diagram
This drawing applies to units configured with either Modbus or BACnet
communication.
V+
Next
V-
V-
Previous
V+
Power and communication wires are connected from one unit to the next
unit in the "chain", as illustrated in the drawing: the wires come in to the
unit from the "previous" unit and can be wired from that unit to the "next"
until the network is complete.
LON (TP/FT10) communication connections are not polarity sensitive.
Please consult the Echelon documentation for further LON connection
details (http://www.echelon.com/support/documentation/manuals/routers/
078-0167-01B.pdf).
16
JP7
D6
D3
IAQPoint User Manual
B
Next
A
Shield
A
Previous
B
RS-485 COMMUNICATION
Communication Wire Gauge:
2-24 AWG (Belden 9841)
Twisted and shielded cable
2000 feet (600 m) per channel
T-tap: 65 feet (20 m) / T-tap
130 feet (40 m) total