3-5
The 4010 uses addressable IDNet devices (smoke and heat detectors/sensors and
pull stations, 4009 IDNet NAC Extender, etc.). The 4010 supports 250 devices
on a single pair of wires on a single channel.
The IDNet channel supports Style 4 and 6 as part of the base system. Refer to
the 4010 Field Wiring Diagram (842-058) for all wiring information.
IDNet communication also supports the detection of duplicate devices. IDNet
detects if two devices are set to the same address. This function is activated
from the front panel (see IDNet Diagnostics in the Diagnostic/Troubleshooting
section of this publication).
Use the information below to wire the IDNet communication lines (14-18 AWG)
to TB4 located in the upper right corner of the SFI/O.
• To connect Class A wiring, wire the “B” terminals (TB4-1 and -2) to each
device in succession without T-taps (observe polarity). At the last device in
the loop, return the B+ wire to the A+ terminal (TB4-4) and the B- wire to
the A- terminal (TB4-5).
• To connect Class B wiring, jumper B+ to A+ and B- to A- using 14-18
AWG insulated wire (T-taps are allowed). Connect B+ to all devices
(positive connection) and connect B- to all devices (negative connection).
Figure 3-4. IDNet Connections
IDNet Wiring
Overview
Terminal Connections
TB4
6 5 4 3 2 1
IDNet Comms
A- A+ SHLD B- B+
Wirin
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