Honeywell IAQPoint2 Guide De Démarrage Rapide page 187

Wiring
Wiring
Guidelines
Electrical wiring must comply with all applicable codes. Operating
conditions and site equipment that may be involved should be discussed
with local operating personnel to determine if any special needs should
be considered.
Ground the shield at the main control panel. Connect the shield wire in
the sensor terminal block labelled shield. Tape all exposed shield wire at
the sensor to insulate it from the enclosure.
Electrical Power: 24 VDC/VAC nominal, 0.35 amp maximum. Either AC
or DC may be connected to the terminal block.
Output: Circuit board mounted sensor provides a linear 4-20 mA output.
Monitoring equipment may have a maximum impedance of 500 ohms.
Wire: Signal wiring should be done with #20-24 AWG shielded twisted
pair cable Belden 9841 or similar. Network units should have no more
than 2,000 ft (600 m) of #22 AWG wire. Smaller gauge sizes are limited
by the same resistance limit.
Power wiring should be sized by local codes, but never less than #20
AWG. 120 VAC wiring should be #14 or #12 AWG.
6 E Point Standalone Gas Monitor User Manual
3