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This section contains field wiring guidelines and instructions for the MAPNET transceiver
modules.
Make sure these guidelines are accounted for before wiring:
• All wiring is supervised.
• MAPNET II communication power: 40 VDC @ 0.5 A, 3333 Baud.
• Refer to instructions packaged with each addressable device for its wiring connections.
• Any wiring leaving the building requires 2081-9044 Overvoltage Protectors where it
leaves the building and another where it re-enters the building. Only four protectors total
are allowed per MAPNET channel.
• Up to 43 Sounder Bases are allowed on a MAPNET channel, when used for coded
operation.
• If Class A wiring is not used, the 733-678 Harness remains installed. Leave the 733-678
Harness on all unused loops.
• Up to 2 isolator boards per MAPNET channel are allowed.
• All wires must be 18 AWG, or as the local code dictates.
• Conductors must test free of all grounds.
• Wiring to IO terminals must not be run with AC wiring.
• Power must come from a Simplex-approved power supply.
• All wiring must be done using copper conductors only, unless noted otherwise.
• If shielded wire is used,
- the metallic continuity of the shield must be maintained throughout the entire cable
length.
- the entire length of the cable must have a resistance greater than 1 Megohm to earth
ground.
• Underground wiring must be free of all water.
• In areas of high lightning activity, or in areas that have large power surges, the
2081-9027 Transient Suppressor should be used on monitor points.
• Wires must not be run through elevator shafts.
• Wires that run in plenum must be in conduit.
• A system ground must be provided for earth detection and lightning protection devices.
This connection must comply with approved earth detection per NFPA780.
• Only system wiring can be run together in the same conduit.
Continued on next page
Wiring the MAPNET Channel
Overview
General Guidelines
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