Simplex 4007-9803 — IDNet 2 Loop Expansion Module for the 4007ES fire alarm control unit.
A 4007ES leaves the factory with one isolated IDNet 2 signalling line circuit carrying up to 100 addressable points. This is how that is grown without a second panel. Data sheet S4007-0001 Rev. 22 describes it as providing an additional isolated loop with short circuit isolation to the existing IDNet 2 channel, plus 75 more addressable points, to a maximum of two.
- Adds one isolated loop with short circuit isolation to the existing IDNet 2 channel
- Adds 75 addressable points of capacity; maximum of two modules
- Takes the panel from 100 to 250 intermixed monitor and control points
- Above 125 device loads the channel limit tightens from 4,000 ft. at 50 Ω to 2,500 ft. at 35 Ω
- Two dedicated module positions inside the 4007ES enclosure
- Also a 4017ES service part, named there the IDNet+ Loop Expansion Module
It expands the existing channel rather than adding a second independent one. Do not confuse it with the other field-installed modules in that block: 4007-9801 zone/relay, 4007-9802 25 VDC regulator, 4007-9804 dual Class A IDNAC isolator.
