Features
Dual port, bi-directional communications short
circuit isolator:
- Compatible with Simplex ® 4007ES, 4008, 4010ES, 4100ES, or 4100U Series fire alarm control panel IDNet Signaling Line Circuits (SLCs) providing: IDNet, IDNet+, IDNet 1+, IDNet 2, or IDNet 2+2 output loops (see additional information on pages 2 and 3)
- Either port can serve as an input or output, ports are automatically separated when a communications short circuit occurs
- Isolation can also be activated from the control panel for system diagnostics
- Mounts in standard 4” (102 mm) square electrical box, optional adapter plate is available to mount in a 4 11 ⁄ 16 ” (119 mm) square electrical box
- LED flashes to indicate communications; optional covers are available to view LED after installation
- TrueAlarm sensor base IDNet Isolators are also available, refer to data sheet S4098-0025 for details
- UL listed to Standard 864
Earth fault isolation reduces time to fix wiring problems:
- Built-in control panel diagnostics assist in locating
earth fault conditions – the most common installation
wiring problem
For Class B or Class A wiring:
Operation
- Communications are monitored from either port
- Class A wired SLCs can optimize operation by maintaining communications with devices outside of the isolated wiring section
Description
4090-9116 Addressable IDNet Communications
Isolators provide IDNet communications isolation to
improve installation convenience and increase system
integrity. Isolation is automatically activated when an
output short circuit is detected and isolation can also be
selected manually from the control panel to assist with
troubleshooting wiring problems.
Operation. Isolators power-up in isolation mode and are
directed to connect by the control panel. If the output
wiring is acceptable, the isolator will connect to the rest
of the circuit. If the output wiring is shorted, the isolator
remains isolated.
Status Tracking. The isolator reports back to the panel
when it is in isolation mode and the extent of shorted
wiring is reported back to the panel by identifying device
addresses that are not communicating. [Isolators are
assigned sequentially to low number addresses to expedite
SLC power-up.]
Earth Faults. During installation, earth faults frequently
occur. Finding these faults normally requires extensive
wiring disconnection. With the 4090-9116 Addressable
IDNet Isolator, earth faults on the IDNet communications
lines can be quickly located to assist in their repair and to
restore the system wiring to normal.
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