HOCHIKI FNV-RM Remote Microphone Instruction Manual
- June 9, 2024
- HOCHIKI
Table of Contents
HOCHIKI FNV-RM Remote Microphone
The FNV-RM is a supervised remote microphone panel for use with the FNV 25/50
voice evacuation system. The purpose is to allow emergency voice messages to
be made over the system speakers from another location remote from the FNV
25/50 panel itself. The FNV-RM connects via 3 pair shielded cable to the FNV-
SC supervisory card, which is mounted within the FNV 25/50 panel. Fault
conditions in the wiring or in the remote microphone circuitry are reported to
the FACP through the same supervisory path as the
FNV 25/50.
OPERATION
When the FNV-RM microphone is keyed during an alarm condition, the alarm signal and digital message will be interrupted and live voice messages can be broadcast. In normal standby the microphone can be keyed to make announcements at any time. Any time an FNV-RM is keyed the In-Use LED will light on all other FNV-RMs, the other units will be disabled. This is to insure that only one operator is able to page over the system. If the master microphone in the FNV 25/50 panel is keyed it will override any remote microphone.
INSTALLATION
Installer must insure that all wiring and devices installed in the system meet the following standards:
- National Electrical Code (NFPA 70)
- NFPA Standard 72
- Life Safety Code (NFPA 101)
Install equipment in a clean, dry environment, avoid installation where equipment could be subjected to vibration. Remove electronic assemblies from the enclosure prior to any drilling or punching of the enclosure. Where possible, make all cable entries from the rear or sides. Before making any modifications to the enclosure, be certain that they will not interfere with assemblies. Insure all power is off before making any wire connections.
WIRING (Refer to wiring and terminal designation diagrams)
- Use 3-pair shielded wire (#22 AWG min.) from the FNV 25/50 panel to the FNV-RM remote microphone location.
- Attach snap-track to the FNV 25/50 cabinet. Mount FNV-SC Supervisory Card to snap-track.(May be factory mounted and wired)
- Make wiring connections as shown on WD-1. Where multiple FNV-RM units are used, insure that EOLR is used on last unit only. Apply power to test.
- Test FNV 25 primary microphone. Test FNV-RM remote microphone. Retest FNV 25/50 to insure that tone and message are broadcast.
Wiring Detail WD-1
TERMINAL DESIGNATIONS
TB2
- Ter. 1 – MIC PTT +24 10mA
- Ter. 2 – V+ 24 VDC 0.10A
- Ter. 3 – PTT +24V 10mA
- Ter. 4 – Audio 1vrms 10mA
- Ter. 5 – Ckt Neg.
- Ter. 6 – Fault +24V 10mA
- Ter. 7 – Earth Ground
TB1
- Ter. 1 – V+ 24 VDC 0.04A
- Ter. 2 – Ckt Neg.
- Ter. 3 – Fault +24V (Pull Down 10mA)
- Ter. 4 – PTT +24V 10mA
- Ter. 5 – Audio 1Vrms
- 10mA
FNV-RM
- EOLR is a 6/3 SIP 10K Resistor Network to be installed on last FNV-RM only.
- Maximum line resistance is dependent on of devices loading the line.
- 2 FNV-RM – 100W Max. Line Resistance
- 3 FNV-RM – 80W Max. Line Resistance
- 4 FNV-RM – 65W Max. Line Resistance
- 5 FNV-RM – 50W Max. Line Resistance More than 5 FNV-RMs is not recommended
SPECIFICATIONS
FNV-SC
- Input Voltage – 24 VDC
- Input Current – 0.030A DC Standby 0.050A DC Active
- Input Voltage – 24 VDC
- Input Current – 0.020A DC Standby – 0.040A DC Active
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