Notifier DVC-EM Digital Voice Command
The heart of the Notifier audio command centre, giving voice evacuation for emergency communications and mass notification, with 8 simultaneous messages and networking across a campus or large facility.

Dealer for NotifierA distribution board that adds digital bulk audio evacuation to the DVC system, converting digital audio to analogue and routing it to amplifiers and optional backups.
Standards and approvals: NFPA 72 2007 National Fire Alarm Code, Underwriter Laboratories Standard UL 864, Underwriter Laboratories of Canada (ULC) ULC-S527-99, Part 15 Class A conducted and radiated emissions as, UL Listed: S635, ULC LIsted: S635, CSFM: 7165-0028:0224 (NFS2-3030); 7165-0028:0243, FDNY: COA#6065 (NFS2-3030): COA#6085 (NFS2-640)
| Specification | Details |
|---|---|
| Digital Audio Ports, wire media, A and B | EIA-485 protocol, power-limited. Maximum distance per segment is 1900 feet (579.12m) on Belden 5320UJ (18AWG, TP) FPL cable: 18AWG (0.821 mm2) twisted-pair, unshielded, power-limited. |
| Digital Audio Ports, fiber media, fiber option modules | Dig- ital audio loop connectors support single- and multi-mode fiber with the use of fiber option modules. Refer to the fiber option datasheet for fiber specifications. |
| Alarm Bus | Power-limited, supervised by source. Recom- mended wiring: 14-18 AWG twisted-pair. Requires 16VDC minimum @ 20mA across the terminals to activate. Nominal 24VDC. |
| FFT Riser | Power-limited output, supervised. Class A or Class B operation. Class B 2-wire connections require a 3/9k ohm 1/ 2 watt resistor (PN R-3.9K). Max. wiring resistance (including individual telephone zone to last handset) permitted is 50 ohms, 10,000 ft (3048 m) max. wiring distance at 14 AWG to last handset. |
| DS-BUS | EIA-485 protocol, power-limited. DS-BUS points must be installed in the same enclosure or within the same room in conduit. End points require end-of-line resistors. |
| DS-DB endpoint | set termination switch (SW8)to ON. |
| DS-AMP endpoint | add 120 ohm resistor on empty TB1 ter- minals. |
| AMPS-24 endpoint | resistor is present, and power supply must be an endpoint. |
| Audio Out | Power-limited outputs (exception: an output pro- grammed for “Riser Mode to Control Modules”, “Riser Mode to RSM-AIM Series Modules”, or “Riser Mode to CIM/CSM Series Modules” is non-power-limited.)Up to 125 Watts output. |
| Primary and Backup 1 thru 4 | Four DVC-AO-level audio out- puts for connection to amplifiers. Non-power-limited inputs. |
| OUT | Four DVC-AO-level audio outputs for connection to amplifiers. Power-limited. Supervision programmable. Amplifi- ers must be installed in the same enclosure or within the same room in conduit. 14-18 AWG, twisted-pair, unshielded. |
Specifications as published by Notifier. Please confirm the exact model with us before ordering.
The heart of the Notifier audio command centre, giving voice evacuation for emergency communications and mass notification, with 8 simultaneous messages and networking across a campus or large facility.
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Try "landing valve", "Apollo call point", "9 kg ABC" or a model code.
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