DVC-EM
Digital Voice Command
Brand:
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- Programmable from NUP port using VeriFire® Tools.
- Up to 32 minutes of standard quality or 4 minutes of high quality digital audio storage of user-selected/created messages and tones. Supports twisted-pair wire media. Supports single- and multi-mode fiber-optic media when used with fiber option modules.
- 4-channel analog audio supported with optional DVC-AO
- Up to 1000 audio sequences.
- Message prioritization.
- Equations support flexible programming for distribution of messages.
- Electrically isolated digital audio ports for direct connection with up to 32 Digital Audio Loop (DAL) devices. Style 4 or 7 configurations supported.
- Optional DS-RFM, DS-FM, and DS-SFM fiber modules may be used to convert one or both Digital Audio Ports for operation with single-mode or multi-mode fiber.
- DCC (Display and Control Center) capabilities when used with optional DVC-KD.
- Firefighters’ Telephone Communications to local FFT riser on DVC, 32 local DAL device FFT risers, and FFT
communication to additional command stations via NOTI•FIRE•NET. - Local paging microphone option.
- Remote microphone options.
- Optional Digital Voice Command Remote Paging Unit (DVC-RPU), or DVC-RPU mode.
- Broad All-Call functionality when used with DVC-KD (DVCKeyboard Display): All Call, Page Active Evac Areas, Page Active Alert Areas, Page Inactive Areas.
- Auxiliary input for 12 Vp-p analog low-level audio sources. Includes user audio level adjustment feature.
- Auxiliary input accepts external audio sources such as telephone paging or background music. High impedance input accepts 600 ohm, line level, 1.0 VRMS, or 1.41 Vp-p low
level audio. Selectable AGC, user control of audio level, and audio supervision are supported. - Associated NCA-2, or NFS2-3030 (programmed for network monitor mode) supports NOTI•FIRE•NET applications.
- Multiple audio command centers supported via NOTI•FIRE•NET.
- Distribution of one channel of standard-level paging audio on NOTI•FIRE•NET.
- Three standalone, non-network mode options:
– NFS2-3030 (NUP to NUP) digital and analog.
– NFS2-640 (NUP to NUP) analog audio only.
– NFS2-640 with NCA-2 (NUP to NUP to NUP) digital and analog. - Push-to-talk relay, or logic argument.
- Isolated alarm bus input, to be used for backup activation of alarm messages in the event network communication is lost.
| Item Code: | DVC-EM |
|---|---|
| 24 VDC power (TB1): | 24 VDC, 1.0 A, non-resettable, power-limited by the source. Recommended wiring: 14 to 18 AWG (2.08 to 0.821 mm²) twisted-pair. |
| Digital audio ports, wire media, A and B (TB2, TB3): | Maximum distance per segment is 1900 feet (579.12 m) on Belden 5320UJ (18 AWG, TP) FPL cable: 18 AWG (0.821 mm²) twisted-pair, foil-shielded, power-limited. Consult wiring documentation provided in document P/N 52916ADD:C Addendum to DVC and DAA Manuals. |
| Digital audio ports, single- and multi-mode fiber-optic media: |
– DS-FM and DS-SFM fiber option module (no direct DAA connection): • 6.5dB maximum attenuation for multi-mode with 50/125 micrometer cable @ 1310 nm. • 10dB maximum attenuation for multi-mode with 62.5/ 125 micrometer cable @ 1310 nm. • 30dB maximum attenuation for single-mode with 9/125 micrometer cable @ 1310 nm. – DS-SFM (single-mode fiber DAA connection): • 17dB maximum attenuation for single-mode with 9/125 micrometer cable at 1310 nm going from the DS-SFM to the fiber DAA. • 4dB maximum attenuation for single-mode with 9/125 micrometer cable going from the fiber DAA to the DSSFM. • 12dB minimum attenuation going from the DS-SFM to the fiber DAA. – DS-RFM (multi-mode fiber DAA connection): • Attenuation going from the fiber DAA to the DS-RFM: • 2dB maximum attenuation for multi-mode with 50/125 micrometer cable @ 850 nm for the DS-RFM. • 4dB maximum attenuation for multi-mode with 62/5/125 micrometer cable @ 850 nm for the DS-RFM. • Attenuation going from the fiber DS-RFM to the fiber DAA: • 12dB minimum* attenuation, 16dB for both cable types. Notes: 1. If the length of the fiber run results in an attenuation of less than 12dB, a suitable attenuator must be used. 2. ST® Style connection required at DAA end of any fiber connection. LC style connectors are required for the DSFM, DS-RFM, and DS-SFM. |
| Auxiliary input A (AUX A, TB4): | Signal strength from lowlevel analog audio input: maximum 1.0 VRMS, or 1.41 Vp-p. Optional supervision is selectable through programming. Recommended wiring: 18 AWG (0.821 mm²) twisted-pair; max. 14 AWG (2.08 mm²). Auxiliary input must be in the same room as the DVC |
| Auxiliary input B (AUX B, TB14): | Signal strength from low-level analog audio input: 12 Vp-p nominal, 15 Vp-p maximum. Optional supervision is selected through programming. Recommended wiring: 14 to 18 AWG (2.08 to 0.821mm²) twisted-pair. |
| Remote microphone interface (TB9): | Recommended wiring: 14 to 18 AWG (2.08 to 0.821 mm²) twisted-pair. Powerlimited. Maximum distance between remote microphone and DVC: 1000 feet (300 m). |
| Push-to-talk interface (TB10): | Dry contact. Recommended wiring: 14 to 18 AWG (2.08 to 0.821 mm²) twistedpair. |
| Alarm bus (TB12): | Power-limited by source. Recommended wiring: 14 to 18 AWG (2.08 to 0.821 mm²) twisted pair. |
| FFT riser (TB13): | Power-limited output. Class A (Style Z) or Class B (Style Y) operation. Style Y two-wire connections require a 3.9K ohm, 1/2 watt resistor (P/N K-3.9K). Maximum wiring resistance (including individual telephone zone to last handset) permitted is 50 ohms, 10,000 feet (3048 m) maximum wiring distance at 12 AWG (3.31 mm²) to last handset. |
| Optional DVC-AO analog audio output circuits (TB5, TB6, TB7, and TB8): |
Supervised, power-limited outputs. Signal strength: +12 Vp-p nominal, +15 Vp-p maximum. Recommended wiring: 18 AWG (0.821 mm²) twisted-pair; max. 14 AWG (2.08 mm²). Maximum impedance: 66 ohms. |
