TELH-1

Firefighters’ Telephone Handset

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Categories: Fire Detection & Alarm Systems (FDAS), Notifier Devices & Accessories Tag: Notifier Brand: Notifier

Key Features
Specifications

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:	TELH-1
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.
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.
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 0.821 mm²) 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) twistedpair.
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.