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The Vanguard Model: V25-70 Fireman Intercom / Two-way Emergency Voice Communication System's modular design allows the system to be expanded to suit a wide range of buildings.

Simplicity and Reliablity are two key concepts that has been designed into the system.

Simplicity
Frequently used function such as answering incoming calls require only lifting of the Master Handset. Placing calls to remote handset require only one button press. Important system status are provided with individual indicators e.g incoming calls and handset fault indication.

Reliablity
Continous supervision of all remote handsets for faults with fast, clear indication when a fault is detected. Battery and system charger are monitored to ensure that any system malfunction are quickly and clearly annuciated.

Features:
- Modular design: Each Handset Zone Selector Module controls and supervise up 10 zones
- Dedicated call buttons: One press operation - easy to use even during emergencies
- Initiate calls: Able to initiate calls to remote handsets
- Dedicated indicators: Incoming calls and handset faults are indicated by dedicated indicators
- Privacy mode: Ensures confidentiality
- Boost charge facility: Faster recharging of battery after a power outage
- Lamp test facility: Quickly test all indicators with one button

	Model: V25-71  Features -   Battery charging and supervision -   Digital Volt and Amp meter -   AC/ DC fuse protection -   Float and boost charge mode -   Auto boost charge cut off  -   Internal AC mains switch & fuse  Specification -   Size: 110 (w) x 316 (h) x 110 (d) mm -   Weight: 1750 gram -   Material: 16 gauge sheet steel -   Finish: Powder coated paint, beige white -   Input: 230 VAC -   Output: 28.8 V ± 0.5 VDC, 4A* -   DC Fuse: 5A*-   Battery Fuse: 3A* -   Output Fuse: 1A*  Configuration One module per system, compulsory * Ratings for system above 80 zones available on request
	Model: V25-72  Features -   System fault annunciator -   Common fault indicator -   Audible buzzer -   Call, Busy, Ready tone generator -   Supervisory circuit    Specification -   Size: 110 (w) x 316 (h) x 52 (d) mm -   Weight: 350 gram -   Material: 16 gauge sheet steel -   Finish: Powder coated paint, beige white -   Input: 15 VDC -   Quiescent current: approx. 25mA -   Lamp Test Current: approx. 200mA  Configuration One module per system, compulsory
	Model: V25-74  Features -   Support 10 Remote Handsets -   One press operation -   Individual Call and Fault indicators -   Individual Select buttons  Specification -   Size: 110 (w) x 316 (h) x 100 (d) mm -   Weight: 510 gram -   Material: 16 gauge sheet steel -   Finish: Powder coated paint, beige white -   Input: 15 VDC -   Quiescent current: approx. 25mA -   Lamp test Current: approx. 200mA  Configuration One module for every ten Remote Handsets, compulsory Note: Requires one Line Supervisory Card (V25-74.1, not shown) per connected Remote Handset .
	Model: V25-73 Features -   Master Handset -   CPU circuit Specification -   Size: 110 (w) x 316 (h) x 100 (d) mm -   Weight: 630 gram -   Material: 16 gauge sheet steel -   Finish: Powder coated paint, beige white -   Handset: Red Hi-impact ABS plastic -   Input: 24 VDC -   Quiescent current: 20mA -   Ring Tone: 2 kHz -   Microphone: Carbon -   Output impedance: 300 -1K ohm -   Frequency Response: 200 – 3450 Hz  Configuration One module per system, compulsory
	Model: V25-79  Features -   Auto recording, starts recording when Fire Alarm is activated -   Records both Fireman Intercom communication and One-way Emergency Voice Comm. annoucements -   Digital time lapse indicator -   Cassette status monitoring   Specification -   Size: 110 (w) x 316 (h) x 100 (d) mm -   Weight: 630 gram -   Material: 16 gauge sheet steel -   Finish: Powder coated paint, beige white -   Input: 24 VDC -   Quiescent current: 200mA  Configuration Optional. Note: Module includes cassette deck, mounted externally (not shown)
	Model: V25-75  Features -   Housed in heavy gauge steel -   Lockable housing with breakglass door release -   Top and bottom entry -   Retractable cord  Specification -   Size: 180 (w) x 386 (h) x 88 (d) mm -   Weight: 3950 gram -   Material: 16 gauge sheet steel -   Finish: Red enamel coating -   Handset: Red Hi-impact ABS plastic -   Input: 15 VDC -   Quiescent current: 20mA -   Ring Tone: 2 kHz -   Microphone: Carbon -   Output impedance: 300 -1K ohm -   Frequency Response: 200 – 3450 Hz  Configuration Quantity depends on site requirement, compulsory
	Model: V25-75.1J  Features -   Portable Handset with jack  Specification -   Size: 110 (w) x 316 (h) x 100 (d) mm -   Weight: 630 gram -   Handset: Red Hi-impact ABS plastic See V25-72 for elect. specification  Configuration Depends on project requirement.
	Model: V25-75.1SK Features -   Surface and flush mounting type  Specification -   Material: 16 gauge stainless steel -   Surface: 85 (w) x 85 (h) x 40 (d) mm -   Flush: 80 (w) x 85 (h) x 40 (d) mm -   Weight: 350 gram  Configuration Depends on project requirement