ETL UK
Electromatic Tele-Link Ltd
AMPHITECH 2-Wire Bus Intercom System V2
Description
→ 2-wire intercom modules, bus-powered
→ Main function: Emergency call stations for lifts
→ Goal: Establishing a network of intercommunication between the lift car and Motor Room and/or FSAL intercom station
(Fireman’s Floor) and Security Room or Porter’s lodge intercom stations.
Pre-requisite
→ Selection of modules: Lift car, fire fighter or security room stations
→ Features of the 2-wire bus
Number of lift cars: 12 (or 6 with FSAL stations operating in accordance with EN 81-72)
Power supply of an installation with 2 modules: 12 V / 24 V DC (direct feed)
Power supply of a multi-module installation: 12 V DC, AMPHITECH 2-wire bus (bus-powered)
Maximum cable length: 500 m from the power source
Configuration of the modules: Dip switches
Configuration of the emergency call button: NO / NC
Compliance with the European standards
→ EN 81-28, EN 81-70: call filtering input, 2 outputs controlling the pictograms
in the lift car, compatibility with the acoustic inductive loop amplifier (AD28xx)
→ EN 81-72 (use in fire fighter lift cars)
Installation
→ Easy to install: Using only one pair and one power supply unit
→ A 1-pair cable – minimum wire section 0,7 mm2
Accessories
