Roadside Emergency Telephone Type 3540 pages

GAI-Tronics Capability
Type 354 Emergency Roadside Telephone
The 354 ERT is a high-visibility emergency telephone,
which may be configured to meet different installation
requirements. Unlike its predecessor, the Type 352A (also
made by GAI-Tronics), the Type 354 offers a range of
innovative features that greatly improve the clarity and
functionality for both the user at the roadside, and for the
operator monitoring calls in the Control Office.
By utilizing a sophisticated Noise-Cancelling system, the
Type 354 gives improved audio performance both for the
road user and the Control Office operator. In addition the
innovative use of non-voice communications enables the
ERT to be used by people who have difficulty
communicating in spoken English (e.g. the hard of hearing
or non- English speaking). 6 languages are supported by the 354 ERT- English, French, German, Italian,
Spanish and Welsh
The ERT’s many innovative features include:

display for user prompting, volume control and non-voice communication

stylish ergonomic design

patented safety design meeting latest European Standards. BS EN 12767

environmentally friendly with solar cells and very low power consumption

low maintenance costs and increased reliability

rapid installation and replacement

comprehensive diagnostics including automatic self testing and reporting
Variants
There are three main electrical variants of the Type 354 ERT:
NMCS II
Public Switched Telephone Network (PSTN)
GSM
A feature of the Type 354 design is its modular construction. This allows the ERT to be installed in a variety
of applications such as bridge parapet and tunnel situations as well as the more normal columnar version.
The standard column mounted ERT comprises:
The Column Module
The Telephone Instrument Module
The Header Module
There are a number of variations of these modules to cater for specific
installations, including:
Parapet mounting variant (2/4 wire NMCS/ PSTN)
Wall mounting variant (2/4 wire NMCS/ PSTN)
Parapet mounting variant (GSM)
Wall mounting variant (GSM)
Tunnel variant (2/4 wire NMCS/PSTN) Module Assembly
Recess variant (2/4 wire NMCS/PSTN)
To establish a call the user simply lifts the handset to initiate the call and connect to the control facility. In
addition, there is a variant of ERT known as the ‘user service selection’ which allows the user to select a
service prior to the initiation of a call and the ERT dials the appropriate telephone number for the service
selected.