RA708 Series

These telephone instruments are fully contained within a corrosion resistant cast aluminium weatherproof case with a self-closing door providing complete protection against dust and moisture ingress, resulting in a highly reliable product with a long MTBF.

The unique robust handset is manufactured from moulded polyurethane and designed specifically to withstand arduous use in all environments, it can be fitted with an armoured cord, if required, to provide additional resistance to vandalism or heavy industrial use.

The RA708 Weatherproof Telephone is designed for use by the railways, power stations, the armed services and heavy industry which require very reliable telephony under adverse conditions.

Powdercoat finish available in Yellow or Grey, durable and resistant to discolouration yet easily cleaned. Telephones can be wall mounted, side of pole mounted or, by utilising specific bracket, top of pole mounted. Installation is simple and quick via M20 cable glands on to fast-fit connectors which are accessed without the need for dismantling the telephone body.

Key features

– Robust construction – Full Keypad, Lift & Dial or C.B. (Hot line)
– All weather protection – Auto-dial option
– Vandal resistant – Non-volatile memory
– Tamper resistant fixings – Line powered
– Simple installation – Tough polyurethane handset
– Fast-fit terminal connection – REN-1 rating
– Various mounting options – Lockable door option

Available options

Ordering information:
Part number: RA708 – 1 – 2 – 3
1 = FK or CB (Full keypad or CB/hot dial version)
2 = Y or G (Yellow or Grey)
3 = C or S (Curly cord or Steel/armoured cord)

Technical Specification

Speech/ Network Interface:
Tested to TBR21/TBR38
Frequency modulated, Piezo transducer, cadence as per incoming ringing. REN 1.0
Power Supply:
Line powered, 10mA min.
Time out:
Jumper selectable: OFF, 3 or 7 minutes
Operating: -30° C to +60°C
Storing: -40° C to +70°C
Relative Humidity:
Up to 95% (non-condensing)
Casing Material:
Robust cast aluminium.
Standard Yellow or Grey durable powder coat. [custom colours available].
Manufactured to BS EN 60950 EN55022:1998 (EMC – Emissions) EN50121-4:2006 (EMC Compatibility – Railway applications) ITU-T K21 (Resistibility of telecommunications equipment installed at customers premises to overvoltages and over-current)
Dust and Liquids to BS 5490: 1977 IP55
Handset ‘Wrench’ Test:
Curly Cord: 18kg Max. Armoured Cord: 150kg Max.