Special Features:

30 terminals, 18 of these terminals may be connected as 4-wire dtmf, dual tone multiple frequencies, interfaces dial pulse common battery supervisiion and dtmf 2-wire line, 20 hz ringdown 2-wire lines and trunks, 4-wire dtmf tone signaling terminals, dc 24v , 1.9a , 25.5 in. N, 12 in. H, 18 in d, designed for use in adverse tactical environment, operable in high humidity or rain, capable of immersion in 3 ft. Of water w/transit covers locked, transportable

Properties:

The components and items required to operate a complete wire conducted system specifically designed to provide a two-way voice communication with selective ringing. The system is normally common-battery operated, but may include provisions for the use of local batteries in each sub-station. May include provisions for connecting to other telephone systems. It may readily be used as a transportable or fixed system.