TA-312~PT
The TA-312/PT and the TA-43/PT are two-wire, battery-operated field telephones. They may be used in a point-to-point wire system or in any two-wire ring-down subscriber position of a telephone communications system. The Handset H-60 contains a push-to-talk switch which connects power for talking. The TA-312/PT has a built-in Receptacle Connector U-79/U for use with a headset and an associated EXT-INT switch; the TA-43/PT does not. The TA-43/PT is being replaced by the TA-312/PT. The TA-955/PT dual tone multi frequency (DTMF) adapter allows push button operational interface with automatic analog switches.
Technical Characteristics
- Range
- Wet
- Approximately 22.5km(14mi) on WD-1/TT (36 dB working limit)
- Dry
- Approximately 36.4 km (22 mi) on WD-1/TT (36 dB working limit)
- Type of Operation
- Common Battery
- Voice transmission and signaling power supplied by switchboard
- Local Battery
- Voice transmission power supplied by two BA-30s, signaling power supplied by a hand-crank generator
- Common-Battery Signaling
- Signaling power supplied by switchboard, voice transmission provided by two BA-30s
- Signaling (Outgoing)
- Handgenerated, 90 to 100VAC, 20Hz
- Signaling (Incoming)
- Audible tone, adjustable volume
Other Images
Related Files
- Operator’s and Direct Support Maintenance
- Repair Parts and Special Tools List
- Telephone Sets
- TA-312/PT (5805-00-543-0012)
- TA-312A/PT (5805-01-217-7310)
- 1 January 1987