Field analog telephone TA-01.01
The telephone is designed to provide telephone communications as part of the subscriber networks of automatic switching systems, field communication systems, including public automatic telephone communication networks, manual switching systems, directly without the participation of switching systems and negotiating the radio station when using it as an end device radio communications.
The telephone provides for operation in the field under the direct influence of the external environment, as well as installation and operation at stationary objects.
The telephone allows connection to the public telephone network, meets the requirements of the current regulatory documents. Connection scheme – two-wire.
The telephone provides connection to automatic switching systems via a two-wire line in the mode with pulse and tone dialing.
Modes of operation of the telephone:
– local battery mode “LB”;
– central battery mode with a tone dialing number “CBT”;
– central battery mode with a pulse dialing number “CBP”;
– test mode “Test”.
| Parameter | Value |
| Direct connection with a device of the same type or telephone TA-57 in the “LB” mode via field cable lines: | P-275 cable – up to 20 km. P-274M cable – up to 40 km. |
| Programmability: | up to 10 numbers of at least 16 digits each |
| Power supply system: | local battery (LB) central battery (CB) |
| Power supply of the telephone from three variable dry elements of power supply of standard size D with voltage: | 1,5 V. |
| Continuous operation in transmission mode – not less: | 120 h. |
| Mean time to failure – not less: | 10000 h. |
| Average recovery time – no more than: | 30 min. |
| The time of transfer of the telephone to a working state from the storage state in a conserved state does not exceed: | 30 min. |
| The telephone is operated in climatic conditions: | |
| ambient temperature: | from minus 35º to plus 50º С |
| relative humidity: | no more than 98% at a temperature of 25º С |
| atmosphere pressure: | from 450 to 850 mm hg. art. |
| The mass of the telephone without dry power supply elements is no more than: | 2.8 kg. |
| Overall dimensions: | 280х200х100 mm. |
