Usage: At the level of fronts and army since 1976.
Purpose: It was used to connect the "start - stop" of inputs and rendered participant telexes, with secret telegraph channels. The front part consisted of two telegraph connectors with STA-2MF teletype and the back part of other devices for long-distance communication. In the rear part, there was also a supervisory workplace with line dispatching, for the chief of telegraph secretaries.
Allowed by: Connection of 24 telegraph channels in 4-wire mode, from the main step of the connecting node to BTG-40 blocks and their division into 12 ZAS telegraph establishments. Commutation between blocks BTG-40 and BRTG-20, with the possibility of continuous control of 10 spare channels, with signaling of worsening telegraph distortion or channel failure. Status measurement, control and setting of the telegraph channel, using the ETI-69 device. Commutation of 70 telegraph channels in the "start - stop" mode, connected from the ZAS facilities to two KTG-10D telegraph switches. The jumpers could create a transit connection between the "start-stop" outputs of the connected establishments. Connection of rendered telexes to switches, using AŠČA-M1 cabinets.
Crew: Chief of the establishment, two telegraph operators and the driver of the vehicle.
Kit composition: P-317 - tone telegraphy device (3,050-3,250 kHz). STA-2MF - teletype tape machine. AŠČA-M1 - box for connecting the rendered teletype to the establishment. ETI-69 - instrument for measuring telegraph distortion and relays. BTG-40 - long distance commutation block. BRTG-20 - block of termination and control of reserve telegraph channels. KTG-10D - telegraph switch "start - stop" inputs and outputs 2pcs. LD - line dispatching for 15 participants. PPU-M - intercom control block with driver's cab. ŠČAZ - automatic overvoltage protection. R-105M - simplex VHF radio station (36-46.1 MHz). PNS 15-12/4,8 - power converter for R-105M. BIU-A - amplitude-selective block, for selection of R-105 in the network. ŠČPOV-1 - 12V distribution block and heating control. TA-57 - field telephone set MB/CB with rdst keying. FVUA - filtration-ventilation equipment of the establishment.
Prepojenie prevádzkarní a vynesených účastníckych ďalekopisov s ústredňou P-245T.
URL : https://www.valka.cz/SOV-P-245T-telegrafna-prevadzkaren-ustredna-t198373#568981
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