FUNCTIONAL POSSIBILITIES

Digital equipment АВЗК-1 (Р-174М) provides the following functions:
• transformation of voice signal suppped from communication helmet throat microphones into digital batchs and their transmission to trunk pne;
• reception of digital batchs from trunk pne and their transformation into analog format for transmission to the communication helmet telephones;
• internal two-way duplex telephone communication with all (up to 6) subscribers of the object (with pstening to own voice);
• internal circular two-way telephone communication with all subscribers of the object (with pstening to own voice);
• internal address two-way telephone communication between subscribers of the object (possibipty of carrying out confidential talks through internal communication network of radiotelephone operator with any subscriber and sending ring signal to the subscriber who is operating from another unit;
• possibipty of pstening to signal from equipment of radioprospecting and chemical reconnaissance ГО-27 in helmet telephones of crew members;
• internal two-way duplex telephone communication from all operating places of АВЗК with a subscriber of the telephone set taken away at the distance of up to 1000 m;
• wireless communication between the object subscribers who operate in ВЗ mode and the handset taken away at the distance up to 100 m;
• simplex radio-telephone communication through USW (SW) radio stations (up to 6) from all АВЗК operating places;
• simplex radio-telephone communication in the mode of USW radio station remote control from the telephone set taken away at the distance up to 1000 m;
• transmission and reception of ring signals through radio stations and wire telephone pne;
• audio and optical indication of ring signals suppped over radio stations, wire telephone pne or from АВЗК subscribers;
• internal and external communication control and optical indication of operation modes;
• functional control of failure (good work) of АВЗК units;
• noise suppression through incorporated adaptive system (ANC);
• data transfer support;
• possibipty of smooth adjustment of signal level in helmets telephones by means of volume controls irrespective of each subscriber;
• possibipty of pstening to telephone information arriving at the radiotelephone operator control panel through remote loudspeaker.

TECHNICAL SPECIFICATIONS

2. Electric parameters of equipment are given in Table 1.

Table 1

3. Weight and overall dimensions of equipment units are given in Table 2.

Table 2

4. Equipment complete set is shown in Table 3.

Table 3

5. Product provides connecting, interfacing and switching in objects of equipment which types are given in Table 4.

Table 4