PAPER INSULATED TELEPHONE CABLES - subscriber, trunk and long-distance Carrier Frequency cables 0,32-1,2 mm dia. and the biggest construction of 2400 pairs. These cables are lead or aluminium sheathed with suitable mechanical protection of steel tapes or wires and anti-corosive protection.
THERMOPLASTIC INSULATED TELEPHONE CABLES - are provided for application in subscriber,-trunk and long-distance lines. Cable insulation consists of full PE, expanded PE, with or without foam skin, PVC or polyamide. All these cables contain PE insulated conductors, 0,4-1,2 mm dia. in pairs or quads, with the biggest construction up to 1300 pairs. Core of these cables can be filled by petroleum jelly, and sheath is in most cases in combination with AI-copolymer tape stucked to PE sheath. Installation cables for main telephone exchange, PVC or polyamide insulated belong to this group of cables.
COAXIAL TELEPHONE CABLES - for main distance purposes. They consist of coaxial pairs 1,2/4,4 and 2,6/9,5. Cable construction of 2-3 coaxial pairs are intended for systems of 2700, 3600 and 10300 telephone channels, i. e. for digital systems of 34, 140 and 560 MBit/s. Cables have smooth or corrugated AI sheath and suitable mechanical protection of steel tapes.
CABLES FOR DIGITAL TRANSMISSION (PCM) - 2, 3, 34 and 140 MBit/s signals, with full or expanded PE insulation. Cables for 3 MBit/s systems consist of screened quads.
SIGNAL-TELECOMMUNICATION RAILWAY COMBINED CABLES, are manufactured with coaxial pairs 1,2/4,4 and quads of conductor 0,9-1,2 mm dia. with Al sheath and steel tapes armour. In this range, small values of reduction factor due to specific energy influences are achieved.
SIGNAL CABLES AND CABLES FOR MEASURING-SETTING TECHNIQUE PVC or PE insulated cables, with conductor 0,5-1,8 mm dia., with or without steel tapes armour and PVC or PE outer sheath.

They are applied for following purposes:

signalling of railway traffic
signalling and communication in mines with shaft and open pits
data transmission in electro-distribution systems

RF AND CATV COAXIAL CABLES - Coaxial cables with characteristic impedance of 50, 60, 75 and 93 Ohm, with insulation of full or foamy PE or teflon with outer conductor in form of braid or copper and aluminium tapes longitudinaly set, with overlap and PVC or PE outer sheath.

These cables are applied for following purposes:

transmission of high-frequency signals in receiver-transmission technique
transmission of TV signals in VHF and UHF range
transmission of cable TV closed systems.

OPTICAL CABLES - Cables with multimode & monomode optical fibres for application at a wavelength of 850 , 1300 and 1550 nm and attenuation from 0.4 dB / km till 0. 25 dB / km respectively,according to world-known standard requirements : CCIT, EIC, BS and VDE.

Cables can be filled with waterproof compound, with or without armour of steel tapes and wires, or steel braid and with outer PVC or PE sheath. It is possible also to make non-metalic optical cables and in complex with power cables.

These cables are applied for following purposes:

Transmission of PCM signals with bit speed 2, 34, 140, 560 and 622 MBit/s
Signalling and data transmission in computer technique, power suply network and railway trafficp

Cables are applied as conduit, for a layed into earth , self-supporting and flexible hookup, factory length up to 4000 m .

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