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Digital signal processing audio frequency track circuit pick up units PP3S, PP4S
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Digital signal processing audio frequency track circuit pick up units PP3S, PP4S

Digital signal processing audio frequency track circuit pick up units PP3S, PP4S are to apply on railroad sections and underground railway. Size 228х84х230 mm.

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FEATURES

2 variants of power supply:

single-phase alternating current by frequency  50 Hz nominal voltage 17,5 V (divergence from 15,0 to 19,5V) 
DC current by voltage  24 V (divergence from 20 to 34 V) 
marked capacity  3,5 VA 
drop-off-to-pickup ratio  min 0,8 
entrance friction at the pass band average bandwidth is volatile between  120 Оm - 160 Оm 

the equipment provides device status data transfer to supervisory monitoring system 

 

power indicator and signal receive level 

 
weight  max 2,5 kg 
overall measurements length 228 mm, width 84 mm, depth 230 mm

the equipping is made in relay housing NSH   

 

DESCRIPTION

PP3S and PP4S are used for audio frequency track circuit diagnostics and data transfer to automatic block- and electric interlocking systems. operate with TRTSZ track circuits amplitude-shift keyed signals with carrier frequency 420, 480, 580, 720 и 780 Hz and TRTS 4 with carrier frequency 4 545, 5000 и 5555 Hz and manipulation frequency 8 and 12 Hz.

Field of use: the equipment is used on railroad sections and underground railway with different driving forces and in workstations indoor applications and Relay cabinets accommodation option.

The device is compatible with customary equipment TRTS3 and TRTS4.

Similar equipment: PP(PPM), PP1 (PP1M), PRTS4L, PRTS4L1, PP3, PP3M, PP31, PP41.

Hardware details:

  • superior Security due to dual-processor system

  • high interference elimination, 1st group, factor of quality «A»

  • existing problems data transfer to dispatch control system possibility

  • there is an automatic protection switch possibility in case if the equipping passes to the safe mode

  • temperatures range from -45° С to +80° С

  • supply voltage parameter stability

  • low consumed power

  • light weight

Component parts:

  • pick up units (number according to order)

  • demountable connector for covering layer removal (1 pcs per 10 devices or less, sent to one receiver)

  • certificate of equipment (1 pcs per a device)

  • engineering instruction (1 pcs per 10 devices or less, sent to one receiver)

We deliver the equipment around the Country and to the CIS region!

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