Digital Telephone Voice Recording Interfaces
Analogue Audio/Telephone Recording Interfaces
Covert Audio/Video Security System
Audio System / Dealer Board Interface Analogue Telephone Signalling Converters

High Voltage Spike Filter Box. Voice Recording Spike Filter.

Previous Page


Spike filter will reduce harmful high energy noise spikes in cabling systems from interference from external sources, e.g. switching of traction current in Railway networks.

Will help to reduce false calls when Voice Recording.

4 or 8 channel versions.

Screw terminal input to allow connection to any type of wire e.g. stranded or solid.

RJ11 output connectors configured to match inputs on recording equipment.

Transparent to speech.

Signal level limited to prevent over load by low voltage Schottky diodes.

Standard 19 rack mounted.

. RoHS Compliant.

Reduction of large voltage spikes.

. DC blocking and low frequency attenuation to
reduce subsonic effects.

. Spike and high frequency attenuation with
passive CR networks.

. Final filter and DC blocking stage on
outputs to recording equipment.

Low cost solution.

. Robust rack mounting or desktop steel
enclosure 165mm x 88mm x 29mm


Lightning and fault condition protection by
Gas discharge tubes on all channels (90v).

Full isolation from the telephone
lines via BABT approved
Etal P1200 barrier transformer
Approved to EN 60950 and EN41003
BABT Certificate of Recognition
CSA / NRTL Certified to CSA C22.2
No 950 - 95 / UL 1950
Freq Response 200Hz - 4 kHz
Isolation 50 Hz > 3.88 kVrms
Balance DC - 5 kHz > 80dB
cheap nba jerseys australia cheap ghds uk ghd factory outlet cheap ghd sale nz


Rolex (ROELX) in 2014 in Basel, Switzerland, the rolex replica international exhibition, the introduction of a new series of Rolex cut series, became the hottest watch. Under normal circumstances, in breitling replica order to show the dignity of the identity and modesty of the ceremony, the men will be put on formal occasions to attend a formal dress, but also with a formal watch, appears to be more polite. Rolex watches have long always gives people a kind of replica watches heavy feeling of strength, and most are steel watch, so when wearing a dress of many fans will not choose Rolex, the reason is not elegant decent, wild. But the rolex replica watches new Rolex Cellini series make up for this defect, presented in front of us is a pure and yet elegant dress watch.