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

Dialup monitoring module (EH5) AUTO ANSWER UNIT (EH5)

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Application

The ACL Digital auto answer unit is a stand-alone, plug top powered interface for connecting dial in telephone lines to remote access ports of communication recorders or Public addressee systems or dial in ports of broadcast systems.

Features

The key features off the unit are.
· Manual seize.
· Manual release.
· Speech LED.
· Line LED.
· PWR LED.
· Adjustable gain detection.
· Adjustable frequency detection.
· Transformer isolation between input and output.
· Comfort tone on seize.
· Comfort tone release.
· Manual remote release off unit via MF key pad (Hache key).
· Auto release via Silence, N U Tone, Dial Tone, Time Delay.
· Configurable for bi-directional speech path or one way or other with internal amplifier.
· Card based Rack mount version available (20 cards in 3U high Equipment Shelf).

Mechanical

Compact steel case dry powder coated 275 mm x115 mm x 50mm.

Krone Connection in and out.
Low voltage plug top P.S.U. (24 v).

Electrical

· Input impedance 600 ohm (Active).
· Input impedance 10 kohm (Idle).
· Bridging transformer BT cro 136.
· Frequency response +/- 0.2 dB 200 Hz - 4khz.
· Return loss > 19 dB.
· Frequency detection range 200 Hz - 1kHz.
· Mains isolation >3.8Kv.