|Analogue - HY-03 Products|
|Digital - DHY-03 Products|
|Digital - DHY-04 Products|
|GSM - DHY-04 Products|
Telephone hybrids, or telephone balance units (TBUs) provide the interface between professional audio equipment and the public telephone network. They provide protection for your equipment and the public telephone lines, allowing for varying line signals and line conditions. Automatically cancelling out the unwanted signal they also facilitate two-way communication down a single telephone line.
Each telephone hybrid has a telephone line connection, a handset connection and separate terminals for audio input and output from a broadcast mixer, or other professional audio source.
A large proportion of Sonifex hybrids are used in radio and television broadcasting applications for allowing external callers to be connected to the studio mixing console. Most of the other units are supplied to communication operations for allowing extremely effective conversion between 4-wire audio circuits and standard telephone lines.
A ringing detector can be used when you need to answer a call automatically, for instance, if a journalist files a report to a PC recorder over a telephone line, the call can be picked up after a set number of rings by the ringing detector. Both the HY-03 & DHY-03 have a built in ringing detector that is enabled by one of the configuration settings switches on the rear panel.
Analogue, Digital or GSM?
Sonifex offer a few different hybrid units:
- The HY-03 analogue telephone hybrid.
- The DHY-03 DSP based telephone hybrid.
- The DHY-04 DSP based telephone hybrid.
- The DHY-04G DSP based GSM hybrid.
The analogue HY-03 hybrid is suitable for most general telephony applications and is often used in radio and TV stations, trading floors and conferencing centres. The HY-03 can be used for any application where a clean telephone signal is required and the line is not subject to signal delay.
- Echo cancellation is possible and distortion of other mixed signals is greatly improved.
- Digital hybrids are more tolerant to fluctuating line conditions and are especially suitable for dealing with calls that have a slight signal delay, for example, satellite and conference calls. The DHY-03 can recall signals from its memory buffer and allow for these delays without impairing performance.
The DHY-04 is a redesign of the DHY-03 hybrid and adds Ethernet connectivity with a built-in web browser for configuration, control and dialling, combined AES/EBU digital and analogue audio inputs and front panel speed-dial buttons.
Note: The HY-03
products are operating on analogue telephone lines, not ISDN or IP digital lines. The “analogue” and “digital” refer to the processing used in the units.
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|HY-03||Automatic Analogue TBU, Free Standing
|HY-03S||Automatic Analogue TBU, Rack Mounted||more >>|
|HY-03T||Twin Automatic Analogue TBU, Rack Mounted||more >>|
|HY-03DTD||Dial Tone Detect Add-on Board||more >>|
|HY-03CON||Front Panel Conversion Kit, HY-03S to HY-03||more >>|
|HY-03SCON||Front Panel Conversion Kit, HY-03 to HY-03S||more >>|
|HY-03TCON||Front Panel Conversion Kit, HY-03 or
HY-03S to HY-03T
|Back to Telephone Hybrids Contents >|
|DHY-03||Automatic Digital TBU, Free Standing||more >>|
|DHY-03S||Automatic Digital TBU, Rack Mounted||more >>|
|DHY-03T||Twin Automatic Digital TBU, Rack Mounted||more >>|
|DHY-03EC||Automatic Digital TBU, Eurocard||more >>|
|DHY-03CON||Front Panel Conversion Kit, DHY-03S To DHY-03||more >>|
|DHY-03SCON||Front Panel Conversion Kit, DHY-03 To DHY-03S||more >>|
|DHY-03TCON||Front Panel Conversion Kit, DHY-03
Or DHY-03S To DHY-03T
|DHY-03CONF||Conference Cable To Connect 2 x DHY-03 Units||more >>|
|DHY-03RLY||Latching Handset Relay Option
For DHY-03, S and T
|DHY-04||Single Automatic Digital TBU, AES/EBU & Analogue I/O With Ethernet.||more >>|
|DHY-04S||Single Automatic Digital TBU, AES/EBU & Analogue I/O With Ethernet.||more >>|
|DHY-04T||Twin Automatic Digital TBU, AES/EBU & Analogue I/O With Ethernet.||more >>|
|DHY-04CON||Front Panel Conversion Kit, DHY-04S to DHY-04||more >>|
|DHY-04SCON||Front Panel Conversion Kit, DHY-04 to DHY-04S||more >>|
|DHY-04TCON||DHY-04SCON Front Panel Conversion Kit, DHY-04 to DHY-04T||more >>|
|DHY-04G||Single Automatic GSM Hybrid, AES/EBU & Analogue I/O With Ethernet.||more >>|
|DHY-04GS||Single Automatic GSM Hybrid, AES/EBU & Analogue I/O With Ethernet.||more >>|
|DHY-04GT||Twin Automatic GSM Hybrid, AES/EBU & Analogue I/O With Ethernet.||more >>|
|DHY-04GCON||Front Panel Conversion Kit, DHY-04S to DHY-04.||more >>|
|DHY-04GSCON||Front Panel Conversion Kit, DHY-04G to DHY-04GS.||more >>|
|DHY-04GTCON||Front Panel Conversion Kit, DHY-04 to DHY-04S.||more >>|
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