Solidyne - Digital Power

Technical Specifications HL 202

LINES:
2, 4 & 6 phone or cellular lines.
Full conference with 8 dB cross gain.

TECNOLOGY:
Active Hybrid with send and return gain, auto-adjusted by audio limiter and AGC. Balanced telephone lines floating with ground isolation by Nickel-Ferrite transformers.

AGC Output level:
Constant level to console, independent from line level due to the action of the internal AGC. A 15 dB phone level change causes less than 3 dB change at the Output

Output level control on the front panel. Nominal level +4 dBu, variable between -60 / +8 dBu

INPUT LEVEL:
Audio limiter to operate with signals from
-5 to + 8 dBu

PRIORITY SYSTEM:
The speaker have priority to interrupt, causing an attenuation of 12 dB on the caller.

AUDIO SEND FILTERS:
Band-Pass filters in send channel, limits response to 400 – 2.200 Hz to eliminat on-air sound coloration.

Send Level at phone line:
0 dBm (2 Vpp)

HYBRID OUTPUT RESPONSE:
300 - 3.400 hz +/- 1 dB IMPEDANCE: 600 Ohms

HYBRID GAIN:
Self-adjusted between 12 and 30 dB, according to the line level.

DISTORTION, THD:
Below 0,2 % at the balanced output @ 1 Khz, + 4 dBm level

NOISE LEVEL:
S/N better than 70 dBA, measured with artificial phone line of 2 km

HYBRID REJECT:
More than 40 dB
at 1 Khz. Measured with 2 km artificial phone line

REJECT ADJUSTMENT:
15 Multi-turns preset on each line. It adjusts only when installing

LINES ISOLATION
Independents inputs, balanced and floating with transformer Isolation 250 V/CA

OVERLOAD SAFETY
2 KVolt protection against lightning discharge using SIOV technology

POWER:
200-240 V/100- 130 V
50/60 Hz, 5 VA

DIMENSIONS:

Rack mounting 19"
1 U (44mm)

Two HL 202 blocks diagram

(Engineers Information)

Click here to enlarge block diagram

The Hybrid HL 202 owes its excellent audio quality to its advanced design. We give your engineers this Block Diagram, in order they can confirm the excellence of our units.

You will find that our Phone Hybrids incorporates technologies almost never seen before in units of other brands. For example:

1) An audio processing stage in the return channel to maintain constant the level in the conferences.

2) Audio processing in the send to telephone line channel. This process makes unnecessary the operator continuous correction of the send level. On the other hand, it increases the intelligibility of the voice, allowing listening in noisy environment. Band limiter filters eliminates the return of out of band components, to maintain the quality of the local voice when the hybrid is on-air.

3) HL 202 has 2, 4 or up tp 6 internal mix-minus buses. This way it is possible to obtain perfect conferences because it has cross gain of 8 dB, so that all the remote callers can be listened to each other.

4) Inputs use Nickel-Ferrite transformers that brings high inductance and excellent isolation to avoid humming or line noises

5) Terrestrial lines or cellular phone It allows managing simultaneous telephone communications by phone lines (2 wires mode) or cellular phone (4 wires mode) . The commutation is automatic, when RJ11 connector is plugged the cellular is detected.

6) Lightning protection. Using metal oxide varistor (SIOV) the HL 202 hybrid is protected against high voltage. A 2 KV test capacitor discharge is done at each unit to be approved at factory.

Technical Specifications HL 202

LINES: 2, 4 & 6 phone or cellular lines. Full conference with 8 dB cross gain. TECNOLOGY: Active Hybrid with send and return gain, auto-adjusted by audio limiter and AGC. Balanced telephone lines floating with ground isolation by Nickel-Ferrite transformers.

AGC Output level: Constant level to console, independent from line level due to the action of the internal AGC. A 15 dB phone level change causes less than 3 dB change at the Output

Output level control on the front panel. Nominal level +4 dBu, variable between -60 / +8 dBu

INPUT LEVEL: Audio limiter to operate with signals from -5 to + 8 dBu

PRIORITY SYSTEM: The speaker have priority to interrupt, causing an attenuation of 12 dB on the caller.

NOISE LEVEL: S/N better than 70 dBA, measured with artificial phone line of 2 km

HYBRID REJECT: More than 40 dB at 1 Khz. Measured with 2 km artificial phone line REJECT ADJUSTMENT: 15 Multi-turns preset on each line. It adjusts only when installing LINES ISOLATION Independents inputs, balanced and floating with transformer Isolation 250 V/CA

OVERLOAD SAFETY 2 KVolt protection against lightning discharge using SIOV technology POWER: 200-240 V/100- 130 V 50/60 Hz, 5 VA DIMENSIONS: Rack mounting 19" 1 U (44mm)