The ST-IC1 is the ideal choice where an intercom system is to be installed, or where an amplifier is needed to bring a mic level up to a 1 W speaker level with optional muting capability.
The ST-IC1 has one input, one output and two muting control terminals.
The input accepts a dynamic mic, a condenser mic (a phantom supply input terminal is provided to power condenser mics), an 8 ? speaker or a 45 ? speaker. The gain range of the module is sufficient to accommodate this wide variety of source levels.
The output is ground-referenced, and drives more than 1 watt RMS into an 8 ? load. The output circuit can be connected to any load impedance of 4 ? or greater.
- Intercom Electronics
- Intercom with Push-to-Talk
- Mic or Speaker Input
- 8 ? or 45 ? Speakers
- Bidirectional Communication Option
|Input||>600 ? balanced|
|Frequency Response||300 Hz to 4 kHz (± 2 dB, filtered for voice band intelligibility)|
|Gain||Off to 70 dB (adjustable)|
|Input level for 1 W RMS output||-60 dBu (8 ? source); -55 dBu (600 ? source)|
|THD+N||< 1% (1 kHz, referred to 1 W @ 50 dB gain)|
|Residual Noise (below 1 W)||< 75 dB (60 dB gain setting, unmuted)|
|Maximum Output Power||1.5 W RMS (before clipping)|
|Mute Inputs (2)||Trigger on high to low transition, 2 mA, 15 V pullup; Trigger on low to high transition, 0.1 mA|
|Mute Attenuation||> 115 dB (1 kHz)|
|Mute Switching Type||Solid-State, no relay contacts used|
|Mute Release Delay||15 ms|
|Ambient Operating Environment||0° C to 40° C|
|Power Requirement||GROUND-REFERENCED, 24 Vdc @ 175 mA|
|Dimensions||Height: 0.7 in. (7.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm)|
|Package Type||Cardboard Box|
|Package Dimensions||2 x 2 x 4 in.|
|Shipping Weight||0.185 lbs.|
|WEEE weight||0.13 lbs.|