Item # ST-IC1
INTERCOM AMPLIFIER
Item # ST-IC1
INTERCOM AMPLIFIER
- UM: EA
- Brand: RDL
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 O speaker or a 45 O 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 O load. The output circuit can be connected to any load impedance of 4 O or greater.
Features:
- Intercom Electronics
- Intercom with Push-to-Talk
- Mic or Speaker Input
- 8 Ω or 45 Ω Speakers
- Bidirectional Communication Option
| TYPICAL PERFORMANCE | |
|---|---|
| Input | > 600 Ω balanced |
| Frequency Response | 300 Hz to 4 kHz (± 2 dB, filtered for voice-band intelligibility) |
| Gain Range | OFF to 70 dB (adjustable) |
| Input level required to produce 1 W RMS | -60 dBu (8 Ω source) -55 dBu (600 Ω source) |
| THD+N | < 1% @ 1 kHz, referred to 1 W @ 50 dB gain |
| Residual Noise (unmuted output below 1 W) | : < 75 dB @ 60 dB gain setting |
| Operating Output Power | : 1 W RMS |
| Maximum Output Power (before clipping) | 1.5 W RMS |
| 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 |
| Muting 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 |
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