The ClearCom Encore Intercom System PS-702 2 channel intercom power supply is a powerful, yet user-friendly unit that can serve as the heart of a Clear-Com system. The Clear-Com PS-702 is a single-rack-space, one- or two-channel intercom power supply which can provide 1.2 amps (2 amps peak during call signals and other temporary events) per channel to operate Clear-Com beltpacks and remote stations(sold separately). This power is supplied to either or both channels and will support up to 40 beltpacks or 10 speaker stations. Clear-Com's advanced fail-safe design can sense the difference between a short or an overload to optimally protect itself. Power is restored in as little as 0.5 seconds, depending upon whether there was a single or multiple short or overload. The other channel continues to operate normally.
The PS-702's advanced fail-safe circuit will bring the power back up even under full load conditions. LED indicators signal a fault on either channel. A line-level program input offers a master input level. Individual program selects, each with its own send level, are provided for each channel. Use of a switching power supply allows the PS-702 to operate with any AC line voltage from 100 to 240 volts AC at 50 or 60 Hz. The sturdy metal chassis and extra-thick front panel with integral rack ears maintains legendary Clear-Com ruggedness.
Features:
Specifications:
| Microphone Inputs | |
| Panel Mic (Electret) | Input Impedance: ≥ 2kΩ Limiter Threshold: 0dBu ± 3dB Limiter Range: ≥ 20dB |
| Headset Mic (Dynamic) | Input Impedance: ≥ 1kΩ Limiter Threshold: 0dBu ± 3dB Limiter Range: ≥ 15dB |
| Program Line Input | |
| Max Level Before Clipping | ≥ 20dBu |
| Input Impedance | ≥ 5kΩ |
| Frequency Response | 200Hz – 20kHz ± 3dB |
| Max Distortion | ≤ 0.2% |
| Noise | < -70dBu |
| Max Gain | ≥ -16dB |
| Min Gain | ≤ -20dB |
| Headset Output | |
| Load Impedance | ≥ 8Ω |
| Output Impedance | ≤ 25Ω |
| Limiter Threshold | +5dBu ± 3dB |
| Max Output Before Distortion | ≥ 17dBu |
| Speaker Output | |
| Load Impedance | ≥ 4Ω |
| Max Output Before 1% Distortion | 20dBu ± 2dBu |
| Partyline Audio | |
| Partyline Output Noise | < -74dBu |
| Output Impedance | > 10kΩ |
| Partyline Input Crosstalk | < -60dB |
| Max Level Before Clipping | ≥ 12dBu |
| Sidetone Null Capability | > 25dB |
| Stage Announce / Line Out | |
| Type | Balanced |
| Output Impedance | ≥ 200Ω |
| Load Impedance | ≥ 600Ω |
| IFB / Hot Mic Output | |
| Type | Unbalanced |
| Output Impedance | 180Ω |
| Load Impedance | ≥ 600Ω |
| Frequency Response | |
| Panel Mic → Partyline | 600Hz – 10kHz ± 3dB |
| Headset Mic → Partyline | 200Hz – 12kHz ± 3dB |
| Headset Mic → Line Out | 200Hz – 12kHz ± 3dB |
| Program Input → Partyline | 200Hz – 20kHz ± 3dB |
| Program Input → Headset Out | 200Hz – 10kHz ± 3dB |
| Program Input → Speaker Out | 300Hz – 10kHz ± 3dB |
| Partyline → Headset Out | 200Hz – 10kHz ± 3dB |
| Partyline → Speaker Out | 300Hz – 10kHz ± 3dB |
| Distortion (Max THD) | |
| Panel/Headset Mic → Partyline | ≤ 0.5% |
| Headset Mic → Line Out | ≤ 0.5% |
| Program In → Partyline/Headset Out | ≤ 0.2% |
| Program In → Speaker Out | ≤ 0.5% |
| Partyline → Headset Out | ≤ 0.2% |
| Partyline → Speaker Out | ≤ 0.5% |
| Noise Floor | |
| Panel Mic → Partyline | < -65dBu |
| Headset Mic → Partyline | < -70dBu |
| Headset Mic → Line Out | < -55dBu |
| Program Input Paths | < -60dBu to < -85dBu depending on route |
| Partyline Output Paths | < -50dBu |
| Gain (Max / Min) | |
| Panel Mic → Partyline | Max: ≥ 37dB, Min: ≤ 25dB |
| Headset Mic → Partyline | 41dB ± 2dB |
| Headset Mic → Hot Mic / Announce | 55dB ± 3dB |
| Program In → Partyline | Max: ≥ -16dB Min: ≤ -20dB |
| Program In → Headset Out | ≥ 18dB |
| Program In → Speaker Out | ≥ 24dB |
| Partyline → Headset Out | ≥ 34dB |
| Partyline → Speaker Out | ≥ 40dB |
| Mains Power Supply | |
| Input Voltage Range | 100–240V AC |
| Frequency Range | 50–60Hz |
| Input Power | ≤ 60V AC |
| Output Voltage | 30V DC ± 0.5V |
| Output Current/Channel (Cont.) | 1.2A |
| Output Current/Channel (Peak) | 2A (Max 2s/min for peaks) |
| Short Circuit Recovery (1st Short) | ≤ 0.5 sec |
| Short Circuit Recovery (20 Shorts) | ≤ 20 sec |
| Environmental | |
| Operating Temperature | 32°F – 122°F (0°C – 50°C) |
| Physical | |
| Dimensions (HxWxD) | 1.75 × 19 × 7.5 in (44 × 483 × 190 mm) |
| Weight | 6.16 lbs (2.80 kg) |