• Reliable PowerPC built-in application software, with low power consumption, it’s an embedded system based on RISC structure;
• Hot swappable 3.5in hard disk, with high capacity;
• Hi-IMPEDANCE monitoring;
• Multiple modes to stop/start recording;
• Simultaneous recording for up to 24 analog channels;
• Caller ID reception;
• Support DTMF;
• Programmable signal analysis tool to monitor audio signals;
• Audio/silence monitoring;
• Support AGC;
• Calling process monitoring;
• Automatic Voltage Sensor;
• Generate Beep tone;
• Web-based administration;
• Audio Search and perimeter configuration;
• User Identity management;
• Intelligent search and information statistics;
• Remote reset and upgrading.

Environment

• Operating temperature: 0℃—55℃
• Storage temperature: -20℃—85℃
• Humidity: 8%— 90% non-condensing
• Storage humidity: 8%— 90% non-condensing

Input/output Interface

• Telephone line jack: 8/16/24 2-pin RJ11 jacks

Audio Specifications

• Codec: CCITT A/μ-Law  64kbps
• IMA ADPCM    32kbps
• Distortion: ≤2%
• Frequency response: 300-3400Hz(±3dB)
• Signal-to-noise ratio: ≥38dB

Maximum System Capacity

• Up to 24 channels

Power Requirements

• +19V DC：1A
• Maximum power consumption: ≤19W

Impedance

• Input impedance: ≥1MΩ/500V DC; 
• ≥8kΩ/1000V AC
• Insulation resistance of telephone line from PC: ≥2MΩ/500V DC
• Telephone line impedance: Compliant with the national standard impedance for three-component network

Audio Encoding & Decoding

• A-Law        64kbps
• μ-Law        64kbps
• ADPCM      32kbps
• Sampling Rate 8kHz

Safety

• Lightning resistance: Level 4

Dimensions: 440×44×200 mm

Weight: 2.6 kg (Excluding hard disk and accessories) 

Datasheet