30 telephone channels over E1
Specifications
- Origin
- Beijing,China
- Price Term
- FOB
30 telephone channels over E1 is a Thyristors product. Key specs — Origin: Beijing,China; Price Term: FOB.
Product Description
Description
IDM-30 is a fixed configuration. It transmits 30 channels of phone over E1(coaxial cable or twisted pairs).
Features
Transmission medium is coaxial cable (75ohm) or twisted pairs (120ohm). Standard 19†1U housing, easy to install. Fixed configuration, not modular, cost-effective. Provide 30 telephone channels ONLY. DIP switch and LED alarm indication.
Specification
E1 InterfaceOptical Interface
Rate | 2048Kbps | Code | HDB3 |
Compliant with | ITU-T G.703 | Impedance | 75Ω/120Ω |
Framing | PCM30/31 | ||
FXO/FXS interface
Frequency range | 300Hz~3400Hz | Impedance | 200Ω+560Ω//0.1μF |
Compliant with | ITU G.711 A-Law‎ | loop current | 25mA |
Power and consumption
Power supply | DC-48V /AC 220V/Dual | Consumption | ≤100W |
Working environment
Temperature | 0ºC～40ºC | Humidity | ≤90%(non-condensing) |
Application
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