Product Description »
Abstract:
GDM8-02WJ-centralized PDH multiplexer is in line with Chinese telecommunications standards. It's a photoelectric integration transmission equipment with centralized network management function, with the installation of high-density, can achieve the dual-fiber protection. It has features of double-protection function, and the advantages of reliable capability, easy to service. The optical transmission equipment has signal transmission channels of 4E1, 8E, 1 6E1 and Ethernet, which are widely used in telecommunications access, local fiber access networks, Mobile transmitting of digital signals and computer data connections.
System features:
1. Using 19-inch 6U chassis, can be inserted up to 16 CDs at most, can save more space of the engine room;
2. Each compartment has Monitoring site which can transmit the working conditions of local and remote equipment to Central Office Management System.
3. Through connectivity, Network management systems can control more than 1, 000 sets PDH equipment.
4. Network Management uses Windows system, easy to operate and maintain.
5. Channel capacity can be 4, 8 or 16 channels with 2Mb/S;
6. Front panel fiber. Back panel wire, convenient to operate;
7. Optical cards can choose the function of automatic line protection of dual fiber to avoid redundancy and ensure smooth operations
8. Distributed systems to provide power, in order to minimize the interference;
9. Use large-scale integrated circuits and the technology of digital circuit, to make sure capability stable and high reliability.
Technical specification:
Optical Interface Features:
1. Line code: NRZ, 25.344Mb/s;
2. Luminous power: - 3dBm -- -15dBm;
3. Receiver sensitivity: Better than -35dBm;
4. Transmission distance: ¡Ü 30km (long distance can be customized);
5. Optical connector: FC/PC;
6. Applicable fiber: Single mode;
7. Optional parameters:
-Transmission distance: 50km/ 80km/ 100km,
-Line protection: Double-interface
-Transmission: Single-core optical fiber transmission.
Electrical (2Mb/s interface)
1. Bit rate: 2.048Mbps± 50ppm
2. Line code: HDB3;
3. Nominal impedance: 75¦¸ unbalanced / 120¦¸ balanced
4. Standard tolerance: Accord with ITU-TG. 703 Recommendation;
5. Jitter tolerance: Accord with ITU-TG. 823 Recommendation;
6. Signal interface: Straight coaxial head.
Power supply
1. Power input: 48V - or 24V DC (AC should be added converter);
2. Power consumption: ¡Ü 80W
Environment:
1. Environmental temperature: 0-+40 ºC;
2. Relative humidity: ¡Ü 85% (25ºC);
3. Atmospheric pressure: 86-106Kpa.
Dimensions
The machine has a standard structure of 19-inch and the net size of the shape is 485mm*275mm*270mm.
