OEX-120MST
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Plesiochronous Modular Digital Hierarchy system
Datasheet oex-120mst
1. DESCRIPTION
The 4E1 Multi-service Transmission System is designed with large-scale programmable logical elements as its core, applying the unique patent of dither-reducing technology, digital phase-locking and clock-extracting technology, and the anti-interference 2M interface technology. It is ideal for places where high reliability and comprehensive auxiliary functions are required. For example, the private communication networks of Mobile, Telecom, Electric Power, Public Security, Military, Highway, and Aviation. All the interfaces to outside of the 4E1 Multi-service Transmission System are of modular structures. The system offers several types of interfaces, such as E1, V.35, Ethernet and voice. For the hardware, large-scale FPGA, which incorporates encoding, decoding, information insertion and alarming, is applied. This simplifies the circuits and improves the reliability of the whole device.
2. CHARACTERISTICS
- Transmission capacity of four E1s (2.048Mbps)
- Ethernet port of 10M line speed
- Built-in 4-port switch
- One asynchronous RS232 interface
- One public affairs telephone interface
- LED indicators and acoustic warning system, indicating warnings of both local and remote devices
- Unique patent of dither-reducing technology applied, with dither index far better than international standards
- TDigital clock restore circuits and digital smoothing phase-locking circuit applied at E1 port
- Voltage options: -48V/+24V/110V/230V
- Highly integrated hardware circuit, with the whole power consumption less than 30W
- Simple circuit design, and running steadily
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