Description
In order to ensure the smooth and reliable development of the communication service, the coast station adopts a 2MB/S digital transmission channel (such as digital microwave equipment, optical transceiver), and uses the PCM access equipment to multiplex the service to the 2M channel, and then cooperates with the 2M channel without damage automatic switching devices to greatly improve the security and reliability of channel transmission.
The whole system keeps all important services on the 2M digital channel. When the main transmission route fails, it will automatically switch to the alternate transmission route without damage. The following scheme uses PCM equipment to access various types of service data. In order to ensure the security and reliability of E1 (2M) lines,our company also uses E1 protection switching equipment to implement master and spare backup protection for E1 (2M) lines.
When the main E1 line fails, the system will automatically switch to the spare E1 line without damage; when the main E1 line returns to normal, the system will automatically switch back to the main E1 line without damage, fully satisfying the customer's requirements for important departments.
1. Link channel: The customer needs to provide 1 channel master and 1 spare E1 (2M) channel.
2. Recommended equipment: central office: ZMUX-3300
remote: ZMUX-122, ZMUX-30