Typical application requirements or prerequisites in the industry
1. There is already a transmission network. Each substation occupies one E1; among them, the 220KV substation requires a large amount of business.
2. Provide N * 64K bandwidth for transmitting video data;
3. Provide data interfaces such as RS232, RS485, and 10BASE-T, as well as four wire/two-wire EM signaling;
4. Unified network management;
5. Save limited space in the computer room.
Overview and Networking Diagram of Tianwei Telecom Solution
1. The voice service between the 35KV substation and the power dispatch center is generally used in pairs using PCM in a point-to-point manner. However, due to the fact that Tianwei Telecom's intelligent PCM equipment - PCM30 series integrated service access equipment - can achieve "single ended access" with most well-known switches, that is, the remote broadcasting intelligent PCM equipment is directly connected to the 2M user relay port of the switch through the transmission channel, and PCM does not need to be installed at the central office (dispatch center), which reduces one analog-to-digital conversion and improves system stability; Reduced the number of fault points, making maintenance more convenient; At the same time, it greatly saves equipment investment (up to 40%).
2. The power dispatch between the central dispatch center and production departments such as 220KV substations is often completed by valuable dispatch machines. To reduce and save on the investment in dispatch machines at numerous remote sites, Tianwei Telecom's access equipment can provide ISDN-U interfaces to meet the requirements of scheduling between the central dispatch center and remote sites (220KV substations) through ISDN digital channels; Insert an ISDN-U interface disk into the remote access equipment (220KV substation) and directly connect it to the dispatch console (instead of the dispatch machine), greatly saving costs and equipment space.
