ACCES DEVICES FOR PCM/PDH or E1/T1 NETWORKS

CXR offers a large catalogue of access devices for PCM, PDH or E1/T1 networks. These products terminate on point to point circuits , or on multipoint links from multi-service multiplexers.

These products are deployed by Telcos, Service Providers and private enterprise, at the edge on local loops, at an interconnection in the network or to adapt Microwave Radio links to user interfaces.

The Interface Converters, or CSU/DSU, CV0100, CV2000, CV200-TTX and CV-E3T3-TTX terminate the different G.703 lines from multiplexers or G.703 modems or Microwave Radio systems to establish a serial or Ethernet link.

Links can originate from CXR multiplexers or modems or from any G.703 network.

The XM-M16E1/T1-4TTX inverse multiplexers carry Ethernet over multiple bonded E1/T1 links ( 4 to 16 E1/T1). This equipment is connected to E1/T1 circuits typically found on SDH/SONET networks or microwave radio links. ISPs have adopted this technology when providing Internet Access in remote serving areas.

The E1/T1 multiplexers MX2000, MX200-TTX and MX2411 connect to a single PDH E1/T1 network and provide two or more user interfaces. They are deployed on point to point links to provide multi-service connections between two sites. They are also used as an edge device when concentrating voice/data/Ethernet services towards a large multi-service DACS in the network.

The multi E1/T1 multiplexer/cross-connect PDH or DACS, QX3440 , IX4200-9 and IX4300 are used both at the edge of the network when several end-user interfaces must be concentrated and at the core of the PDH E1/T1 network. multiplexer section

These larger multiplexers are described in the PDH & SDH/SONET multiplexer section