This device supports SNMP network management. Suitable for various fields such as local area network interconnection, central office interconnection, video on demand, remote monitoring, E1 interface card insertion for switches, etc.

Features

Integrated circuits based on independent intellectual property rights.
Realize transparent transmission of Ethernet data in 1-16 E1 circuits.
The Ethernet interface supports 100Base FX and VLAN protocol.
Among the 8 E1 lines, the maximum delay difference between any two lines can reach 220ms; when the delay difference exceeds 220ms, a delay difference over limit alarm will be generated, and the service will be interrupted.
Built in dynamic Ethernet MAC address list (4096), with local data frame filtering function.
The E1 interface complies with ITU-T G.703, G.704, and G.823 and does not support the use of signaling time slots.
Timer mode, with options for local timing and tracking E1 line timing. The E1 line timing source can automatically switch based on signal quality.
Compliant with ITU-T standard protocol, GFP-F encapsulation recommendation G.7041, VCAT virtual cascade and LCAS link capacity adjustment method recommendation G.7042, Ethernet to nxE1 mapping recommendation G.7043, Ethernet to single E1 mapping recommendation G.8040.
When the transmission bandwidth increases, it will not damage Ethernet data; When the transmission bandwidth is artificially reduced, it can also be achieved through network management without damaging Ethernet data.
The E1 branches at both ends can be connected without corresponding numbering.
Topology can be obtained through network management; When a unidirectional fault occurs in one E1 branch, the other direction can still work.
E1 signal loop back automatic detection and cut-off function: When a loop back is detected in a certain E1 signal, the system will cut off this E1 signal; After the loop is released, this E1 will automatically resume use.
Complete alarm indication, with the option to display local/remote alarms.
Support remote/local E1 line side loopback function, facilitating testing of E1 lines.
Support local system to reset remote systems.

Technical Specifications