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As a cost effective solution for the traditional telecom services migrate to the IP packet networking technology, adopts the innovative TDM over IP technology, it transports the legacy E1 data through the existing IP network.
This is the second generation of the TDM over IP equipment with IP circuit emulation that supports transportation of two E1 and two local Ethernet ports over the IP network. The uplink port and user data ports are IEEE 802.3 compliant, 10/100BaseT auto-sensed Ethernet ports.
The state-of-the-art design provides the highest availability with the accurate timing signal and data bit stream reconstruction. Predefined system parameter profiles that according to different application requirements ultimately simplify the installation process and saving the maintenance cost.
Telecom and Enterprise users can save a lot of access and equipment costs and generates new revenue by offering different types of service over existing Ethernet networks. It is also suitable for connecting to the wireless equipment to achieve fast deployment of E1 services. One particular application is to build E1 links with low cost Wireless LAN bridges, replacing much more costly microwave radios. Operators can use this product to provide legacy TDM services over wired or wireless packet network.
Features

1. Stable E1 clock recovery, low jitter and wander
2. Low processing delay for E1 channels, high bandwidth usage efficiency
3. Resist to packet loss, with PCM frame synchronization protection
4. User definable packet size from 128 bytes up to 1408 bytes
5. Enough jitter buffer to resist packet delay variation (PDV)
6. Local Ethernet port throughput limiting, assuring E1 QoS
7. Local and remote E1 LOS and AIS and packet loss indication for trouble-shooting and maintenance
8. Adaptive E1 port impendence (75Ω and 120Ω) for coax and twisted pair cables
9. User selectable level 2 (Ethernet) or level 3 (IP) encapsulation options
10. Quick setup hardware mode switch
11. Support cascade concatenate for more than 2 E1 ports

Specifications

Items Description
Interface Uplink Comply with IEEE 802.3
E1 Port 2 E1 Ports supported
Comply with G.703
Impedance: 75Ω and 120Ω
User Data Port 2 User Data Ports Supported
Comply with IEEE 802.3
10/100Mbps auto-sensed
Full/Half Duplex auto-sensed
Console RS232, DB9F 9600-8-N-1
Power Supply AC Type 220V (165~ 265V)
DC Type –48V (–36V~-72V)
+24V(+18V~+36V)
Consumption ≤10W
Working Environment Temperature 0~ 50℃
Relative Humidity ≤90% (non-condensing)
Dimension W * H * D (mm): 440* 44 *209