FE1/10&100Base-T

FE1&10/100BASE-T Interface Converter (also as FE1&10/100BASE-T Ethernet Bridge) is an Ethernet bridge of high performance, which accomplishes the convertering between the 100M Ethernet port and the E1 port. As an extended device of the Ethernet, the FE1&10/100BASE-T bridge realizes interconnection of two Ethernet by using the E1 channel provided by existing networks with low cost. 10/100Base-T(RJ45) interfaces are provided at the end of Ethernet LAN to accomplish various functions including MAC address self-learning, address filtering, address table maintenance and flow control.E1 interfaces conforming to ITU-T G.703 and G.704 proposals are provided at the end of WAN, supporting RJ45 and BNC connection modes. The E1 ports support both framing and unframing architecture. The user can select an operating mode for the E1 interface according to the connected E1 environment. This provides flexibility of network application. In the framing mode, the E1 interface provides a rate of N*64Kbps（N=1~31）. In the unframing mode, the E1 channel provides a rate of 2.048Mbps and accomplishes transparent transmission. If the FE1&10/100BASE-T bridge is used in the framing mode, the transmission clock can be either provided internally, i.e. using the main clocking timing mode (INT), or extracted from the E1 channel, i.e. using slave clock timing mode. The FE1&10/100BASE-T bridge provides plenty of self-test functions, supporting local loop and remote loop. It also provides pseudo random code test function to test error codes in the circuit.It is proposed to use the products of this series in pairs.

1. In accordance with the provisions of IEEE 802.3、802.3u Ethernet, ITU-T G.703, G.704 and G.823 protocols.
2. E1 interface framing/unframing optional; balanced 120ohm unbalanced 75ohm optional.
3. The E1 interface uses PCM31 mode, supporting CRC check.
4. E1 interface main/ slave clock optional in the framing mode .
5. In the E1 framing mode, the number of time slots is optional from 1 to 31.
6. Supporting 2.048Mbps transparent transmission in the E1 unframing mode .
7. The 10/100BASE-T Ethernet interface supports 10/100M half/ full duplex modes
8. MAC address self-learning and address filtering functions, reducing the transmission load of the E1 circuit
9. Built-in 64Mbits SDRAM Ethernet data buffer memory, improving the capability of Ethernet side anti-outburst, assuring high throughput of data transmission
10. E1 circuit remote loop and local loop tests 11. Pseudo random sequence test, facilitating the test of E1 circuit .
12. Perfect circuit test and alarm indication
13. Two architectures: stand alone and 19in rack mount architecture (16 interface converter modules can be inserted in the rack mount architecture)
14. Optional AC 220V or DC -48V input for bridge of both architectures
15. Hot rearup of double power supplies is provided for the bridge of rack mount architecture, assuring high relia