Overview:

E1-ETH Protocol Converter is Optostar\'s new style E1-10/100BaseT protocol converter. The device provides the transition between ITU-T G.703 (E1) standard E1interface and 10/100Base-T interface. It is a high capability, self-adaptable long-distance Ethernet net bridge. The Ethernet interface support jumbo frames (2036bit); have the function of E1 interface loop return examination, avoid the converter  crashed because of interface loop return; the device start the standby chain while E1 line connectionless. Learn LAN MAC address uninterruptedly, transmit the MAC address as frame. Make TCP/IP transparent, provide communication safe, seamless connection.

Main features:

◆ Based on self-copyright IC;

◆ Ethernet interface support jumbo frames (2036bit);

◆ Have the function of E1 interface loop return examination, avoid the converter  crashed because of interface loop return

◆ Examines if the malfunction because of the device crashed or E1 line is broken while lose signal or frame; 

◆ Can set the E1 line not to send the LINK signal to Ethernet interface while it is error;

◆ Ethernet interface 10M/100M, half/full duplex self adaptable, supporting VLAN;

◆ Ethernet supports AUTO-MDIX ( crossed line and straightly connected line self-adaptable ) ;

◆ Realizes set the Ethernet port in 5 random mode, realize AUTO-MDIX function on-off;

◆ Provides 2 clock types: E1 mast clock, E1 line clock;

◆ Provides 3 kinds of loop-return function: namely E1self-looping at local end (ANA), Ethernet 11. Self-looping at local end (DIG), and Ethernet being ordered to self-loop at remote end (REM);

◆ Has the function of pseudo-random code testing, convenient for opening of the circuit, and can be used as an error code instrument;

◆ Supports 75Ω/unbalanced and 120Ω/balanced impedance at the same time;

◆ Network management interface uses SNMP;

◆ . Can compose Ethernet net bridge (A)—E1 Modem (B)—Ethernet fiber Modern (C) topology structure;

◆ Can compose Ethernet net bridge (A)—Ethernet transmission device(B)—Media converter (C) topology structure.

Technical specifications:

◆E1 interface
Standard:   E1 accord with G.703 standard
Communication rate:      2.048Mbit/s±50ppm
Code:      HDB3
Impedance:      75Ω ( unbalance ) /120Ω ( balance )
Connector:      BNC ( 75Ω )
Jitter characteristic:     accord with G.742 and G.823 standard
 
◆10/100Base-T interface
Rate:      10/100M, half/full duplex adaptable.
Protocol:    support IEEE 802.3 , IEEE 802.1Q(VLAN)
MAC address:  learning 4096 MAC address
 Physics interface:   RJ45, support Auto-MDIX(across / straightly connected line self-adaptable)