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Ethernet over T1|T1 to Ethernet Converter
ethernet over E1 network converter.

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The T1/E1 to ethernet converter is a single port T1 or E1 with Ethernet Bridging that provides high-speed LAN-to-WAN connectivity.   
      Ethernet over T1 converter is an Ethernet extension device utilizing TDM telecom infrastructure (of T1, DS3, SDH or microwave links carrying T1s ). It converts the Ethernet data into T1 frame format for transmission over the existing TDM (T1) links and then re-converts the T1 back into Ethernet data the far-end terminal, to BRIDGE two Ethernet LANs over the existing T1-based telecom network. The device can effectively utilize the existing TDM network to transport Ethernet data with low investment.
     The device support two protocol E1 and T1,can used as ethernet over T1 converter or ethernet over E1 converter.It is collocated with E1/HDB3 or T1/B8ZS as line interface, E1 can be either framed N*64Kbps (N=1-31) or unframed 2048Kbps, which are also known as channelization and unchannelization. Under the framed mode, it supports options of CAS/CCS (30 & 31 time slot), and CRC4 auto-adapt. T1 connects remote LAN through fully transparent unframed 1.544Mbps bandwidth. Transmission clock can be recovered from receiving signal G.703 lines and also can work in internal clock mode.
 Based on self-copyright IC.
 Ethernet port 10/100M half/full duplex self adaptable, supporting VLAN.
 conforms to the requirements of G.703, G.704&G.706 of ITU.
 E1 can be either framed N*64Kbps (N=1-31) or unframed 2048Kbps
 conforms to IEEE 802.3/IEEE 802.3u and has VLAN 802.1Q function.
 Support E1 line or T1 line;
 E1 can support BNC 75-ohm and RJ45 120-ohm;
 Support local and remote loops test, user can test circuitry and diagnose failure conveniently to achieve
port-to-port integrity test.
E1 Interface
 Line Rate: N*64Kbps(N=1--31); 2048Kbps
 Line Code : HDB3
 Interface Standard: ITU-T G.703
 E1 Impedance: 75Ω(unbalance) and 120Ω(balance)
 Connections : dual coax BNC and 120-ohm twisted-pair (RJ45)
 Jitter tolerance : finer than G.742 and G.823
T1 Interface
 Line Rate: N*64Kbps(N=1--31)
 Line Code : B8ZS
 Interface Standard: ANSI T1.403-1999,ANSI T1.408,AT&T TR 62411
 T1 Impedance: Balance 100 ohm, RJ45
 Format of line frame : Unframed, fully transparent
 Clock : Internal clock, slave clock(G.703 clock)
Ethernet Interface(10/100Base-T)
Rate: 10/100M, full/duplex auto-negotiation
Protocol: Support IEEE 802.3,IEEE 802.1Q
MAC Address Entiries: 4096 Entiries
Total Memory Sizes: 64MBits SDRAM
Physical interface: RJ45, support AUTO-MDIX
Power supply
working voltage range wide, good
anti-disturb and Isolation, work stable
option I – DC-48V,range DC-36V~DC-72C
option II – AC220V,range AC165V~AC240V
Power Consumption: <=3 Watts
Environment condition
Operating temperature: 0C~+50 C
Storage temperature: -20 C~+70 C
Relative temperature:95% (uncondensed)

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