4E1,8E1/10/100Base-T Protocol
Product details
LB-CON064E1/8E1 is an Ethernet bridge specially designed to transmit Ethernet data over several E1 circuits. It enables point-to-point transmission of Ethernet MAC frame data through one to four E1 circuits, with a maximum designed transmission rate of 7.68 Mbps.
LB-CON064E1/8E1 adopts demultiplexing technology, which binds several E1 circuits together to transmit 10M/100M Ethernet data, allowing certain transmission Timelag difference. It can extend the transmission distance and scope of application of Ethernet with existing E1 circuit resources of telecommunications network and is an ideal Ethernet broadband access solution.
Supporting transparent transmission of Ethernet data over 1 to 4 E1 circuits
In compliance with IEEE 802.3 protocol, supporting 10M/100M, full-duplex/half-duplex working mode
Supporting transparent transmission of jumbo frames specified in IEEE 802.1Q, and supporting Ethernet switch with VLAN function
Built-in dynamic Ethernet MAC address list (1024) in the chip, supporting local data frame filtering function
Built-in Ethernet data frame FCS check functional module, with check alarm output
Built-in Synchronous Dynamic Random Access Memory (SDRAM) controller
Optional butter area size to suit different types of services
E1 interface complies with ITU-T G.703, G.705, and G.823 recommendations, but does not support the use of signaling timeslot
Built-in clock recovery circuit and HDB3 coding/decoding circuit in E1 interface module
Supporting HDB3 code pattern
Supporting availability detection and automatic fault handling for 1 to 4 E1 circuits
Perfect line alarm indication and output
Supporting the reset of a remote system from a local system
Supporting E1 circuit loopback function
New peer end alarm function, enabling the user to remove faults visually
New lightning protection function, effectively preventing the threat of thunders and lightning on communication equipment   
Supporting remote alarm function, enabling a network administrator to judge a remote E1 line fault from the local end (applicable to the carrier-class NE-2708D)
MTBF > 50,000 hours, in compliance with carrier-class operation requirements (applicable to the carrier-class NE-2708D)
1. E1 interface
Interface rate: 2048 Kb/s 50 ppml
Interface code pattern: HDB3l
Interface impedance: 75W/non-balancedl
Jitter tolerance: In compliance with G.823l
Output jitterl < 0.05 UI

2. 100/10Base-T interface
Compatible with IEEE802.3/IEEEE802.3U Ethernet standardsl
Supporting 10M/100M, full-duplex/half-duplex working model
Dynamic address list storing 1024 Ethernet MAC addressl
Supporting automatic address update and local data frame filteringl functions
Operating Environment
    Ambient temperature: 0C- 60C
    Relative humidity: 5% - 95%
    Atmospheric pressure: 86 C 106 Kpa
    Power parameter: AC180V-240V (50Hz/60Hz)   power consumption < 5W

Dimensions: 210´140´38 (mm)

Shenzhen Federal Communications Technology Co., Ltdri   
Address: Qihang Building 502,Longtang Community,Minzhi street,Baoan District,Shenzheng
Contact: Miss Ma  Tel: 086 -0755-29185271  Mobile: 13590447858   E-mail: szlbtxjs@163.com
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