E1 to Ethernet Protocol Converter, Interface Converter

4E1 to (10/100BaseTX + 100BaseFX) Converter

FUNCTION：
This 4E1 to optic Ethernet converter converts signals between optical, ethernet and 4 E1 channels.

PRODUCT CHARACTER:
1). Have built-in watchdog to avoid death.
2). When Ethernet data transmitted, frames are reordered in the E1channel so as to assure frames' order effectively and improve the transmission rate.
3). It allows that the max. Transmission time difference of frames' order between each Two E1 channel can be 16 ms, which can assure it be used stably and reliably in each complicated network.
4). Check the available channel from channel 1 to channel 4 automatically and distribute bandwidth automatically.
5). Support limitation setting of CRC error code. Whenever error code rate is beyond the limitation, the system can automatically isolate E1 channel.
6). Isolation function is for uni-direction isolation. It will isolate the channel whose error code rate is beyond the limitation, which won’t influence transmission of the other direction. Then after, asymmetry transmission is carried out over E1 channel.
7). Has alarming indicator lights which can offer prompt and comprehensive information to find out error easily.
8). When it works normally, inserting or pulling out any E1 channel won’t be influenced.
9). When one receiving direction of any E1 channel receives alarms of LOS, AIS or LOF, its sending direction will not be influenced. So asymmetry transmission is materialized over E1 channel.
10).when all receiving directions of E1 channel are disconnecting, the local alarming and network management information con be sent by the sending direction to the remote endpoint and the one-direction transmission of E1 channel is carried out at the same time.
11). Have LFP function. When receiving the alarm for the E1 interface or optical fiber interface, it will use the backup line automatically.
12). The save mode can be set up as direct and store-and-forward mode.

TECHNICAL SPECIFICATION:

E1 interface:
interface standard:according with G.703
Interface Rate:2.048Mbps+-50ppm
Jitter tolerance:according with G.742 and G.823.
transmission capability: 4*E1
clock mode: inter-clock, line-clock
connector: BNC（75Ω）、RJ45（120Ω）
E1 Impedance: 75Ω(unbalance), 120Ω(balance).

10/100 Base-Tx interface:
Interface Rate: 10/100Mbps
Duplex: half and full duplex self-adapt.
Interface character: match IEEE802.3, IEEE802.1Q(VLAN).
Connector: RJ45, support auto-mdix
MAC address capability: 4096

100 Base-FX interface:
155M fiber optic data rate,
SC/FC optional
SM or MM and single or dual-core fiber optional
Transmission range: 120 Km(SM),2Km(MM) Standard 40 Km(SM)

Working environment:
power supply: AC220V；DC –48V
power consumption: ≤5W
working temperature: 0°C ~ 50°C
storage temperature: -40°C ~ +70°C
humidity: 95 %

Typical Application: