Overview
This
interface converter is based on FPGA, using reverse direction multiplexing
technology to bundle for multiple E1 circuits to transmit the Ethernet data of
4 Channel 100BASE-TX. It can realize 1~4 E1 channel to convert between Ethernet
optical interface. This device can transmit the transceiver signal point to
point to Ethernet optical interface to make E1 channels interconnected with
Ethernet optical interface. Unlike general remote network bridge, this device
can support 1-4 Channel E1 channel configuration, can automatically detect the
number of E1 and select the E1 available. It allows E1 lines transmission time
delay difference.
Features
►Based on self-copyright IC
►To achieve Ethernet
data transparent transmission in 1-4E1 circuits
►Can realize the
local and the remote device reset
►Ethernet Interface
is 100BASE-FX, support VLAN protocol
►Inter-set dynamic
Ethernet MAC address (4,096) with local data frame filtering function
►Single Channel lines
rate is 1984Kbit/s, 4 Channel Bandwidth is up to 7936Kbit/s
►Support all set of
Ethernet Work Mode
►CRC automatic alarm
threshold can be set to isolate the poor quality transmission lines and
cut off a single-direction. When 2M
branch circuit one direction error rate exceeds threshold, cutting off
this direction the other direction is not affected; that is to say, both
of the Ethernet direction transmission can be asymmetric
►Allow 4 Channel E1
transmission time delay difference 100ms. When the margin exceed the
allowed range, the system can automatically stop on the E1 that time delay
is too large to send data
►E1 interface
conform to ITU-T G.703, G.704 and G.823, not support the use of signal
timeslot
►E1 interface module
with inter-set clock recovery circuit and HDB3 code circuit
►Support E1 channel
hot-plug in the device, and automatically detects the effective E1 channel
and will not interrupt data transmission
►Can support
1-4 Channel E1 channel configuration, can automatically detect the number
of E1 and select the E1 available;