Characteristics
- Based on self-copyright IC
- To achieve transparent Ethernet data transmission in 1-4E1 circuits
- You can make local and remote restoration of the device
- The Ethernet interface is 100BASE-FX, compatible with VLAN protocol
- MAC Ethernet Dynamic Direction between sets (4096) with local data frame filtering function
- The speed of single-channel lines is 1984 Kbit / s, the 4-channel bandwidth is up to 7936 Kbit / s
- Allows all Ethernet working modes
- The CRC automatic alarm threshold can be configured to isolate poor-quality transmission lines and cut off a single direction.
- When the error rate of a 2M-derived circuit address exceeds the threshold, when cutting this direction, the other direction is not affected; that is, both Ethernet transmission addresses can be asymmetric
- Allow a transmission time delay difference of 4 100 m E1 channels. When the margin exceeds the permitted range, the system can automatically stop at the E1 that the time delay is too large to send data
- The E1 interface meets ITU-T G.703, G.704 and G.823, does not support the use of signal time interval
- E1 interface module with clock recovery circuit between sets and HDB3 code circuit
- Allows hot connection of the E1 channel on the device and automatically detects the effective channel and will not interrupt data transmission
- You can support the 1-4 channel E1 configuration, you can automatically detect the E1 number and select the E1 available.
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