IP over TDM
Ethernet over 1 E1

Features and Highlights

• 1U high compact size
• The maximum transmission rate of Ethernet data over E1 links is 2.048Mbit/s
• E1 supports three working modes unframed, framed (CCS/PCM 31) and multiple framed (CAS/ PCM30)
• Allows transparent transmission of super-long frames upto 2024 bytes
• Automatic discards under size (less than 64 bytes) and oversize (more than 2024 bytes) framed
• Ethernet interface complies to IEEE 802.3
• Automatic Ethernet negotiation function. Supports 10M/100M and working modes of both full-duplex and half-duplex
• Automatic straight and cross-over cable support (Auto-MDI/X)
• Available with MAC address list filtration, learning, and updating functions
• PAUSE flow control ability in full duplex mode
• Equipment supports two working modes of internal clock and network Loop-timed clock
• With multiple loopback functions and built-in bit error testing function, it facilitates the trouble shooting
• Compatible to deluxe models (VCL-ETH-4/8/16 and VCL-ETH-8/16-ML) and can be installed with them to reduce the installation cost
• Easy to operate

Power supply options:

• 220V AC (50/60 Hz) power options available
• -48V DC power option available
• Power consumption less than 4Watts.

Applications

The equipment may be used for the following purposes:

• Bridging Ethernet LANs over existing TDM (E1) telecom network.
• Extending Ethernet networks utilizing TDM (E1) landline based telecom infrastructure.
• Using telecom network of E1s/PDH/SDH microwave etc. carrying E1s to transport Ethernet data.

Alarms and Indicator Monitoring

• Power Indicator
• Remote Alarm Indicator
• Loss of Frame Indicator
• E1 LOS Alarm Indicator
• AIS Alarm Indicator
• Code Violation Alarm Indicator
• Ethernet Link Indicator
• Ethernet Mode (FDX) Indicator
• Loopback Indicator
• Error in Test Indicator.