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.
• Interconnecting DSLAMs to Central Routers over PDH/SDH
• Interconnecting IP based GSM base stations
• Interconnecting WiMAX base stations
• Using telecom network of E1s / PDH / SDH microwave etc. carrying E1s to transport Ethernet data.

In all cases the equipment be always installed and used in pairs, with one terminal being installed at either end of  the network.

Application 1: Ethernet over 8 E1

Features:

• Provides 8 E1 interfaces
• Provides 4 Ethernet 10/100Mbps (Elecrical) ports for each converter
• Optionally provides 3 Ethernet 10/100Mbps (Elecrical) ports and 1 Ethernet (Optical) port for each converter
• E1 supports three working modes of transmission. Un-Framed/Transparent, Framed, CAS / PCM 30 format
• Supports VCAT (virtual concatenation) and LCAS (link capacity adjustment scheme) protocol, and complies with ITU-T G.7042 specifications
• Mapping to E1 complies with ITU-T G.7043 and G.8040 specifications
• Supports differential delay of up to 120ms on E1 links
• Complies with IEEE 802.3 specifications
• Support VLAN tagging as per 802.1Q
• Supports X.86, LAPS and HDLC transmission protocols
• Supports 100M full-duplex mode
• Configurable frame length upto 1916 bytes (MTU size)
• Supports GFP-F encapsulation complying with ITU-T G.7041
• Provide smooth adjustment of bandwidth
• Provides Loss of Frame alarms
• Provides error frame statistic
• Supports automatic removal and addition of E1 links
• Available with MAC address list filtration, learning, and updating functions
• A large external SDRAM buffering for handling data bursts
• E1 Interfaces support errors count
• Tolerant for drift of E1 signal of up to 512UI.
• Error code correction and automatic protection and recovery of E1 channel. 
• Network management function. The main function of network management system is to fulfill the inquiry for local and remote devices and configuration management including inquiry of alarm status on E1 line, Ethernet working status, and loopback control etc.
• Automatic ethernet negotiation function. Supports 10M/100M and working modes of both full-duplex and semi-duplex.
• Transparently transmits ultra-long frames stipulated in IEEE 802.1Q, and supports Ethernet switches with VLAN function.
• Supports two synchronization clock modes, Internal Clock and Network Clock (Loop-Timed Clock)

• Imbedded, dynamic Ethernet MAC address list (5000 addresses), and filter function for local data frames.

Related Products:

• E1, T1, E3, DS3 Ethernet converters - Home Page
• Ethernet over 1 E1 converters
• Ethernet over 4 E1 converters
• 4 Ethernet over E1 convertes
• E1 to T1 Data (Frame) converters
• E1 to DS3 converters
• T1 to E3 converters
• Ethernet over E3 converters
• Ethernet over DS3 converters