IDM E1/FE Bridge
The IDM E1/FE Bridge utilizes large-scale dedicated integrated circuit design to implement inverse multiplexing of Ethernet data onto 1x E1 or fiber optic transmission. The equipment is available in both centralized and desktop models, with the centralized unit providing 1 Ethernet interface and the desktop unit providing 4 Ethernet interfaces. The transmission mode can be either E1 or fiber optic. In E1 transmission mode, the maximum Ethernet bandwidth is 2.048M; in fiber optic transmission mode, the maximum Ethernet bandwidth is 4.096M. The equipment supports network management functions. The management device can manage the local end or desktop devices through the centralized unit. Additionally, both centralized and desktop units support DIP switch configuration for E1 interface parameters, device clock, and Ethernet parameters.
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Overview
The IDM E1/FE Bridge utilizes large-scale dedicated integrated circuit design to implement inverse multiplexing of Ethernet data onto 1x E1 or fiber optic transmission. The equipment is available in both centralized and desktop models, with the centralized unit providing 1 Ethernet interface and the desktop unit providing 4 Ethernet interfaces. The transmission mode can be either E1 or fiber optic. In E1 transmission mode, the maximum Ethernet bandwidth is 2.048M; in fiber optic transmission mode, the maximum Ethernet bandwidth is 4.096M. The equipment supports network management functions. The management device can manage the local end or desktop devices through the centralized unit. Additionally, both centralized and desktop units support DIP switch configuration for E1 interface parameters, device clock, and Ethernet parameters.
System Features
Ø Utilizes large-scale dedicated integrated circuit design
Ø Provides 4 Ethernet interfaces; the central office unit provides 1 Ethernet interface
Ø Provides 1 set of unbalanced E1 interface with BNC connectors
Ø Power supply modes: AC220V/DC-48V selectable
Ø Network management can manage the central office and remote devices via the central office COM port, including Ethernet configuration and query, E1 alarm information query, etc.
Ethernet Interface Performance Features
Ø Compliant with IEEE 802.3 10/100BASE-TX standard
Ø Remote unit supports up to 4 Ethernet electrical interfaces (central office unit supports 1 Ethernet interface)
Ø Supports enabling and disabling of Ethernet ports
Ø Supports auto-negotiation, rate, and full/half-duplex configuration of Ethernet ports
Ø Central office unit can manage Ethernet of both central office and remote devices
Ø Central office and remote units support DIP switch configuration of E1 interface and Ethernet interface parameters
Ø RJ45 interface, CAT3/5 unshielded twisted pair (MDI/MDI-X auto-sensing)
Ø Ethernet frame length standard 64 to 1516 bytes, maximum supported frame length 1516 bytes
Ø Ethernet performance compliant with RFC2544
Ø Packet loss rate <0.01%; latency ≤100μs
Ø Supports PAUSE flow control function
Technical Specifications
E1 Interface Specifications
Ø Fully compliant with ITU-T G.703/G.704 recommendations
Ø Jitter characteristics: ITU-T G.823
Ø Line code: HDB3
Ø Line rate: 2048kbit/s±50ppm
Ø Impedance: 75Ω (unbalanced interface)
Ø Framed and unframed modes configurable; in framed mode, timeslots can be configured via hardware or software
Ethernet Interface
Ø Interface protocol: Compliant with IEEE-802.3u standard
Ø Interface type: RJ45
Ø Port mode: 10/100Mbps auto-negotiation mode
Environmental Requirements
Ø Operating temperature: -30℃ to 40℃ (operating)
Ø Storage temperature: -20℃ to +70℃
Ø Relative humidity: ≤95% (non-condensing)
Power Supply
Ø Power mode: AC220V/DC-48V
Ø Power consumption: <2W
Application Example: