Framed E1-(FE+4RS232) Interface Converter

    This protocol converter (interface converter) uses large-scale FPGA design, providing a framing E1 interface and an Ethernet interface, and four serial interfaces, it is possible to achieve 10 / 100Base-T Ethernet data over E1 channels transmission, is a high-performance, self-learning Ethernet bridge. The device serves as an extension of Ethernet devices, uses of existing networks (PDH / SDH / microwave, etc.) provided by the E1 channels to interconnect both ends of the lower-cost Ethernet and serial interfaces. Built-loop test equipment capabilities to facilitate the opening and routine maintenance works.

● Based on self-copyright IC

● Can realize monitor and control of remote equipment, OAM management data did not  take up user’s timeslot and save E1 bandwidth

● E1 supports any timeslot set, the rate is 64K-2048K

● The local device can force the remote device rate to follow it

● Have an indicator  when the remote device is power-off or the E1 line is broken or loses signal;

● Have the function of E1 interface loopback check, to avoid the converter crashing because of interface loop return;

● The Ethernet interface supports jumbo frames (2036 Bytes);

● Inter-set dynamic Ethernet MAC address (4,096) with local data frame filtering function

● Ethernet interface supports 10M/100M, half/full duplex auto- Negotiation, support VLAN

● Ethernet interface supports AUTO-MDIX (crossed line and straightly connected line self-adaptable );

● Have the Ethernet monitor self-reset function, the equipment will not dead

● Provide 2 clock types: E1 master clock and E1 line clock;

● Provide 2 impedances: 75 Ohm unbalance and 120 Ohm balance; 

● Support SNMP Network Management 

● Serial Data Interface can be RS232/RS422/RS485/TTL optional

● Serial channel can transmit adaptable serial data asynchronously at 300 Kbps-19200Kbps baud rate 

● Serial data multiplexing in E1 support ITU-T R.111 jumping coding mode

● The local RS232 serial data can command the remote RS232 serial data loop back to the local. This loop-  back in the outer ring of the RS232 data interface, you can test the RS232 interface chip without damage

● Serial port interface lightning-protection reached IEC61000-4-5 (8/20μS) DM(Differential Mode): 6KV, Impedance (2 Ohm),CM(Common Mode): 6KV, Impedance (2 Ohm) standard

● E1 Interface

Interface Standard: comply with protocol G.703;
Interface Rate: n*64Kbps±50ppm;
Interface Code: HDB3;

E1 Impedance: 75Ω (unbalance), 120Ω (balance);

Jitter tolerance: In accord with protocol G.742 and G.823

Allowed Attenuation:   0~6dBm

● Ethernet interface(10/100M)

Interface rate: 10/100 Mbps, half/full duplex auto-negotiation

Interface Standard:     Compatible with IEEE 802.3, IEEE 802.1Q (VLAN)

MAC Address Capability:  4096

Connector:      RJ45, support Auto-MDIX

● Serial Interface

Standard

  EIA/TIA-232 RS-232 (ITU-T V.28)

  EIA/TIA-422 RS-422 (ITU-T V.11)

  EIA/TIA-485 RS-485 (ISO/IEC8284)

Serial Interface

  RS-422: TXD+, TXD-, RXD+, RXD-, Signal Ground

  RS-485 4 wires: TXD+, TXD-, RXD+, RXD-, Signal Ground

  RS-485 2 wires: Data+(Correspond TX+), Data-（Correspond TX-）, Signal Ground

  RS-232: RXD, TXD, Signal Ground

● Working environment

Working temperature:   -10°C ~ 50°C

Working Humidity:    5%~95 % (no condensation)

Storage temperature: -40°C ~ 80°C

Storage Humidity: 5%~95 % (no condensation)