Unframed E1-FE Interface Converter

This interface converter provides one unframed 2048kE1 interface and one Ethernet interface to achieve 10/100Base-T Ethernet data transmission on the E1 channel. It is a high-performance, self-learning Ethernet bridge. This device is the extension device of Ethernet, using the network (PDH/SDH/Microwave) that provides the E1 channel to achieve local and remote Ethernet interconnecting with serial interfaces at a lower cost. The device has an inter-set loop test function to facilitate the project launching and daily maintenance.

● Based on self-copyright IC;

● Support unframed mode (2048K) set and can manage the remote device condition, OAM management data did not take up the user’s timeslot;

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

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

● Can set the E1 line not to send the LINK signal to the Ethernet interface while the E1 line is broken;

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

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

● Ethernet interface supports 10/100M, half/full duplex auto- Negotiation, and AUTO-MDIX (crossed line and straightly connected line self-adaptable );

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

● Can achieve the remote device setting any 5 modes of Ethernet and can close the AUTO-MDIX function;

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

● The local device can force the remote device rate to follow it (when the device is unframed mode, that is invalid);

● Have three Loop Back Mode: E1 interface Loop Back (ANA), Ethernet interface Loop Back(DIG), Command the remote, Ethernet interface Loop Back (REM);

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

● Support SNMP Network Management;

● Can realize monitor of remote equipment temperature and voltage from local equipment;

● Can form the structure: Ethernet E1 Bridge(A)－－-E1 Optical Fiber Modem(B)－－-Ethernet Optical Fiber Modem (C);

● Can form the structure: Ethernet E1 Bridge(A)－－-Optical Ethernet Modem(B)－－-Ethernet Optical Fiber Transceiver (C), can manage (B) and (C) at (A).

● E1 Interface

Interface Standard: comply with protocol G.703;
Interface Rate: 2048k;
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

● 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)