DESCRIPTION The FOMi-E1/T1 fiber optic modem converts an E1/T1 electrical signal into an optical signal. After the conversion, the signal is transmitted over fiber optic cable, extending the E1/T1 service range up to 100 km (62 miles). The device supports different fiber optic interfaces with VCSEL and laser diode transmitters. The modem operates over several grades of fiber optic cables (see Table 1). Operation complies with ITU G.703, G.921 and G.956 requirements. The balanced and unbalanced electrical interfaces of the modem are transparent to E1 and T1 framing. The unit is available as master or slave standalone units. The master version includes front panel LCD and control buttons. The slave unit has a blank front panel with a special 20-pin connector for a portable control unit (PCU) connection. FOMi-E1/T1 can be ordered as a single or dual modem card for installation into RADs LRS-24 modem rack (ETSI or ANSI configuration) with SNMP management. The master modem provides full-dup FEATURES Fiber optic modem, extending the range of E1/T1 services over fiber optic cables up to 100 km (62 miles) Transparent to E1/T1 framing Operates opposite RAD's DXC cross-connect system, Megaplex access multiplexers, and FCD access units Provides full management of the local and remote units via the front panel Operates over single mode or multimode fibers Conforms to all relevant ITU series standards, including V.54 diagnostics loopbacks and V.52 BER testing Provides real-time alarm indications for local and remote units, relays minor and major alarm conditions via dry contact alarm port Available as a single modem or dual modem card for RADs LRS-24 modem rack with SNMP management E1/T1 Fiber Optic Modem with Remote Management FOMi-E1/T1 DESCRIPTION The FOMi-E1/T1 fiber optic modem converts an E1/T1 electrical signal into an optical signal. After the conversion, the signal is transmitted over fiber optic cable, extending the E1/T1 service range up to 100 km (62 miles). The devic SPECIFICATIONS E1/T1 ELECTRICAL INTERFACE