FOM-T3/ETH and FOM-E3/ETH fiber optic modems from RAD
FOM-T3/ETH and FOM-E3/ETH fiber optic modems convert a 10/100BaseT electrical signal into a T3 / E3 optical
signal. After the conversion, the signal is transmitted over fiber optic cable, extending the 10/100BaseT traffic range up to 110 km (68 miles).
FOM-T3/ETH and FOM-E3/ETH transparently connect 10/100BaseT links, utilizing the full T3 / E3 bandwidth without heavy overhead associated with packet or cell-based technologies.
The Ethernet interface module performs frame filtering and forwarding at the Fast Ethernet maximum theoretical rate of 150,000 packets per second. The bridge causes no LAN delays.
FOM-E3/ETH and FOM-T3/ETH support various optical interfaces:
850 nm LED/VCSEL for multimode fiber
1310 nm for single or multimode fiber
1310 nm and 1550 nm laser diode, long haul laser for extended range over single mode fiber
WDM laser for transmission over a single fiber.
Front panel LEDs indicate system faults in the electrical and fiber optic circuits. The alarm relay port transmits the following alarm conditions:
Major alarm – High bit error rate at the fiber optic interface.
Minor alarm – AIS received at the fiber optic interface.
FOM-T3/ETH and FOM-E3/ETH product
data sheet (pdf)