RAD FOM-E1/T1 E1/T1 Fiber Optic Modem
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RAD FOM-E1/T1 E1/T1 Fiber Optic Modem
FEATURES The FOM-E1/T1 is a Fiber Optic Modem, providing extended range for E1 (2.048 Mbps) or T1 (1.544 Mbps) signals over Fiber Optic Cable. The FOM-E1/T1 is designed to operate over several grades and sizes of fiber optic cable. The type of fiber optic interface chosen depends on the type of cable available and the operating distances required. Three optical interfaces are available: - 850 nm LED for use over multimode fiber with typical
distances up to 5 km The FOM-E1/T1 complies with ITU standards G.703, G.921 and G.956. The electrical interface includes circuits for recovering data and clock according to ITU G.703. The FOM-E1/T1 is transparent to E1 and T1 framing and operates with G.703 framed (G.704), or unframed signals. Depending upon internal selection, the FOM-E1/T1's electrical interface complies with E1 or T1 standard. Internal selection is provided for the following interfaces: - 75 ohms unbalanced for E1 LED status indicators and a supervisory port are provided for indicating system faults. The indicators available are optical AIS and ERR, electrical LOW and AIS. The supervisory port includes two dry contact closures: 1) For minor alarms (AIS in electrical or optical
interface); Diagnostics are provided in compliance with ITU standard, and are activated from a front panel switch. The FOM-E1/T1 provides all the benefits of fiber
optics: The unit is available as a stand-alone unit, or as a rack-mount card for the ASM-MN-214 19" rack. The rack can hold up to fourteen FOM-E1/T1 cards. Special hardware (RM-9) for mounting one or two stand-alone units in a 19" rack can be ordered seperately. SPECIFICATIONS
FOM-E1T1/*/# FOM-E1T1R /*/# * Specify the Fiber Optic interface: SM85 for 850 nm multimode LED with SMA
connector # Specify power supply: 100 for 100 VAC RM-9 Special hardware for mounting two units in a 19" rack ORDERING FOM-E1T1/FC13/115
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