RAD FOM-E1T1

FOM-E1/T1 E1/T1 Fiber Optic Modem FEATURES DESCRIPTION • Fiber optic modem, • The FOM-E1/T1 fiber optic modem converts an E1/T1 extending the range of electrical signal into an optical E1/T1 services over fiber signal. After the conversion, the optic cables up to 100 km signal is transmitted over fiber optic (62 miles) cable, extending the E1/T1 service • Transparent to E1/T1 range up to 100 km (62 miles). framing (G.704) • FOM-E1/T1 supports various optical interfaces: • Operates opposite RAD's � 850 nm for multimode fiber DXC cross-connect system, � 1310 nm for single or Megaplex access multimode fiber multiplexers and FCD access � 1550 nm for extended range units over single mode fiber. • Available with laser diode • FOM-E1/T1 operation complies option for extended ranges with ITU G.703 and G.955 standards. • Conforms to all relevant ITU series standards, including • The modem supports activation of V.54 diagnostics support local and remote loopbacks in compliance with ITU V.54. • Operates over single mode • Alarm relay port transmits the or multimode fibers following alarm conditions: • Relays minor and major � Major alarm – Low level of alarm conditions E1/T1 electrical input or high bit error rate at the fiber optic • Includes front panel LED interface indicators for status � Minor alarm – AIS received at monitoring electrical or fiber optic interface. • Front panel LEDs indicate system faults in the electrical and fiber optic circuits. • FOM-E1/T1 is also available as a plug-in card for RAD’s ASM-MN-214, 19-inch card cage. FOM-E1/T1 E1/T1 Fiber Optic Modem SPECIFICATIONS • Indicators ORDERING PWR – ON when the unit is powered up E1/T1 ELECTRICAL INTERFACE FOM-E1/T1/*/#/& OPTICAL AIS – ON when "all 1s" • Transmission Rate E1/T1 fiber optic modem string is received at fiber optic � E1: 2.048 Mbps interface FOM-E1/T1/R/#/& � T1: 1.544 Mbps OPTICAL ERR – ON when bit E1/T1 fiber optic modem, card -6 • Zero Suppression error rate is 10 or worse version for ASM-MN-214 card cage � E1: HDB3 ELECTRICAL LOW – ON when � T1: B8ZS electrical interface input is * Specify power supply: below G.703 level 115 for 115 VAC • Impedance ELECTRICAL AIS – ON when � 230 for 230 VAC E1: 75Ω unbalanced or "all 1s" string is received at 120Ω balanced 24 for 24 VDC electrical interface � T1: 100Ω balanced 48 for -48 VDC • Alarm Relay Port • Connectors # Specify fiber optic interface type Dry contact via 15-pin, D-type, � Balanced: 15-pin D-type, female (# for connector type, followed female connector. � Unbalanced: two BNC by & for optical wavelength): Operates as Normally Open and ST for ST type connector Normally Closed, using different FIBER OPTIC INTERFACE SC for SC type connector pins. • Specifications and Ranges FC for FC/PC type connector • Power See Table 1 AC: 115 or 230 VAC (±10%), & 85 for 850 nm, multimode, VCSEL • Connectors 47 to 63 Hz, 6W 13 for 1310 nm, single mode, LED ST, SC or FC/PC (see Ordering) DC: 24 VDC (±10%) or 13L for 1310 nm, single mode, -48 VDC (-36 to -72 VDC) laser diode GENERAL • Physical 15L for 1550 nm, single mode, • Diagnostics Height: 4.4 cm / 1.7 in laser diode Complies with ITU V.54; local Width: 17.9 cm / 7.0 in and remote loopbacks activated RM-9 Depth: 20.3 cm / 8.0 in via front panel slide switch Weight: 1.1 kg / 3.0 lb Special hardware for mounting one or two FOM-E1/T1 units in a 19-inch • Environment rack Temperature: 0–50°C/32–122°F Humidity: Up to 90%, non-condensing Table 1. FOM-E1/T1 Fiber Optic Interface Characteristics Wavelength Fiber Type Transmitter Power Receiver Typical Max. Type Sensitivity Range [dBm] [nm] [dBm] [km/miles] [µm] 850 62.5/125 multimode VCSEL -18 -38 5/3 1310 9/125 single mode LED -18 -40 38/24 1310 9/125 single mode Laser -12 -40 50/31 1550 9/125 single mode Laser -12 -40 100/62 APPLICATION Fiber Optic Link E1/T1 E1/T1 G.704 G.704 Up to 100 km (62 miles) FOM-E1/T1 FOM-E1/T1 284-100-08/02 PBX PBX  1987–2002 RAD Data Communications Ltd. Specifications are subject to change without prior notice. All other trademarks are the property of their respective holders.