Analog (POTS) FXS/FXO Fiber Products
FiberPlex FOM-3840 Fiber Optic Multi-Port Module - 4 channels of POTS (FXO/FXS); modular card style

Overview
The FOM-3841 and FOM-3842 provide complete electrical isolation for four independent channels of 2-wire telephone communications. FOM-3841 (FXO) connects to the POTS (plain old telephone service) line while the FOM-3842 (FXS) connects directly into standard analog phones or modems. The FOM-3842 is also compatible with STU-III (secure telephone unit) phones, STE (secure telephone equipment) phones, fax machines, and modems.

The units can be used in areas of high electrical noise or in and out of RF shielded enclosures. The fiber optic cable is not susceptible to interference caused by impulse noise, crosstalk, or EMI. Privacy of communications is also enhanced because the fiber optic cable does not radiate any emissions. In addition, fiber optic cable offers much longer transmission distances than traditional telephone line cord wiring. Multimode optics on the units can extend the distance to 2km, while singlemode optics can further extend the distance to 20km.

Applications
A typical link consists of an FOM-3841 connected to the POTS line and an FOM-3842 at the subscriber’s phone with a duplex fiber optic cable in between.

Features

• Card Module for the FOM system supporting stand-alone or multi-card 19” rack mounting
• Connects to standard Analog/POTS Telephone, Secure STU-III and STE Phones, Fax Machines, Modems or Radios
• Connects to Analog Trunks
• Can be used back-to-back for a private-line automatic-ringdown circuits
• Caller ID supported

Ordering

# Model # Description Availability 1 FOM-3841-C 4 Channel Isolator for telephone (POTS), exchange side, SFP cage, no optical module General Availability    Accessories Additional Charge: Rack PSM-5000   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 90-260 VAC, 40-400 Hz input, 250 Watts PSM-5048   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 24-48 VDC input, 250 Watts RMC-5000 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5000 AC power supply, cooling fans RMC-5000-D 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5048 DC power supply, cooling fans SFP SFP-OC SFP optical modules for standard digital communications Standalone Operation SAC-1-AC Stand-alone, single slot chassis for FOM series isolator cards (includes AC Power Supply) SAC-1-DC Stand-alone, single slot chassis for FOM series isolator cards (includes DC Power Supply) 2 FOM-3841-L12 4 Channel Isolator for telephone (POTS), exchange side, Multimode LC Optics General Availability    Accessories Additional Charge: Rack PSM-5000   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 90-260 VAC, 40-400 Hz input, 250 Watts PSM-5048   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 24-48 VDC input, 250 Watts RMC-5000 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5000 AC power supply, cooling fans RMC-5000-D 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5048 DC power supply, cooling fans Standalone Operation SAC-1-AC Stand-alone, single slot chassis for FOM series isolator cards (includes AC Power Supply) SAC-1-DC Stand-alone, single slot chassis for FOM series isolator cards (includes DC Power Supply) 3 FOM-3841-L5B 4 Channel Isolator for telephone (POTS), exchange side, Singlemode LC Optics General Availability    Accessories Additional Charge: Rack PSM-5000   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 90-260 VAC, 40-400 Hz input, 250 Watts PSM-5048   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 24-48 VDC input, 250 Watts RMC-5000 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5000 AC power supply, cooling fans RMC-5000-D 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5048 DC power supply, cooling fans Standalone Operation SAC-1-AC Stand-alone, single slot chassis for FOM series isolator cards (includes AC Power Supply) SAC-1-DC Stand-alone, single slot chassis for FOM series isolator cards (includes DC Power Supply) 4 FOM-3841-T12 4 Channel Isolator for telephone (POTS), exchange side, Multimode ST Optics General Availability    Accessories Additional Charge: Rack PSM-5000   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 90-260 VAC, 40-400 Hz input, 250 Watts PSM-5048   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 24-48 VDC input, 250 Watts RMC-5000 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5000 AC power supply, cooling fans RMC-5000-D 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5048 DC power supply, cooling fans Standalone Operation SAC-1-AC Stand-alone, single slot chassis for FOM series isolator cards (includes AC Power Supply) SAC-1-DC Stand-alone, single slot chassis for FOM series isolator cards (includes DC Power Supply) 5 FOM-3841-T5B 4 Channel Isolator for telephone (POTS), exchange side, Singlemode ST Optics General Availability    Accessories Additional Charge: Rack PSM-5000   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 90-260 VAC, 40-400 Hz input, 250 Watts PSM-5048   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 24-48 VDC input, 250 Watts RMC-5000 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5000 AC power supply, cooling fans RMC-5000-D 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5048 DC power supply, cooling fans Standalone Operation SAC-1-AC Stand-alone, single slot chassis for FOM series isolator cards (includes AC Power Supply) SAC-1-DC Stand-alone, single slot chassis for FOM series isolator cards (includes DC Power Supply) 6 FOM-3842-C 4 Channel Isolator for telephone (POTS) instrument side, fax, STU or STE, or dial-up modem interface. V.90, SFP cage, no optical module General Availability    Accessories Additional Charge: Rack PSM-5000   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 90-260 VAC, 40-400 Hz input, 250 Watts PSM-5048   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 24-48 VDC input, 250 Watts RMC-5000 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5000 AC power supply, cooling fans RMC-5000-D 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5048 DC power supply, cooling fans SFP SFP-OC SFP optical modules for standard digital communications Standalone Operation SAC-1-AC Stand-alone, single slot chassis for FOM series isolator cards (includes AC Power Supply) SAC-1-DC Stand-alone, single slot chassis for FOM series isolator cards (includes DC Power Supply) 7 FOM-3842-L12 4 Channel Isolator for telephone (POTS) instrument side, fax, STU or STE, or dial-up modem interface. V.90, Multimode LC Optics General Availability    Accessories Additional Charge: Rack PSM-5000   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 90-260 VAC, 40-400 Hz input, 250 Watts PSM-5048   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 24-48 VDC input, 250 Watts RMC-5000 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5000 AC power supply, cooling fans RMC-5000-D 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5048 DC power supply, cooling fans Standalone Operation SAC-1-AC Stand-alone, single slot chassis for FOM series isolator cards (includes AC Power Supply) SAC-1-DC Stand-alone, single slot chassis for FOM series isolator cards (includes DC Power Supply) 8 FOM-3842-L5B 4 Channel Isolator for telephone (POTS) instrument side, fax, STU or STE, or dial-up modem interface. V.90, Singlemode LC Optics General Availability    Accessories Additional Charge: Rack PSM-5000   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 90-260 VAC, 40-400 Hz input, 250 Watts PSM-5048   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 24-48 VDC input, 250 Watts RMC-5000 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5000 AC power supply, cooling fans RMC-5000-D 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5048 DC power supply, cooling fans Standalone Operation SAC-1-AC Stand-alone, single slot chassis for FOM series isolator cards (includes AC Power Supply) SAC-1-DC Stand-alone, single slot chassis for FOM series isolator cards (includes DC Power Supply) 9 FOM-3842-T12 4 Channel Isolator for telephone (POTS) instrument side, fax, STU or STE, or dial-up modem interface. V.90, Multimode ST Optics General Availability    Accessories Additional Charge: Rack PSM-5000   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 90-260 VAC, 40-400 Hz input, 250 Watts PSM-5048   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 24-48 VDC input, 250 Watts RMC-5000 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5000 AC power supply, cooling fans RMC-5000-D 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5048 DC power supply, cooling fans Standalone Operation SAC-1-AC Stand-alone, single slot chassis for FOM series isolator cards (includes AC Power Supply) SAC-1-DC Stand-alone, single slot chassis for FOM series isolator cards (includes DC Power Supply) 10 FOM-3842-T5B 4 Channel Isolator for telephone (POTS) instrument side, fax, STU or STE, or dial-up modem interface. V.90, Singlemode ST Optics General Availability    Accessories Additional Charge: Rack PSM-5000   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 90-260 VAC, 40-400 Hz input, 250 Watts PSM-5048   (Qty: 1) Spare \ Redundant power supply F/U/W RMC-5000 series rack mount chassis, 24-48 VDC input, 250 Watts RMC-5000 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5000 AC power supply, cooling fans RMC-5000-D 19 in EIA Rack mount chassis, 7 in (4RU) for up to 16 FOM series isolator cards, rear access, includes one PSM-5048 DC power supply, cooling fans Standalone Operation SAC-1-AC Stand-alone, single slot chassis for FOM series isolator cards (includes AC Power Supply) SAC-1-DC Stand-alone, single slot chassis for FOM series isolator cards (includes DC Power Supply)