Analog (POTS) FXS/FXO Fiber Products
FiberPlex FOI-2971 Fiber Optic Isolator/Converter/Modem - POTS (FXO/FXS); mission critical packaging



Packed in rugged military style metal enclosure, the FOI-2971 extends and isolates Analog POTs over Fiber


Overview
The FOI-2971 and FOI-4972 provide complete electrical isolation for 2-wire telephone communications. The FOI-4972 supports standard analog phones, STU-III (secure telephone unit) phones, STE (secure telephone equipment) phones, fax machines, and modems and supports Caller ID. 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.

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. FiberPlex recommends “R” units for high security applications because the units have added filtering and shielding for RFI suppression.

FOI version units can be mounted in several redundant powering chassis; rack and wall mount options including Tempest and NEMA alternatives.

Applications
A typical link consists of an FOI-2971 connected to the POTS line and an FOI-4972 at the subscriber’s phone with a duplex fiber optic cable between them.

FOI-2971 applications


Features
  • Converts standard POTs FXS/FXO to Fiber for Isolation and Extension
  • Useable for standard phones, STU-III and STE Phones, Fax Machines or Modems
  • The FOI-2971 connects to POTS Lines while the FOI-4972 connects to telephonic devices
  • The FOI-4972 has solid state relays on the outer black and yellow pair which can be used to activate external signaling devices when ringing is detected
  • FOI-4972s can be connected back to back to create a private line automatic ring-down circuit
  • Rugged metal enclosures with RFI shielding
 
Ordering
# Model # Description Availability
1 FOI-2971-RS-ST Isolator for telephone (POTS), exchange side, Singlemode ST optics, RFI suppressed, Power Options Sold Separately Special Order
 
 Accessories
2 FOI-2971-R-ST Isolator for telephone (POTS), exchange side, Multimode ST optics, RFI suppressed, Power Options Sold Separately Available to Order; Coming Soon
 
 Accessories
3 FOI-2971-S-ST Isolator for telephone (POTS), exchange side, Singlemode ST optics, Power Options Sold Separately Available to Order; Coming Soon
 
 Accessories
4 FOI-2971-ST Isolator for telephone (POTS), exchange side, Multimode ST optics, Power Options Sold Separately Available to Order; Coming Soon
 
 Accessories
5 FOI-4972-RS-ST Isolator for telephone (POTS) instrument side, fax, STU or STE, or dial-up modem interface. V.90, Singlemode ST optics, RFI suppressed, Power Options Sold Separately Special Order
6 FOI-4972-R-ST Isolator for telephone (POTS) instrument side, fax, STU or STE, or dial-up modem interface. V.90, RFI suppressed, Multimode ST optics, Power Options Sold Separately Available to Order; Coming Soon
 
 Accessories
7 FOI-4972-S-ST Isolator for telephone (POTS) instrument side, fax, STU or STE, or dial-up modem interface. V.90, Singlemode ST optics, Power Options Sold Separately Available to Order; Coming Soon
 
 Accessories
8 FOI-4972-ST Isolator for telephone (POTS) instrument side, fax, STU or STE, or dial-up modem interface. V.90, Multimode ST optics, Power Options Sold Separately Available to Order; Coming Soon
 
 Accessories

 


 
 
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