Intercom, Alarm and Emergency Notification Systems
FiberPlex FOI-2980 Fiber Optic Isolator/Converter/Modem - annunciator audio with doorbell; mission critical packaging


Packed in rugged military style metal enclosures, the FOI-2980 Series delivers 2-channels of Line Level Audio with Doorbell In over Fiber


Overview
The FOI-2980 Series and FOI-4982 provide electrical isolation and audio line extension. A typical link consists of an FOI-2981 at one end of the network transmitting optical signals to an FOI-4982 at the other end of the network. This multi-use box is excellent for providing voice announcements, background music and dry-contact doorbell connectivity over fiber.

Because is supports multiple audio inputs, the system can support one input for voice announcements and another for background music while providing dry contact for doorbell. Inputs are prioritized for remote play whereby input A overrides inputs B and C and C overrides B.

The unit 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 copper wiring. Multimode optics on the units can extend the distance to 2km.

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 either an FOI-2981 or an FOI-2983 at one end of the network transmitting optical signals to an FOI-4982 at the other end of the network with a single fiber optic cable.

FOI-2980 applications


Features
  • Isolates and extends multiple audio channels over Fiber
  • Rugged metal enclosures with RFI shielding
 
Ordering
# Model # Description Availability
1 FOI-2981-ST Isolator for annunciator input, 2 line level audio in, 1 contact closure for doorbell function, Multimode ST optics (TX only), Power Options Sold Separately Special Order
 
 Accessories
2 FOI-2983-ST Isolator for annunciator 70 volt input, 1 contact closure for doorbell function, multimode ST optics (TX only), Power Options Sold Separately Special Order
 
 Accessories
3 FOI-4982-ST Isolator for annunciator output, line level and 8 ohm audio outputs, Multimode ST optics (RX only), Power Options Sold Separately Special Order
 
 Accessories

 


 
 
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