Products  >  Datacom Industrial Connectivity  >  Fiber Alarming, Notification, Relay & Control  >  Line Level Stereo Audio (Analog) or E&M + Data (RS-232/422/485) Systems  >  FiberPlex FOI-7280 View Printable

Line Level Stereo Audio (Analog) or E&M + Data (RS-232/422/485) Systems
FiberPlex FOI-7280 Fiber Optic Isolator/Converter/Modem - line level stereo audio or E&M with data and contact closures; mission critical packaging


Packed in rugged military style metal enclosure, the FOI-7280 combines Line Level Audio together Serial Data & Control over Fiber.
Overview
Elegantly simple yet packed with an advanced feature set, the FOI-7280 is a powerful problem solver when it comes to routing audio or transporting E&M signals. The unit converts line level, stereo analog audio to fiber for long or short haul transport. In addition to the audio, a multi-format serial data connection (RS-232/422/485) and a bidirectional pair of ‘form C’ contact closures, are included. The combination of audio and signaling provides a seamless solution for 4-wire E&M applications, push-to-talk, intercom, audio distribution, railway signaling, and more.

Various advanced routing and networking options are available via DIP switch setting. In point-to-point mode basic audio inputs one unit map directly to audio outputs on the other unit and serial data and contact closures are a direct connection.

In Broadcast Mode one unit is configured as the master, which sets the clock and sampling rate. Analog and serial inputs to the master are sent to all the slaves, which output the data on their respective ports. No communication is sent from the slaves to any other units.

In Intercom or “Loop mode” one unit is configured as the master, which sets the clock and sampling rate. It polls the loop, with each unit in the loop adding its own input to the aggregated sample, gated by its push to talk, if enabled. When the sample returns back to the master, it then sends out that aggregated sample as the output for all units in the loop. All units forward the aggregated output around the loop until it returns to the master, which discards it. Serial data from the master is replicated on all slaves, and serial data from the slaves is aggregated to output on the master.

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

Applications
Applications for the FOI-7280 include Analog E&M, Audio Tie Lines with Control, Intercom/Loop and Railroad signaling.


E&M Type IV applications

E&M Type IV applications



Audio Tie Lines + Control applications

Audio Tie Lines + Control applications



Intercom/Loop applications

Intercom/Loop applications



Railroad Signaling applications

Railroad Signaling applications


Features
  • Supports balanced and unbalanced audio I/O
  • Supports E&M (ear and mouth) types II–V
  • High quality 24-bit audio
  • Ultra-wide DC to 45 kHz frequency response
  • Serial data rates from 0 to 1 Mbps
  • Rugged metal enclosures with RFI shielding
 
Ordering
# Model # Description Availability
1 FOI-7280-C Line Level Stereo Audio Transceiver with PTT, Serial Data and Controls, FOI Package, SFP Cage Only, Power Options Sold Separately General Availability
 
 Accessories

2 FOI-7280-L22 Line Level Stereo Audio Transceiver with PTT, Serial Data and Controls, FOI Package, 1310nm Multimode, LC optics, Power Options Sold Separately General Availability
 
 Accessories

3 FOI-7280-L5B Line Level Stereo Audio Transceiver with PTT, Serial Data and Controls, FOI Package, 1310nm Singlemode, LC optics, Power Options Sold Separately General Availability
 
 Accessories


 


 
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