the 2251d fiber links transmit a single channel of switch/status information or control-function signals over one single-mode fiber.

overview
the 2251d fiber links transmit a single channel of switch/status
information or control-function signals over one single-mode fiber.
 

programmable outputs
outputs are normally open (no) and normally closed (nc) reed
relays. a complete system consists of a transmitter and a receiver,
configured as standalone units or as rack cards.
 

superior diagnostics
the smarts™ diagnostic technology provides system status leds
that monitor the status of the data path and the optical signal.

standard features

• one-way transmission over one single-mode fiber
• single-channel contact closure
• fm transmission
• operates up to 20 miles (32 km)
• 13 db optical budget
• optical agc
• smarts diagnostics
• standalone and rack configurations

click on the link below to download the data sheet: