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: