The D12 dual 1x2 optical switch is equivalent to two S12 single 1x2 fiber optic switches in one switch that change state together and cannot be switched independently, with 6 fibers and 2 states.  In state 1, input fiber 1 is connected to output fiber 6 and input fiber 4 is connected to output fiber 3. In state 2, input fiber 1 is connected to output fiber 5 and input fiber 4 is connected to output fiber 2.
 
This non-latching version of the D12N Singlemode switch requires continuous drive current and functions like a conventional relay, which may not retain state during a power loss.
 
Cables and Cable Length
   All cables are 900µm tight buffer and 1.0 meter length.  Custom lengths are available at additional cost.
 
Voltage
   Standard input voltage 5 Volts and a 50 ohm coil.  Other options are available on request.