OS-3111/3211        Optical Cut Off Switch    Click for large image of Fiber Optic Switch  
For Optic Signal Selection Applications  

  Block Diagram of Fiber Optic Swtich Operation

The OS-3111 is a fiber optic switch that can be controlled remotely or through a front panel switch. The optical path through the units is purely optical. That is there is no optical to electrical to optical conversion. There is no electrical loss or electrical bandwidth limit on the fiber optic path. The optical path can be select via a front panel switch or via contact closure input. In event of loss of power, the unit has a fail safe mode that opens the switch. 

Common applications for this device are optical routing, system bypass, network cut off switch, and fiber optic testing. The OS-3111 control can be daisy chained to switch multiple optical connections. For two OS-3111 mounted in a single housing, order the OS-3211.

Specifications Important Features
Switching Time  < 10 ms     Switching time <10ms
Back Reflection  < -50 dB   Fail-safe return to bypass
    mode with loss of power
Insertion Loss  < 1.3 dB    Multimode & Single mode
Cross Talk  < -50 dB   Power and Switch status
Switch Life cycle  > 1 Million cycles   Stand-alone, DIN or Rack
    Mountable (same unit)
Operating Wavelength  850/1310, or 1310/1550nm   Small physical footprint
Optical Connectors  ST/PC,  FC/PC, or SC    
Power Requirements*  11-24 VAC/DC @150mA  
Operating Temperature  0 to +70 C
Humidity <95% non-condensing    
MTBF (per MIL HBK 217) >120,000 hours    
Physical Size Dual (mm) 5.0" (127) x 3.0" (76) x 2.23" (56.6)    
Physical Size Single (mm)  5.0"(127)H  x 1.0"(25.4)W
     x 3.0"(76)L

Note all specifications are subject to change without notice
* -48VDC only models available by request
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