The OS-3122 is a “fiber optic relay” that can be
electrically controlled. The optical path through the units is purely
optical; i.e. 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 failsafe mode that
returns the switch in to bypass mode.
Common applications for this device are optical routing, system bypass, ring
network restoration, and loop-back testing.
For applications where two independent optical channels
need to be switched, such as dual SONET rings, the OS-3222 is two OS-3211 in
a single package.
For those that have telco applications, the OS-3122 and
OS-3222 also are available as versions that operate
from -48 VDC. These versions are the OS-1202, OS-2202, respectively. |