Fiber Optic Diagnosis
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When checking attenuation, the OPPS or OPS tester should be used in conjunction with the DISplus/GT-1.
The Optical Testing and Programming System (OPPS) can be used as a substitute diagnostic head for diagnosis, or to expedite programming procedures. The OPPS can also be used to check attenuation on both the MOST or byteflight bus.
The OPS is an abbreviated version of OPPS. The OPS does not have the capability to check attenuation on the byteflight bus. OPPS and OPS appear similar, but are different in color. OPPS is gray and yellow, while OPS is gray and orange.