CANOGA PERKINS 2345 T3 Fiber Optic Modem - Manual (Page 35)

EdgeAccess Universal Chassis System
Model 2345 User Manual 4-5
Alternately, in a standalone 2345, only, you can set the Loopback switch on the front panel for Loc
(local) or Rem (remote) loopback; see Figures 6 and 9. For normal operation, keep the switch at Off.
Fiber Link
Figure 5. Normal Operation
AIS
Figure 6. Local Loopback
Figure 7. Local Bidirectional Loopback
Figure 8. Local Loopback at Both Ends