Ruijie RG-MAP852-SF-M Hardware Installation And Reference Manual page 34

Hardware Installation and Reference Guide
Figure 3-7 Connecting the Optical Fiber
(6) After installing and coiling the fiber, use the pins on the device to fix the device on the
bracket. Align the pins with the holes on the bracket and buckle them down.
Insert the optical fiber connector into
the optical module, and lead the
external cable from this entrance to the
fiber spool.
Coil the external optical fiber and
lead it out here.
Coil the optical fiber in the trough
through the gap. After the optical fiber
is coiled, verify that the optical fiber
does not exceed the trough.
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Insert the optical fiber connector
into the optical module.
Installation