7 Routing Cables
16
To ODF
Fiber (SC)
≤ 57±1 mm
• When optical modules are 
preinstalled to boards before 
delivery, ensure that optical 
modules are properly installed 
before connecting fibers to 
boards. 
• To facilitate the subsequent 
maintenance, bundle the newly 
routed optical fiber with the 
originally routed optical fiber 
firmly. Ensure that the height of 
the bundled optical fibers is 
lower than 55 mm.
Fiber 
(SC)
Binding 
position 1 
(ports 0-4)
Binding 
position 2 
(ports 0-9)
Binding 
position 3 
(ports 0-15)
• When handling optical fibers, do not stand close to or look into the optical fiber outlet directly 
with naked eyes.
• Lead the optical fiber through a corrugated pipe. The mouth of the corrugated pipe must be 
wrapped with the adhesive tape. In the cabinet, the corrugated pipe should not be longer than 
100 mm. In addition, the corrugated pipe is bound at the cabling aperture.
• The bending radius of the optical fiber should be more than 20 times the cable radius. In 
general, the bending radius of the optical fiber is more than or equal to 40 mm.
7.8 Routing Optical Fibers (GPON Board)