Nortel DMS-100 Series Maintenance Manual page 227

15
WARNING
Avoid contaminating the fiber tip surface
Do not touch the tip of the fiber. Dirt or oil from the
skin transferred to the fiber tip surface degrades fiber
performance.
WARNING
Fiber cable may become damaged
Take care when handling fiber cables. Do not crimp
or bend fiber cables to a radius of less than 25 mm
(1 in.).
Disconnect the fiber optic cables.
a. Twist the plug retainer to unlock the retaining pin from the retaining groove
b. Rotate the plug retainer so the retaining pin enters the guide slot.
c. Gently pull on the plug retainers, moving the guide pin along the slot to
remove the ferrule from the sleeve.
d. Fit dust caps to the open ends of the fiber links.
Sleeve Guide slot
Retaining pin
Ferrule
DMS-100 Family SMS Maintenance Manual XPM10 and up
Card replacement procedures 7-21
in a SMS
Guide pin
Retaining groove
NT6X40
(continued)
Plug retainer