365-575-102 CircuitOrder:
Issue 8.0, July 2002 Page 1 of 6
NTP-015
ChangeanOC-12LinkFrom0x1to1+1Protection
Mode
DOITEMSBELOWINORDERLISTED........ FORDETAILS,GOTO
1. Overview: This procedure enables you to change an OC-12 Low Speed
optical link from 0x1 protection mode to 1+1 protection mode without causing
a service impairment.
Required Test Equipment:
Craft Interface Terminal (CIT)
Wrist Strap
!
WARNING:
Unterminated optical connectors may emit invisible laser radiation. Eye
damage may occur if the beam is viewed directly or with improper optical
instruments. Avoid direct exposure to beam.
!
CAUTION:
Use a static ground wrist strap whenever handling circuit packs or
working on an FT-2000 terminal to prevent electrostatic discharge
damage to sensitive components. See "Electrostatic Discharge (ESD)
Considerations" in Trouble Clearing: TAD-100.
Obtain the Circuit Order work instructions and
identify the quad that is specified for use as the
“Protection Link”.
—
NOTE:
The Service and Protection quad pairs are (1b and 3b) or (5b and 7b).
The “Service quad” has either 1b or 5b as its quad address. The
“Protection quad” has either 3b or 7b as its quad address.
NOTE:
This procedure assumes that the Service quad is already equipped with
an OC-12 circuit pack.
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