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Procedure 7-16
Replacing an NT7E05 OC-12 VTBM optical interface
Use this procedure to replace an OC-12 virtual tributary bandwidth manager
(VTBM) optical interface in an access bandwidth manager (ABM) shelf.
Certain steps carried out during the replacement of optical interface cards may
require the handling of optical fibers without dust caps, and therefore increase
the risk of exposure to laser radiation. Exposure either to visible or invisible
laser light could cause serious eye damage under certain conditions.
The caution label at the right appears on the optical
interface card, near the optical connection, and must
be complied with.
Action
Step
AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0
Replacing modules in a common-equipment shelf 7-37
DANGER
Risk of eye injury
Do not look into, or otherwise expose your eyes to, the laser
radiation emitting from optical fibers. Doing this could cause
serious eye damage or blindness.
At all times when handling optical fibers, follow the safety
procedures recommend by your company.
Read and observe all warnings and safety notices in
Chapter 1, "Safety guidelines and warnings."
Action
If replacing
the active OC-12
the standby OC-12
a failed or out-of-service OC-12
—continued—
Caution
Avoid direct exposure to
beam. Invisible light can
blind. Keep all optical
connectors capped.
Then go to
step 1
step 4
step 6
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