Carrier Access Access Navigator Manual De Usuario
16-4
August 2003
Access Navigator - Release 1.8
Maintenance Procedures
Precautions
Precautions
WARNING!
T
HE
A
CCESS
N
AVIGATOR
CONTAINS
CIRCUIT
CARDS
AND
COMPO
-
NENTS
THAT
ARE
SUBJECT
TO
DAMAGE
BY
ELECTROSTATIC
DISCHARGE
(ESD).
A
LWAYS
FOLLOW
THE
WHEN
OPENING
EQUIPMENT
COVERS
AND
HANDLING
PLUG
-
IN
CIRCUIT
CARDS
.
CAUTION!
S
ERVICE
DISRUPTIONS
WILL
OCCUR
IF
THE
ACTIVE
C
ONTROLLER
CARD
IS
REMOVED
WITHOUT
AN
OPERATIONAL
STANDBY
C
ONTROLLER
. T
O
AVOID
SERVICE
DISRUPTIONS
,
ALWAYS
REPLACE
THE
STANDBY
C
ONTROLLER
FIRST
. I
N
A
PROTECTED
SYSTEM
WITH
TWO
C
ONTROLLER
CARDS
,
THE
ACTIVE
C
ONTROLLER
SHOULD
BE
SWITCHED
TO
STANDBY
MODE
BEFORE
REMOVING
. I
N
AN
UNPROTECTED
SYSTEM
WITH
ONLY
ONE
C
ONTROLLER
CARD
,
THE
NEW
C
ONTROLLER
SHOULD
BE
INSTALLED
AND
SWITCHED
TO
ACTIVE
MODE
BEFORE
REMOVING
THE
OLD
C
ONTROLLER
.
S
ERVICE
DISRUPTIONS
MAY
OCCUR
IF
TWO
C
ONTROLLER
CARDS
ARE
INSTALLED
WITH
INCOMPATIBLE
SOFTWARE
,
SUCH
AS
ONE
DCS
CARD
AND
ONE
GR-303
CARD
. N
O
DISRUPTIONS
WILL
OCCUR
UNTIL
THE
INCOMPATIBLE
CARD
IS
SWITCHED
INTO
THE
ACTIVE
MODE
,
ALLOWING
TIME
TO
SAFELY
REMOVE
THE
INCOMPATIBLE
CARD
. I
F
YOU
WISH
TO
INSTALL
A
C
ONTROLLER
THAT
IS
NOT
COMPATIBLE
,
VERIFY
PROVISIONING
WITH
OFFICE
RECORDS
,
BOTH
BEFORE
AND
AFTER
INSTALLATION
,
TO
ENSURE
THAT
NO
CIRCUITS
HAVE
BEEN
ALTERED
.
Tools and Materials Required
1. Obtain the following tools and materials.
l
Office records for installation site
l
Screwdrivers, slotted
l
Grounding wrist strap
l
Controller card
l
User name and password (if required)
2. Unpack and inspect Controller card for damage.
l
Do not remove circuit cards from anti-static wrappers without following proper anti-static
procedures.
procedures.
l
Verify that equipment to be installed agrees with office records.