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3EM13853AF
Issue 01, September 2007
DLP-130
Replace DS3 Card with a DS3 Card
PURPOSE
This procedure provides instructions to replace a 12-port DS3 card with another 12-port DS3 card.
To replace a DS3 card with an ECC card, refer to DLP-147.
PREREQUISITES
Normally, this procedure is performed to replace a failed (inactive) module. Always verify module
state before removal.
If a DS3 card has a state of OOS-AU or OOS-AUMA, perform the appropriate trouble clearing
procedures before replacing the module. Refer to IXL-101.
It is recommended to disconnect loopback and test connections before proceeding with the
replacement procedure. The TYPE parameter of a DS3 card cannot be changed while any of its ports
are in a Loopback state (SST is LPBK) or in a Test state (SST is TACC).
GENERAL
DS3 and ECC working modules can be mixed within the same protection group if the protection
module is an ECC. An ECC/DS3 card protection group is defined when the corresponding protection
slot is provisioned. Refer to table 130-A. The ECC module can operate in an unprotected mode. If the
protection module is a DS3 module, all working modules in the protection group must be DS3. There
is no restriction on the provisioning order.
Table 130-A. Slot Definitions for ECC and DS3 Card Protection Groups
For information on TL1 command syntax, refer to the 1677 SONET Link Commands and Messages
manual (PN 3EM13852AF).
STEP
PROCEDURE
1
DANGER: Possibility of personal injury. Cards can be installed or removed with rack
power on. Hazardous electrical potentials are present; use extreme care when
installing or removing cards with power on.
Replace DS3 Card with a DS3 Card
Protection Slot
1A
1B
17A
17B
Working Slot
2A, 3A, 4A, 5A
2B, 3B, 4B, 5B
16A, 15A, 14A, 13A
16B, 15B, 14B, 13B
DLP-130
5-43
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