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3EM13853AF
Issue 01, September 2007
DLP-147
Replace DS3 Card with an ECC Card
PURPOSE
This procedure provides instructions to replace a 12-port DS3 card with a 12-port ECC card.
To replace a DS3 card with another DS3 card, see DLP-130.
PREREQUISITES
Although these procedures are normally done 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.
This procedure should be performed during a maintenance window. Cross-connections and facilities
must be deleted on working slot DS3 cards before the ECC card can be entered into service.
It is recommended to disconnect loopback and test connections before proceeding with the
replacement procedure. The TYPE parameter of a DS3 card or an ECC card cannot be changed while
any of their 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 147-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 147-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).
Replace DS3 Card with an ECC 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-147
5-105
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