12-13
Cisco ONS 15454 Procedure Guide, R5.0
January 2005
Chapter 12 Upgrade Cards and Spans
NTP-A94 Upgrade OC-N Cards and Spans Automatically
Warning
Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed
circuitry could constitute an energy hazard.
Statement 206
Caution Do not perform any other maintenance operations, such as facility or terminal loopbacks, or add any
circuits during a card or span upgrade.
Note OC-N transmit and receive levels should be in their acceptable range as shown in the specifications for
each card in Table 2-3 on page 2-15.
Note During the upgrade, the IMPROPRMVL alarm may be raised. It will clear automatically.
Note A four-port OC-3 to eight-port OC-3 upgrade, or an OC-12 to four-port OC-12 upgrade can only be
performed from multispeed slots (Slots 1 to 4 and 14 to 17) because the OC3-8 and OC12-4 card can
only be installed in multispeed slots. Ensure that the OC-3 and OC-12 cards are in multispeed slots
before performing a span upgrade to the OC3-8 and OC12-4. The four OC-3 ports will be mapped to
Ports 1 to 4 on the eight-port OC-3 card. The OC-12 port will be mapped to Port 1 on the four-port OC-12
card.
Note BLSR protection channel access (PCA) circuits, if present, will remain in their existing STSs. Therefore,
they will be located on the working path of the upgraded span and will have full BLSR protection. To
route PCA circuits on protection channels in the upgraded span, delete and recreate the circuits after the
span upgrade. For example, if you upgrade an OC-48 span to an OC-192, PCA circuits on the protection
STSs (STSs 25 to 48) in the OC-48 BLSR will remain in their existing STSs (STSs 25 to 48) which are
working, protected STSs in the OC-192 BLSR. Deleting and recreating the OC-48 PCA circuits moves
the circuits to STSs 96 to 192 in the OC-192 BLSR. To delete circuits, see the “NTP-A278 Modify and
Delete Overhead Circuits” procedure on page 9-4. To create circuits, see Chapter 6, “Create Circuits and
VT Tunnels.”
Step 1 Determine the type of upgrade you need to make and be sure you have the necessary cards.Valid card
upgrades include:
• Four-port OC-3 to eight-port OC-3
• Single-port OC-12 to four-port OC-12
Valid span upgrades include:
• Single-port OC-12 to OC-48
• Single-port OC-12 to OC-192
• OC-48 to OC-192
Onsite/Remote Onsite
Security Level Provisioning or higher
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