Cisco ONS 15454 Series User Manual

12-10
Cisco ONS 15454 Procedure Guide, R5.0
January 2005
Chapter 12 Upgrade Cards and Spans
NTP-A254 Downgrade a DS3-12E/DS3NE Card to a DS3-12/DS3N-12 Card
Note If you have upgraded to a DS3XM-12 or DS3/EC1-48 card and are using 734A cables with UBIC
electrical interface adapters (EIAs), you must set the line build out (LBO) parameter for Ports
13 to 48, doing so according to the actual distance (in feet) from the DSX panel. If you
incorrectly set the LBO for these cards and ports, the terminal loopback might not work on Ports
14 and 17 on cards installed in Slots 1 or 17.
If you are using 735A cables, you must set the LBO parameter for Ports 13 to 48, doing so
according to the following conventions:
Actual distance from the DSX panel is less than 110 feet (33.53 m):
LBO setting is ” 0 - 225.”If you incorrectly set the LBO for these cards and ports, the terminal
loopback might not work on Ports 14 and 17 on cards installed in Slots 1 or 17 with unterminated
cable pairs.
Actual distance from the DSX panel is greater than or equal to 110 feet (33.53 m):
LBO setting is “226 to 450.” However, the terminal loopback might not work on Ports 14 and
17 on cards installed in Slots 1 or 17 when used in this configuration with unterminated cable
pairs. If the terminal loopback does not function, create a physical loopback at the DSX panel.
Step 15 Repeat Steps 4 through 14 for any other low-density cards you want to upgrade to high-density cards.
Stop. You have completed this procedure.
NTP-A254 Downgrade a DS3-12E/DS3NE Card to a
DS3-12/DS3N-12 Card
Note All ports must be provisioned as UNFRAMED and have Path Trace disabled.
Note Working cards must be downgraded before protect cards.
Purpose This task downgrades a DS3-12E or DS3NE card. Downgrading can be
performed to back out of an upgrade.The procedure for downgrading is
the same as upgrading except you choose DS3-12 or DS3N-12 from the
Change Card drop-down list.
Tools None
Prerequisite Procedures NTP-A17 Install the Electrical Cards, page 2-8
Required/As Needed As needed
Onsite/Remote Onsite
Security Level Provisioning or higher

Cisco ONS 15454 Series Specifications

General

Supported Interfaces	Ethernet
Management	Cisco Transport Controller (CTC), TL1, SNMP
Power Supply	-48 VDC or AC (depending on power supply module)
Operating Temperature	0 to 50°C (32 to 122°F) - varies by module
Storage Temperature	-40°C to 70°C (-40 to 158°F)
Relative Humidity	5 to 95%, noncondensing
Supported Protocols	SONET/SDH, Ethernet, OTN
Platform Type	Multi-service transport platform