Chapter 6: System Control Module (SCM)
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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Upgrading the SCM to 1 GB — Simplex System
Perform the following steps to upgrade the SCM in a C4c CMTS or a simplex system:
Be sure that you are wearing an ESD strap and use ESD precaution when handling the SCM card(s) and DIMM modules.
1.
Power down the CMTS.
2.
Remove the SCM from the CMTS chassis, and place onto a flat, grounded antistatic mat with the component side up.
3.
Remove the DIMM from the connector by prying outward on the ejector latches located at both ends of the connector.
Temporarily retain the 512 MB DIMM module in the static-proof bag in which the 1GB DIMM was shipped in the event
of an upgrade failure.
4.
Replace the removed DIMM module with the new DIMM shipped with the Upgrade Kit. The label must face upward
and the DIMM must be centered in the connector. Press firmly against the back edge of the DIMM module using your
thumbs.
Slide the DIMM into the connector until the latches at both ends snap into the locking notches on the DIMM module.
5.
Reinsert the upgraded SCM into the CMTS chassis.
6.
Apply the new front label supplied in the Upgrade Kit by placing it over the top of the existing label in the concave
area.
7.
Allow the SM to boot up in the CMTS chassis. If the SCM fails to boot, remove the SCM from the chassis, then remove
and reseat the SDRAM DIMM module. Then reinsert the SCM into the chassis.
8.
If the SCM fails to boot a second time, obtain the serial port output and contact technical support at ARRIS.
9.
Once the upgraded SCM had booted, enter:
show version detail <slot>
The output should indicate that the SDRAM is 1024MB.
Virtual System Controller
The Virtual System Controller feature offers the operator the ability to direct the console port on either SCM to the active
or standby SCM. This takes place once the SCMs are in service.
Use the following command if you want the console port to be always redirected to the active SCM (this is the default
setting):
configure line console 0 1 connect active
