Configure General Cs Settings - Patton electronics SmartNode Series Software Configuration Manual

23 • CS context overview
CS configuration. The IP configuration is not a topic in this example. For more information on IP configura-
tion refer to chapter 9, "IP context overview"
Configure general CS settings
There are several parameters which can not be collected into one specific configuration task, because they are
independent of the rest of the CS context configuration and apply mostly to a whole interface card or even to
the whole SmartNode.
In most cases the default value is suitable, so that you do not need to perform this configuration tasks.
• Configure clock source—The packaging of the ISDN voice frames needs a reference clock. It is possible to
generate this reference clock internally or get it from an external device (e.g. public ISDN). If you have a
connection to a public ISDN this is the normal case.
• Select PCM law—The PCM law-select specifies the voice characteristic compression curve. Two values are
possible: "a-Law" and "µ-Law". "a-Law" is used in Europe, and "µ-Law" in USA.
• Synchronize to ISDN time—The internal time of the SmartNode can be synchronized to the time on the
public ISDN.
• Set bypass mode—The SmartNode contains a hardware bypass, which connects two ISDN ports in case of
power failure. You can manually enable it on a running system.
This procedure describes how to set the general CS parameters
Mode: System
Step
1 node (sys)#no bypass-mode
2 node (sys)#clock-source internal
or
node (sys)#clock-source slot-number port-num-
ber
3 node (sys)#synchronize-to-isdn-time
4 node (sys)#ic voice slot-number
6 node (ic-voice)[ slot-number ]#pcm law-select
{ aLaw | uLaw }
280
on page 101.
Command
SmartWare Software Configuration Guide
Purpose
Turn off the hardware bypass.
Generate the reference clock internally
or
specify a specific port to receive the reference
clock.
Enable SmartWare to get the actual system time
from public ISDN.
Change to mode ic_voice.
Select the PCM aLaw for Europe or uLaw for USA
CS context configuration task list