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T1/E1 & T3/E3 Commands
2-58 Configuring T1/E1 and T3/E3 Subsystems
Syntax
cablelength short{133 | 266 | 399 | 533 | 655}
Syntax of the “no” form
Thenoformofthiscommandreturnsthevaluetothedefaultsetting:
no cablelength short
Defaults
133feet
Mode
Controllerconfiguration:XSR(config-controller<xx>)#
Example
ThefollowingexamplesetstheshorthaulLBOto266feet:
XSR(config)#controller t1 1/0
XSR(config-controller<T1-1/0>)#cablelength short 266
channel-group
For T1/E1 controllers only
Thiscommandspecifiestimeslotsthatmaptochannel‐groupsforT1/E1/ISDN‐PRIdatalines(for
channelized/fractionalT1/E1/ISDN‐PRIservices).
Timeslotsandfractional/channelizedT1/E1groupsallowmultiplelogicalWANinterfacestobe
createdoutofasinglechannelizedT1orE1controllerport.Thelogicalinterfacescreatedcanhave
differentencapsulationtypes
–PPP,FrameRelay,etc.Foreachchannelgroup(afractionofaT1/
E1/ISDN‐PRIline),thefollowingvaluesmust beset:
1. Thechannelgroupmustbeidentifiedbyachannelgroupnumber.
2. OneormoretimeslotsoftheT1/E1/ISDN‐PRIlinemustbeassignedtoaparticularchannel
group.
3. The
basespeedincrementforthesinglechannelcanbespecifiedinkilobitspersecond.
Syntax
channel-group number timeslots range [speed {56 | 64}]
133
0to133feet(cablelengthforshorthaulpulseshaping).
266
134to266feet(cablelengthforshorthaulpulseshaping).
399
267to399feet(cablelengthforshorthaulpulseshaping).
533
400to533feet(cablelengthforshorthaulpulseshaping).
655
534to655feet(cablelengthforshorthaulpulseshaping).
number
Channel‐groupnumber,rangingfrom0to23forT1and0to30forE1datalines.