Specifications

Step2 ForT1cabling,attachthenetworkendofyourCT1cablestoyourexternal
network.
Step3 ForE1cabling,attachthenetworkendofyourCE1cablestoyournetwork
termination(NT1)device.
Warning
HazardousnetworkvoltagesarepresentinWANportsregardlessofwhether
powertotheunitisOFForON.Toavoidelectricshock,usecautionwhen
workingnearWANports.Whendetachingcables,detachtheendaway
fromtheunitfirst.
Figure15CT1andCE1TrunkCardRJ45CableConnections
Warning
Theportslabeled"NetworkClock,""10BaseT,""DialShelfInterconnect,"
"Console,"and"Alarms"aresafetyextralowvoltage(SELV)circuits.SELV
circuitsshouldonlybeconnectedtootherSELVcircuits.BecausetheE1/T1
circuitsaretreatedliketelephonenetworkvoltage,avoidconnectingtheSELV
circuittothetelephonenetworkvoltage(TNV)circuits.
ConfiguringCableLength
WhenyouconfigureyourCT1trunkcards,youmustincludethedistanceofthecable
connectedtothefeaturecard.Tospecifythisdistance,youmustusethecablelength
command.NocablelengthcommandisrequiredforCE1trunkcards.
Ifyouchangethecablelengthwheninstallingandcablinganewtrunkcard,youneed
tospecifycablelengthinyoursoftwareconfiguration.Thecablelengthcommandis
designedtorecognizetwobasicfixedsettings:
• CableLengthShort
• CableLengthLong
CableLengthShort
Thefollowingcablelengthshortconfigurationsdefinethelengthrange(infeet),
betweenyourNetworkAccessServer(NAS)andyourrepeater.Thecablelength
shortcommandincludesthefollowingsettings:
• 133feet(0133feet)
• 266feet(134266feet)
• 399feet(267399feet)
• 533feet(400533feet)
• 655feet(534655feet)
NoteAlthoughyoucanspecifyacablelengthfrom0to655feet,thehardwareonly
recognizesfixedconfigurationlengths.Forexample,ifyourcablelengthis50feet
betweenyourNASandyourrepeater,youshouldconfigureyourcablelengthusing
the133feetsetting.Ifyoulaterchangethecablelengthto200feet,youshould
reconfigureyourcablelengthusingthe266feetsetting.
CableLengthLong
Thefollowingcablelengthlongconfigurationsdefinethelengthrangeingainand
pulse,betweenyourNetworkAccessServer(NAS)andyourrepeater.The
cablelengthlongcommandincludesthefollowinggainandpulsearguments:
• gain26(26dbGain)