規格
電話阻抗
POSTPORTimpedance:Zr=130Ω
Modem阻抗
Modemimpedance:32kHzto2208KHz100Ω
插入損耗
ISDNInsertionloss:1.0KHZ-40KHZ-0.8DbMax
1.0KHZ-60KHZ-1.2DbMax
40KHZ-80KHZ-2.0DbMax
回程損耗
Returnloss:1.0KHZ-40KHZ>16DbMax
1.0KHZ-60KHZ>16DbMax
40KHZ-80KHZ>14DbMax
60KHZ-80KHZ>14DbMax
XDSLAttenuation:138KHZ-150KHZ>55
150KHZ-1104KHZ>65
1104KHZ-12MHZ>55
群延時
ISDNDelaydistortion:1.0KHZ-80KHZ <20usec
Potsdelaydistortion:200KHZ-4KHZ<200usec
直流電阻
DCresistance:<12.5Ω
絕緣電阻(線對線)
Isolationresistance,branch-branch:100VDC;term=∞Ω >5MΩ