Product Specification
CPF104V
4.2.3. ISDN functionlity of splitter : 2
Splitter parameters
Electrical requirements
Range
Values
ISDN band(3dB bandwidth)
DC to 120KHz
Nominal impedance
Line impedance ZL
150 ohm / 135 ohm
CO impedance ZTc
150 ohm / 135 ohm
RT impedance ZTr
150 ohm / 135 ohm
Operation voltage ISDN
Current voice band
Loop current
For 4B3T/2B1Q Band
200mA
DC resistance
DC resistance
<=25 ohm
Isolation resistance tip/ring
>5 M ohm
ISDN band characteristic
Insertion loss
20KHz <f<120KHz
<1 dB
Delay distortion
0.1KHz <f<120KHz
<7 usec
Return loss
20KHz<f<120KHz
>14 dB
VDSL band characteristic
Stop band attenuation
800KHz<f<7.9MHz
>60 dB
Note: Zcomplex(1): 270Ω+(150nF//750Ω)
Zcomplex(2): 220Ω+(115nF//820Ω)
Zcomplex(3): 320Ω+(230nF//1050Ω)
4.2.4. DC characteristic :
All requirement of this specification can be met in the presence of all POTS loop currents
from 0mA to 100mA. This POTS splitter can pass POTS tip-to-ring dc voltages of 0V to
72V and ringing signals of 40V to 80Vrms at any frequency from22Hz to 28Hz with a DC
component in the range from 0V to 72V. The dc resistance from tip-to-ring at the line port
interface with the phone interface shorted, shall be less than or equal to 25 ohms. The DC
resistance from tip-to-ground and from ring-to-ground at the POTS interface with the U-R
interface open shall be greater than or equal to 5 Megohms. The ground point shall be
local building or green wire ground. As an objective , the dc resistance should exceed
10MΩ.
Data sheet subject to change without notice
RDPS-POTS364(R2)12/12/2002
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