TPW4670 Datasheet, PDF (1/1 Pages) Filtran LTD – ISDN U-BUS Input/Output Transformer

ISDN U-BUS
Input/Output Transformer
The TPW4670 transformer is de-
signed to interface with the sub-
scribers premises (NT) and the
2- wire line side of the Central
Office Equipment (LT) in the
ISDN Network.
TPW4670 meets the electrical
specifications of ANSI TI.601-
1988 and is approved for the
Siemens PEB2091 device.
TPW4670-1 meets the require-
ments of the Thomson SD5411
device
MECHANICAL
TPW4670
Dot at pin 1
ELECTRICAL
Line Impedance
Inductance
Leakage Inductance
Winding Capacitance
Turns Ratio
Longitudinal Balance
DC Capability (Line Side)
Dielectric Strength
(5-7)+(6-8)
(2-11)
(5-7)+(6-8)
(2-11) : (5-7)+(6-8)
1 - 4 KHz
4 - 160 KHz
TPW4670
135 Ω
14.5 mH
< 55 µH
< 80 pF
1 : 1.6
> 65 dB
> 58 dB
50mA
2000 V rms
TPW4670-1
135 Ω
14.5 mH
< 55 µH
< 80 pF
1 : 1.5
> 65 dB
> 58 dB
50 mA
2000 V rms.
Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3
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