TEW4840
TEW4840 is ISDN U-BUS Input/Output Transformer manufactured by Filtran.
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ISDN
U-BUS Input/Output Transformer
TEW4840 is designed to interface with the subscribers premises (NT) and the 2- wire line side of the Central Office Equipment (LT) in the ISDN Network. TEW4840 meets the electrical specifications of ANSI TI.6011988 and is approved for the SIEMENS PEB2091 (V.C1) device.
Applications:
- -
- High performance 2B1Q line code. Up to 50 m A line current. High insulation between line and equipment side.
Certified to: EN60950 & EN41003
MECHANICAL
DEVICE
6 7
LINE
3 4
DOT AT PIN #1
DIMENSIONS, Inches (mm)
P/N TEW4840 L W H A B C S 0.025 (0.64)
0.87 0.83 0.63 0.60 0.20 0.12 (22.0) (21.0) (16.0)(15.3) (5.1) (3.0)
ELECTRICAL
93/01/29
Line Impedance Inductance Leakage Inductance Distributed Capacitance Winding Resistance Turns Ratio Longitudinal Balance DC Capability (Line Side) Dielectric Strength
(1-2)+(3-4) (1-2)+(3-4) (1-2)+(3-4) (1-2)+(3-4) (6-7) (6-7) : (1-2)+(3-4) 1
- 4 KHz 4
- 160 KHz
135 Ω 14.5 m H < 55 µH < 187 p F < 3.0 Ω < 3.0 Ω 1 : 1.6 > 60 d B > 55 d B 50 m A 4000 V rms short (6-7)
Issue; D
100 m A without damage
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3 Tel : (613) 226 1626 Fax : (613) 226...