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| ISDN U-BUS Input/Output Transformer TEW4840 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 mA line current. High insulation between line and equipment side. Certified to: EN60950 & EN41003 MECHANICAL 1 DEVICE 6 7 2 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 TEW4840 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 14.5 mH < 55 H < 187 pF < 3.0 < 3.0 1 : 1.6 > 60 dB > 55 dB 50 mA 4000 V rms short (6-7) Issue; D 100 mA without damage Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3 Tel : (613) 226 1626 Fax : (613) 226 7124 4-10 |
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