TEW4855

www.DataSheet4U.com ISDN U-BUS Input/Output Transformer TEW4855 TEW4855 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. TEW4855 meets the electrical specifications of ANSI TI.6011988 and is approved for the Mitel MT8910 DSLIC device. Exceeds the requirements of: EN60950 and EN41003 Applications: High performance 2B1Q line code. Up to 50 mA line current. High insulation between line and equipment side. MECHANICAL 1 6 DEVICE 2 LINE 7 3 4 DOT AT PIN #1 DIMENSIONS, Inches (mm) P/N TEW4855 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) TEW4855 .chp ELECTRICAL Line Impedance Inductance Leakage Inductance Distributed Capacitance Winding Resistance Turns Ratio Longitudinal Balance DC Capability (Line Side) Dielectric Strength 135 Ω 11.0 mH < 75 µH < 500 pF < 3.3 Ω < 3.0 Ω 1 : 1.3 > 60 dB > 55 dB 50 mA 4000 V rms 97/08/25 (1-4) (6-7) (1-2)+(3-4) (1-2)+(3-4) (6-7) (6-7) : (1-2)+(3-4) 1 - 4 KHz 4 - 160 KHz short (6-7) Issue; E 100 mA without damage Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3 Tel : (613) 226-1626 Fax : (613) 226-7124 4-11 ...