ISDN TEW5039 U-BUS/DNIC Input/Output Transformer TEW5039 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. Applications: * Up to 50 mA line current. * TEW5039 meets Designed to meetthe EN60950 requirements of BS6301 and EN41003 for reinforcedfor reinforced insulation, insulation between line and clearance and creepage device side distances between the line and the device side. * TEW5039-1 meets the requirements for pollution class 2. TEW5039 meets the electrical requirements for the Mitel MT8972 & MT8971B/72B devices. Certified to EN60950 and EN41003. MECHANICAL 1 6 2 7 3 DEVICE LINE 4 DOT AT PIN #1 DIMENSIONS, Inches (mm) (nominal) P/N Issue; B 94/12/14 TEW5039.chp TEW5039 ELECTRICAL Line Impedance Inductance Leakage Inductance Winding Resistance (6-7) (6-7) (1-2) & (3-4) (6-7) Turns Ratio (6-7) : (1-2) : (3-4) DC Capability (Line Side) (1-4) Dielectric Strength Filtran Limited 2007/12/17 L W H A C S 0.87 0.83 0.63 0.60 0.20 0.12 0.025 (22.0) (21.0) (16.0)(15.3) (5.1) (3.0) (0.64) TEW5039 TEW5039-1 135 > 30mH < 95 H 1.5 ea 5.5 4:1:1 50 mA 4000 V rms 135 > 30 mH < 95 H 3.4 ea 6.7 4:1:1 50 mA 4000V rms 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3 Tel : (613) 226-1626 Fax : (613) 226-7124 SUBJECT TO CHANGE WITHOUT NOTICE B 4-15