ISDN U-BUS Input/Output Transformer TEW6055 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. TEW6055 Applications: TEW6055 meets the electrical specifications of ANSI TI.6011988 and the requirements for the Mitel MT8910 DSLIC device. • High performance 2B1Q line code. • Up to 50 mA line current. • High insulation between line and equipment side. MECHANICAL 0.625" MAX. 0.15" 0.025" SQ x 0.15" 0.20" (5 PL.) DOT AT PIN #1 0.85" MAX. 1 8 2 7 LINE DEVICE 3 6 4 5 0.51" 0.90" MAX Issue; A 96/12/16 6055.chp ELECTRICAL Line Impedance Turns Ratio Inductance Leakage Inductance DCR Interwind Cap. Dielectric Strength Filtran Limited Ω mH µH Ω Ω pF V rms (1 - 4) : (8 - 5) (1 - 4) (1 - 4) (1 - 4) (5 - 8) (1 - 4) to (8 - 5) 135 1.3 : 1 10.1 - 11.9 < 35 6.6 5.0 < 50 1500 @50 mA DC short 5 to 8 & 6-7 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3 Tel : (613) 226-1626 Fax : (613) 226-7124 4-25