ISDN U-BUS/DNIC Input/Output Transformer TEW5413 is designed to interface with Mitel MT8972 and MT8971B/72B DNIC devices. TEW5413 has the following features. • Low profile • Epoxy encapsulated • Up to 15 mA unbalanced dc line current. TEW5413 Applications: • Digital subscriber lines. • High speed data transmission over twisted pair. • Digital PABX line cards and telephone sets. MECHANICAL 2 1 5 6 3 Device Line 4 ELECTRICAL Turns ratio (1-6):(2-5):(3-4) 4:1:1 DCR (1-6) (2-5) (3-4) 6.1Ω 2.1 Ω 2.1 Ω Inductance (1-6) > 30 mH Leakage Inductance (1-6) < 70 µH DC capability,line side (2-4) 15 mA ISSUE: A 94/12/14 TEW5413.chp WHITE DOT AT PIN 1 Dielectric Strength Filtran Limited 1500 V rms 229 Colonnade Road, Nepean, Ontario, Canada, K2E 7K3, Tel: (613) 226-1626, Fax: (613) 226-7124 4-20