ISDN S Interface Common Mode Choke Turns Ratio ( + 1% ) 1:1:1:1 SCHEMATIC DIAGRAM PARAMETER Open Circuit Inductance MIN. MAX. 4.0 UNITS mHy Leakage Inductance 1 µHy Interwinding Capacitance (CW/W) 60 pF DC Resistance (any winding) 1.2 ohms Impedance @150 KHz 3.3 KΩ Impedance @300 KHz 6.0 KΩ Impedance @500 KHz 8.0 KΩ Impedance @1000 KHz 11.0 KΩ Isolation (HI-POT) 1.0K VRMS Flammability: Materials used in the production of these units are UL94-VO and meet requirements of IEC 695-2-2 needle flame test. TEST CONDITIONS: Oscillation Voltage = 700mV Oscillation Frequency = 10.0 KHz Inductance measured on 1 winding. PHYSICAL DIMENSIONS inches (mm) RHOMBUS P/N: F-1421 CUST P/N: DATE: 11/1/96 Rhombus Industries Inc. Transformers & Magnetic Products www.rhombus-ind.com NAME: SHEET: 1 OF 1 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Phone: (714) 898-0960 FAX: (714) 896-0971