T1/CEPT/ISDN-PRI Pulse Transformer Reinforced Insulation Per EN 41003/EN 60950 Turns Ratio* ( + 5% ) 1CT:1.41CT Parameter Min. Open Circuit Inductance* 1.2 Max. Units mH Oscillation Voltage = 20mV Oscillation Frequency = 100.0 KHz Schematic Diagram 0.80 µH 20 pF Primary DC Resistance 0.6 ohms Secondary DC Resistance 0.8 ohms Leakage Inductance Oscillation Level = 20mV Oscillation Frequency = 100.0 KHz Interwinding Capacitance (CW/W) Oscillation Frequency = 100.0 KHz Isolation (HI-POT) 3000 V RMS *Turns ratio is Primary to Secondary. Primary Pins 10-6 center tap pin 5 to Secondary pins 1-5 center tap pin 3 1 Tested on Primary Pins 10-6 Flammability: Materials used in the production of these units are UL94-VO and meet requirements of IEC 6952-2 needle flame test. Physical Dimensions inches (mm) RHOMBUS P/N: T-13637 CUST P/N: DATE: 07/02/98 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