ISDN S Interface Transformer 1CT : 2.5CT* Turns Ratio ( + 2% ) PARAMETER MIN. MAX. 22 Open Circuit Inductance SCHEMATIC DIAGRAM UNITS mHy Leakage Inductance 40 µHy Interwinding Capacitance (CW/W) 100 pF Distributed Capacitance (CD) 110 pF 1 8 2 7 Pri Sec Primary DC Resistance 2.13 2.88 ohms 3 6 Secondary DC Resistance 4.93 6.67 ohms 4 5 Isolation (HI-POT) 2.0K VRMS TEST CONDITIONS: Oscillation Voltage = 700mV Oscillation Frequency = 10.0 KHz Inductance measured on Primary winding. Pins 1 - 4 (short 2 & 3). *Short Pins 2 & 3 and 6 + 7 MEETS THE PULSE WAVEFORM TEMPLATE OF CCITT I.430. Flammability: Materials used in the production of these units are UL94-VO and meet requirements of IEC 695-2-2 needle flame test. Primary is Line Side Unbalanced current at TE: ∆ Idc = 1 mA max. Longitudinal Conversion Loss - 10KHz to 300 KHz: 60dB min. PHYSICAL DIMENSIONS inches (mm) .560 (14.22) MAX. .560 (14.22) MAX. .360 (9.14) .400 (10.16) MAX. .020 (0.51) TYP. .100 (2.54) TYP. .010 (0.25) TYP. .110 (2.79) TYP. .740 (18.80) .710 (18.03) RHOMBUS P/N: T-13404 CUST P/N: DATE: 12/09/98 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