ISDN S-Interface Dual Transformer Reinforced Insulation Per EN 41003/EN 60950 Turns Ratio Pins 1-4:16-13 & 5-8:12-9 1:2 & 1:1 SCHEMATIC DIAGRAM PARAMETER MIN. MAX. UNITS PRI Open Circuit Inductance 1-4 (1) 5-8 (2) 22 mHy Leakage Inductance 1-4 (1) Short 16-13 (3) 5-8 (2) Short 12-9 (4) 15 5 µHy µHy Interwinding Capacitance (CW/W) 1-4 (1) & 16-13 (3) 5-8 (2) & 12-9 (4) 100 100 pF pF Distributed Parallel Capacitance 1-4 (1) 5-8 (2) 80 40 pF pF Primary DC Resistance: 1-4 (1) ; 5-8 (2) 2.04 2.76 ohms (3) 3.40 4.60 ohms 2.04 2.76 ohms Secondary DC Resistance: 16-13 Secondary DC Resistance: 12-9 (4) Isolation (HI-POT) 4000 SEC 1 16 2 3 15 14 4 13 5 12 6 7 11 10 8 9 VRMS Flammability: Materials used in the production of these units are UL94-VO and meet requirements of IEC 695-2-2 needle flame test. MEETS THE PULSE WAVEFORM TEMPLATE OF CCITT I.430. OPrimary is Line Side OUnbalanced current at TE: ∆ Idc = 1 mAmax. OLongitudinal Conversion Loss - 10KHz to 300 KHz: 60dB min. Parts shipped in anti-static tubes. 18 pieces per tube Package Dimensions in Inches (mm) Oscillation Voltage = 700mV Oscillation Frequency = 10.0 KHz 1. Connect Pins 2 & 3 2. Connect Pins 6 & 7 3. Connect Pins 14 & 15 4. Connect Pins 10 & 11 Rhombus Industries Inc. Transformers & Magnetic Products RHOMBUS P/N: T-13550 CUST P/N: DATE: 3/24/94 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