Electrical Specifications at 25OC Parameter Impedance PRI. (Ω) 600 R Load SEC. (Ω) 348 Turns Ratio +1% 1:1 Insertion Loss max., ref. 1 kHz (dB) Return Loss min., 200 Hz to 4 kHz (dB) DC Resistance PRI. + 10% SEC. + 10% 3.25 (Ω) For V.34 Modem Applications 14 152 (Ω) Schematic Diagram 151 Direct Current in Pri. (DCI) maximum Longitudinal Balance min., 60 Hz to 1 kHz (dB) 60 Longitudinal Balance min., 1 kHz to 4 kHz. (dB) 60 Frequency Response 300 Hz to 4 kHz (dB) T.H.D. typ. 600 Hz, -10 dBm (dB) Isolation minimum (VRMS) 1 Audio Transformer none + 0.5 -83 PRI SEC 3750 3 Physical Dimensions inches (mm) 6 5 4 RHOMBUS P/N: T-803 CUST P/N: DATE: 7/15/96 Rhombus Industries Inc. Transformers & Magnetic Products NAME: SHEET: 1 of 1 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971 www.rhombus-ind.com