T-1076

Modem Coupling Transformer Turns Ratio ( + 3 % ) PARAMETER MIN. (1) 1 :1 TYP. MAX. UNITS Schematic Diagram Primary Inductance Pins 1-2. 12 97.2 108 1250 -0.25 20 +0.25 108 120 118.8 132 H PRIMARY SECONDARY Primary DC Resistance Pins 1-2 ohms ohms VAC dB 1 4 Secondary DC Resistance Pins 4-3 Isolation (Hi-Pot) Frequency Response 200 Hz to 4 KHz Return Loss 300 Hz to 3000 Hz Longitudinal Balance: 200 to 1000 Hz 1000 to 4000 Hz Insertion Loss Total Harmonic Distortion at 600 Hz, -10 dBm 2 dB 3 60 60 1.75 2.0 2.25 88.1 dB dB dB dB Physical Dimensions inches (mm) .750 (19.05) 1.05 (26.67) MAX. 3 2 1.03 (26.16) MAX. 2 3 Bottom View .450 (11.4) 1 4 1 4 .550 (14.0) Freq 300 Hz 600 Hz -10dBm 0 dBm +4.7 dBm -83 dB -86 dB -81 dB -85 dB -77 dB -84 dB RHOMBUS P/N: T-1076 CUST P/N: DATE: 05/19/98 NAME: SHEET: 1 of 1 Rhombus Industries Inc. Transformers & Magnetic Products 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971 www.rhombus-ind.com