Modem Coupling Transformer Turns Ratio ( + 3 % ) Schematic Diagram 1:1 PARAMETER MIN. NOM. MAX. UNITS Impedance primary 600 Ω Impedance secondary 374 Ω D.C. Resistance Pri. 97.2 108 118 Ω D.C. Resistance Sec. 108 120 132 Ω Return Loss at 1kHz 30 60 dB Longitudinal Balance at 1kHz to 4 kHz 40 dB Total Harmonic Distortion 600, 10 dBm Frequency Response -76 1250 200 Hz to 4 kHz Insertion Loss at 1 kHz 4 2 3 dB Longitudinal Balance 60-1000 Hz Dielectric Test PRI-SEC 1 Compatible with 56 kb/s technologies dB VAC +0.25 dB Low distortion, specifically designed for use from V.32bis through V.34 Flat Frequency/phase response 2.0 +0.25 dB Physical Dimensions inches (mm) .450 (11.43) .880 (22.35) 3 4 2 2 1.03 (26.16) MAX. .450 (11.4) 3 Bottom View 1 1 4 .550 (14.0) RHOMBUS P/N: T-600 CUST P/N: DATE: 11/3/99 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