T1/E1/CEPT/ISDN Interface Isolation Transformer PCA Part Number EPA2749 Schematic Electrical Specifications Test Specification Equipment Primary Inductance (pins 2-6) 1.2 mH Min. HP4277 Leakage Inductance Note 1 0.50 µH Max. HP4277 Interwinding Capacitance Note 2 40 pF Max Primary DCR 0.70 Ω Max. VP2941A Secondary DCR 1.20 Ω Max. VP2941A 1 2 --- Vdc I.R. @ Hipot (All windings) 3 HP4277 6 5 --- Meg Ω 1500 Vrms Package HD-100 5 3 --- dB Min. CMRR 6 PCA EPA2749 D.C. .350 Max. 2° 1° Crosstalk 4 --- dB Min. .500 Max. Impedance --- Ω Max. Polarity 2°, 1° Turns Ratio .250 Max. .130 #24 AWG T.C. Wire (6 plcs) .400 1 : 2 CT ± 5 % .100 .200 *Insulation Rating ----- Notes : *Oper.Ambient Temp. ----1) Between Pri/Sec windings. 2) Pins #2-6 w/#1-3-5 shorted. *Unless otherwise specified, all tests to be conducted @ 25°C and RH of 93% Max. DSA2749 Rev. - 9/10/96 Unless Otherwise Noted Dimensions in Inches Tolerances: Fractional = ± 1/32 .XX = ± .030 .XXX = ± .010 QAF-CSO5a Rev. B 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 ELECTRONICS INC. 9/4/96 TEL: (818) 892-0761 FAX: (818) 894-5791 WEB: http://www.pcainc. com