ISDN S-Interface Dual Transformer
Turns Ratio Pins 1-4:16-13 & 5-8:12-9
PARAMETER Open Circuit Inductance 1-4 (1) 5-8 (2) Leakage Inductance 1-4 (1) Short 16-13 (3) 5-8 (2) Short 12-9 (4) Interwinding Capacitance (CW/W) 1-4 (1) & 16-13 (3) 5-8 (2) & 12-9 (4) Distributed Parallel Capacitance 1-4 (1) 5-8 (2) Primary DC Resistance: 1-4 (1) ; 5-8 (2) Secondary DC Resistance: Secondary DC Resistance: Isolation (HI-POT) 16-13
(3)
UL 1459 Recognized
R
1:1.8 & 1:2.5 SCHEMATIC DIAGRAM
MAX. UNITS
MIN. 22
PRI
mHy
SEC 16 15 14 13 12 11 10 9
1 2 3
4
15 30
µHy µHy
100 100
pF pF
140 150 2.12 3.57 4.93 2000 2.87 4.83 6.67
pF pF ohms ohms ohms
5 6 7
8
12-9 (4)
VRMS
MEETS THE PULSE WAVEFORM TEMPLATE OF CCITT I.430. Primary is Line Side Unbalanced current at TE: ∆ Idc = 1 mA max. Longitudinal Conversion Loss - 10KHz to 300 KHz: 60dB min.
Flammability: Materials used in the production of these units are UL94-VO and meet requirements of IEC 695-2-2 needle flame test. Parts shipped in anti-static tubes. 18 pieces per tube Physical 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 P/N: T-10502 CUST P/N: DATE: 3/24/94 NAME: SHEET: 1 OF 1
Rhombus Industries Inc.
Transformers & Magnetic Products
www.rhombus-ind.com
15801 Chemical Lane, Huntington Beach, CA 92649-1595 Phone: (714) 898-0960 FAX: (714) 896-0971
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