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:16-13 ;12-9
(3) (4)
UL 1459 Recognized
R
1:2 & 1:2 SCHEMATIC DIAGRAM
MAX. UNITS
MIN. 22
PRI
mHy
SEC 16 15 14 13 12 11 10 9
1 2 3
4
15 15
µHy µHy
100 100
pF pF
80 80 1.95 3.40 2000 2.64 4.60
pF pF ohms ohms VRMS
5 6 7
8
Isolation (HI-POT)
MEETS THE PULSE WAVEFORM TEMPLATE OF CCITT I.430.
OPrimary is Line Side OUnbalanced current at TE: ∆ Idc = 1 mAmax. OLongitudinal Conversion Loss - 10KHz
to 300 KHz: 60dB min.
Package Dimensions in Inches (mm)
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
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-13503 CUST P/N: DATE: 3/24/94 NAME: SHEET: 1 OF 1
R hombus 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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