XE014JS Просмотр технического описания (PDF) - Xecom

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XE014JS

PLCC DAA for Shared-Line Applications

Xecom 

Typical Connection Diagram

RJ11

C1

RV1

FB1

FB2

C2

1

2 Ring

3 Tip

4

5

6

7

8 /Hint

9 /CD

XE014JS

RI(+) 18

RI(-) 17

OH(+) 16

T1 15

T2 14

13

OH(-) 12

VCC 11

Gnd 10

+5V

20K

RC224ATF

RingD

340 ohms

TXA1

Rin

TXA2

+5V

-OH

InterruptA

InterruptB

Notes on Application Schematic:

C1 and C2 are 47 picofarad 1500 Volt Capacitors provided for EMI filtering. High voltage capacitors are required

to maintain the isolation barrier between the telephone line and the host equipment.

FB1 and FB2 are Ferrite beads. They provide EMI filtering. They should present an impedance of at least 100

ohms at 100 MHz.

RV1 protects the XE014JS from voltage surges generated by near lightning strikes. Xecom recommends a Teccor

Electronics P3100BA70 Sidactor. This device has a typical breakover voltage of 300 volts.

The 340 ohm resistor between T1 and TXA1 provides the optimal resistance for the XE014JS to match the

impedance of a standard 600 ohm line.

XECOM

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XE014JS

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