XE0002B 데이터 시트보기 (PDF) - Unspecified

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XE0002B

DAA with 2/4 Wire Hybrid

Unspecified 

Pin Descriptions

PIN NAME I/O

1

VDD ---

2

VCC ---

3

\RI

O

4 RCVR O

5

XMIT

I

6 XMFR I

7

T1

I

8

OH

I

9

GND ---

10

T2

I

17 RING ---

20

TIP

---

DESCRIPTION

-5 Volts.

+5 Volts

Ring Indicator, output, active LO, TTL. When low indicates the

modem is receiving a ring signal.

Analog signal output from the 2-4 wire convertor.

Analog signal input to the 2-4 wire convertor.

Analog input/output from the Surge and Protective Network to the

internal 2-4 wire convertor. Must be tied to pin 7, T1, to use the

internal 2-4 wire convertor.

Analog Signal input/output to the Surge and Protective network.

Off-Hook controls the hookswitch relay within the XE0002B. A high

on OH closes the internal relay and connects the equipment to the

telephone line.

Ground.

Analog Signal input/output to the Surge and Protective network.

Ring connection to the phone line (RJ11 pin4) from the internal DAA.

Tip connection to the phone line (RJ11 pin3) from the internal DAA.

Typical Connection Diagram

2/XECOM

XE0002B

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