4-41

C39

I25

UPC

CDB

C28

U2S

U5S

CSS

BR0

BR1

STB

EX3

C3C

I2C

CST

GRB

ICD

UEE

UE1

FRQ

PT0

PT1

TR0

TR1

LED

SDI

XTAL 1

XTAL 2

VCC

EA

IOM

RST

BPR

TxD

RxD

RTS

CTS

GND

T2OUT

R2IN

T1OUT

R1IN

T2IN

R2OUT

T1IN

R1OUT

C1+

C1-

C2+

C2-

V+

V-

VCC

GND

TxD

RxD

RTS

CTS

+5 V

0 V

+5 V

C4

15

6

16

2

13

14

8

7

12

11

9

10

1

3

4

5

C1

C2

MAX232

LT1081 or

LT1181

SERIAL LEVEL

CONVERTER

+5 V

+5 V

47 K

Ω +5 V

SDI

10 K

Ω

2N5088

150

Ω

8 x 10 K

Ω

+5 V

+5 V

500

Ω

10

Ω

10 K

Ω

10 µF

1N4148

1N4148

+5 V

PIEZO

BEEPER

0.047 µF

10

mH

HBCR-161X

NOTES:

1. USE THE CORRECT CAPACITOR FOR

EITHER A CRYSTAL OR A CERAMIC

RESONATOR. SEE USERS MANUAL, PAGE 2-16.

2. SEE THE PIN DIAGRAMS FOR THE PINOUT

OF THE DECODE IC. PIN NUMBERS VARY

WITH PACKAGE.

3. VOLUME OF THE BEEPER CIRCUIT IS

ADJUSTABLE BY VARYING THE VALUE

OF THE 500

Ω POT.

4. THE EIGHT PULL UP RESISTORS SHOWN

IN THE SCHEMATIC ARE ONLY NEEDED

IF A DIP SWITCH IS USED. IF THE PINS

ARE STRAPPED DIRECTLY TO GROUND

OR VCC, THE RESISTORS ARE NOT NEEDED.

5. THE LOGIC LEVELS OF THE SDI SCANNER

INPUT IS AS FOLLOWS: BLACK = HIGH,

WHITE = LOW.

2N2907

C3

Table 6. Summary of Commands – HBCR-1610 Series

Feature

Description

Scanner Enable

When enabled, scans from a wand or a slot reader are decoded; otherwise, they

are ignored.

Hard Reset

Resets the IC as though it were just powered up.

Self Test Failure

An error message is transmitted over the serial port at 9600 baud at power up if the

Message

IC self test fails.

Status Request

Returns the version number of the software.

Sound Tone

Causes the IC to sound a tone of the selected pitch for 120 milliseconds.

Stand Alone Decoder

(Serial Mode)