14 ir. header (j2), 15 ext.batt (cn6), 16 battery jumper (jp1) – Acrosser AR-B1550 User Manual

Page 21: 17 watchdog trigger (j1)-reversed, 18 com1, com2 (cn3, cn4)

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AR-B1550 User’s Guide

Parallel Port Pin Assignments

3.2.14 IR. Header (J2)

The Infra-red Header pins assignments are as follow:

1-VCC

2-NOT USED

3-IRRX

4-GND

5-IRTX

3.2.15 Ext.Batt (CN6)

CN6

1-EXBAT

2-GND

3.2.16 Battery Jumper (JP1)

JP1

1-EXBAT

2-VCC

3-INTVBAT

1-2 2-3

External Battery

On-Board Battery

JP1: Battery Setting

3.2.17 Watchdog Trigger (J1)-Reversed

1-WDTO

2-GND

3.2.18 COM1, COM2 (CN3, CN4)

1- DCD

2- DSR

3- RX

4- RTS

5- TX

6- CTS

7- DTR

8- RI

9- GND

COM

PIN Signal PIN Signal

-Strobe

-Auto Form Feed

2 Data

0 15 -Error

3 Data

1 16

-Initialize

Data 2

-Printer Select In

5 Data

3 18 Ground

6 Data

4 19 Ground

7 Data

5 20 Ground

8 Data

6 21 Ground

9 Data

7 22 Ground

10 -Acknowledge 23

Ground

11 Busy 24

Ground

12 Paper 25 Ground
13

Printer Select

Not Used