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Functions of JP3 and DSW1
JP3:
Use this jumper to make a TM printer reset using RTS or DTR effective.
Use this DIP switch to select the default value of the country mode of the MSR. And also use the
DSW1:
switch when the keyboard cannot be used due to a setting error.
The functions of the three jumpers and the DIP switch are shown below.
JP3 settings (TM reset enable/disable setting for RTS and DTR)
JP3
1-2
2-3 (default)
DSW1 settings (DIP switch settings for keyboard controller)
SW
4 (default: OFF)
SW1
SW2
OFF
OFF
ON
OFF
OFF
ON
ON
ON
OFF
OFF
Up = Off; Down = On
Start-up mode
By switching to the enforced boot mode, it is possible to start up the system using the default
settings. This mode is designed for instances when start-up is impossible because of
overwriting of firmware and system variables. The enforced boot can be performed only
from an external keyboard. The MSR, 28-key keypad, and similar devices cannot be used.
Country setting
The country setting amends the default settings (such as MSR readers, K/B settings, and
28-key and 84-key default settings) when the settings are initialized and during an enforced
boot start-up.
1-16 IR-320 System Overview
POS board
1
3
JP3
Dedicated TM reset
Reset enabled for RTS and DTR
Reset disabled for RTS and DTR (reset only with RSTDRV)
Description
Start-up mode (OFF: normal mode; ON: system boot)
SW3
Country
OFF
US (Default)
OFF
Japan
OFF
France
OFF
German
ON
Spain
4
1
ON
DSW1
Rev. C
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