3. Hardware Description
18
PC-686BX(NLX)-LV, PC-686BX(NLX)-LVV
RS-422 / RS-485 Specifications
- Transmission system: Half or full duplex serial transfer complying
with RS-422 or RS-485
- Baud rate: 19200 to 50 bps (Selectable)
- Signal transmission distance: 1.2km max.
Note!
The mouse and keyboard can be plugged into either PS/2 connector.
However, the power must be turned off before connecting or
disconnecting the keyboard or mouse.
The keyboard controller includes code for old-style keyboard and mouse control
functions and also supports password protection of power-on and reset. The power-
on and reset password is specified using the BIOS setup program.
The keyboard controller also supports the <Ctrl><Alt><Del> hotkey sequence and
software reset. This hotkey sequence jumps to the start of the BIOS code and
executes the power-on self test (POST) function to reset the computer’s software.
Infra-Red Support
The front panel I/O connector includes 6 pins that support a Hewlett Packard HSDL-
1000 compatible infra-red (IR) transceiver.
Serial port B can be assigned to the connected IR device using the setup program. (In
this case, the serial port B connector can no longer be used.) IR connections can be
used for file transfer with mobile devices such as laptops, PDAs, and printers.
The Infra-Red Data Transfer Standards Association (IrDA) specifications support
115Kbit/sec data transfer at a range of 1m.
Consumer Infra-Red Support
The front panel I/O connector includes a pin that supports a consumer infra-red device
(remote control). This pin supports reception only with data transfer rates up to
685.57Kbit/sec.
Consumer infra-red devices can be used to control telephone or multimedia operation
such as changing the volume or CD track. For the computer to support consumer
infra-red devices both a software interface and hardware interface are required.
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