101019
OPERATIONS MANUAL PPM-LX800-G
6
Four independent, asynchronous serial channels are on-board. Interface is provided
at connector
J11
, which is an 80-pin high-density connector. WinSystems offers the
to simplify the connection. Configuration options for RS-232,
RS-422 and RS-485 are listed on the following page.
All serial channels are configured as Data Terminal Equipment (DTE). Both the send
and receive registers of each channel have a 16-byte FIFO. All serial ports have
16C550-compatible UARTs.
Independent control of transmit, receive, line status and data set interrupts are on all
channels. Each channel is setup to provide internal diagnostics such as loopback and
echo mode on the data stream. An independent, software programmable baud rate
generator is selectable from 50 through 115.2 kbps. Individual modem handshake
control signals are supported for all channels.
RS-232 interface levels are supported on all four serial ports. The RS-232 drivers
have a charge pump to generate the plus and minus voltages so that the PPM-LX800-
G only re5V to operate.
All COM ports support RS-232 and can be enabled in the BIOS. COM1 and COM2
also have RS-422/RS-485 support. RS-422/485 provides separate balanced transmit
and receive signal pairs. For RS-485 multidrop lines, one signal pair can be used for
“party line” network structures.
Serial Interface
Optionally, a USB FLASH drive can be connected in addition to, or instead of the
CompactFlash device. Legacy USB operation is supported by the system BIOS.
CompactFlash
The PPM-LX800-G supports solid state CompactFlash storage devices for
applications where the environment is too harsh for mechanical hard disks or
floppy drives.
NOTE:
The CompactFlash is an IDE device. Use of a CompactFlash device
therefore reduces the number of available hard disks to one.
The CompactFlash socket at
J3
supports modules with TrueIDE support.
WinSystems offers industrial grade CompactFlash modules that provide high
performance and extended temperature operation (-40ºC to +85ºC). An IDE
activity LED is present at
D14
.
When using a CompactFlash device, Master/Slave selection is made using jumper
field
J1
.
7 5 3 1
o o o o
o o o o
8 6 4 2
J1
CompactFlash Master
1-2
CompactFlash Slave (default)
1 2