TME-CLR-ECO-R0V6.docx
Rev 0.6
Page 22 of 34
RS485-Termination Jumpers (X18)
Connector type:
IDC4 pin header 2.0 mm
Matching connector:
2.0 mm jumper
Use 2 mm jumpers to terminate lines correctly.
There are two jumpers COM1 and COM2, respectively.
The RS485 termination jumpers are located at the top of the printed circuit board, see chapter 1.4
At default setting, all jumpers are off.
When the jumper is set, the differential pairs
are terminated with 120
Ω
resistors.
(e.g. RX+ and RX-, on the right picture)
Additionally, positive/negative receive lines are pulled up/down with 1k
Ω
to
5V/GND in order to protect the transceivers of the Cool LiteRunner-ECO
from over voltages.
It is recommended to protect the ports of the external device in the same
way!
Caution: Termination Resistors should not be used in RS232 Mode!
Otherwise, the serial ports will not work.
3.9
Parallel Port (X20)
The parallel port is located on an IDC26 header. An adapter cable with a standard DSUB-25 female connector is
available.
The parallel port is programmable in BIOS.
Entering
Integrated Peripherals -> SuperIO Device->Onboard Parallel Port
, configuration of LPT is accessible.
LPT
Parameter
Possible Settings
Base
Address/
IRQ
Disabled, 0x378 / IRQ7, 0x278/IRQ5, 0x3BC/IRQ7
Mode
SPP, EPP, ECP, ECP+EPP, Normal
EPP Mode
EPP1.9,/ EPP1.7
DMA
Channel 1, Channel 3
Pin
Signal
Pin
Signal
1
TX1-
2
TX1+
3
RX1-
4
RX1+
5
TX2-
6
TX2+
7
RX2-
8
RX2+
