Corporation Personal Computer User Manual
Pegasus Fast Start Guide 7460572 Rev A Page 8 of 12
JUMPERFUNCTIONS
COM2RS‐232/422/485SELECTION(JRS1)
UsingjumperJRS1,theCOM2portcanbeconfiguredtooperateinRS‐232,RS‐422orRS‐485mode.
Mode Pins1‐2Jumper Pins3‐4Jumper Pins5‐6Jumper
RS‐232(Default) ON OFF OFF
RS‐422 OFF ON OFF
RS‐485 OFF OFF ON
COM2RS‐422/485FEATURECONFIGURATION(JTM1)
UsingjumperJTM1,theCOM2portRS‐422/485featurescanbeconfigured.
Thedefaultconfigurationiswithnojumpersinstalled.
Feature JumperSetting
RS‐422/485TX+Pull‐up Pins1
&
2
RS‐422/485TX‐ Pull‐down Pins3&4
RS‐422/485Terminal120ohm Pins5&6
RS‐422Terminal120ohm Pins7&8
RS‐422RX+Pull‐up Pins9&10
RS‐422RXPull‐down Pins11&12
CMOSSETUP(JBAT1)
UsingjumperJBAT1,theCMOScanberetainedorcleared.
ImmediatelyafterclearingCMOSthedefaultBIOSshouldbeloaded.
Mode JumperSetting
KeepCMOS (Default) Pins1&2
ClearCMOS Pins2&3
LCDFEATURECONFIGURATION(J1)
UsingjumperJ1,theframerateandscandirectionoftheLCDdevicecanbeconfigured.
Feature JumperSetting
FrameRateLow(Default) Pins1&3on
FrameRateHigh Pins1
&
3 off
ScanDirectionLow(Default) Pins2
&
4on
ScanDirectionHigh Pins2
&
4off
LCDBACKLIGHTVOLTAGESELECT(JINV1)
UsingjumperJINV1,theinputpowervoltagefortheLCDbacklightcanbeselected.
Voltage JumperSetting
+5V(Default) Pins1&2
+12V Pins2&3