QUANTUM
™
LX CONDENSER/VESSEL CONTROL PANEL
MAINTENANCE
090.560-M (MAY 2016)
Page 25
Q4 BOARD SETTINGS
Processor Board Jumpers
LK1
in
out*
2 second Watchdog timer timeout
8 second Watchdog timer timeout
LK2
in*
out
Watchdog timer Enabled
Watchdog timer Disabled
LK3
A
B *
+5V Backlight Voltage (not used)
+12V Backlight Voltage (all displays)
LK4
A
B *
+5V Supply (Samsung, NEC, Sharp)
+3.3V Supply (LG Philips & Sharp LED Display)
LK5
A
B *
COM4 IRQ3
COM4 IRQ10
LK6
A
B *
COM3 IRQ4
COM3 IRQ11
LK7
A *
B
Battery Backup Enabled
Battery Backup Disabled (CMOS Cleared)
LK8
in*
out
RS-485 Receiver Enabled
RS-485 Receiver Disabled
LK9
in*
out
RS-485 Terminated
RS-485 Not Terminated
LK10
in
out*
RS-422 Terminated
RS-422 Not Terminated
LK11
in*
out
Bit 1 of 259H “Logic 1” User Application Link
Bit 1 of 259H “Logic 0” User Application Link
LK12
in*
out
Bit 2 of 259H “Logic 1” User Application Link
Bit 2 of 259H “Logic 0” User Application Link
* Standard Setting
Communications Board Jumpers
Com-1 (TB1)
LK2
in
out*
Terminate COM1
No termination
RS-422/485
LK7
in
out*
Pull down COM1
No pull down
RS-422/485 (Rx-/Tx-)
LK8
in
out*
Pull up COM1
No pull up
RS-422/485 (Rx-/Tx+)
LK9
in
out*
Pull down COM1
No pull down
RS-422 (Tx-)
LK10
in
out*
Pull up COM1
No pull up
RS-422 (Tx+)
LK16
A
B*
COM1 RS-422 (TB1)
COM1 RS-485 (TB1)
* Standard Setting
Com-2 (TB2 - TB3)
LK1 in
out*
Terminate COM2
No termination
RS-422/485
LK3 in
out*
Pull down COM2
No pull down
RS-422/485 (Rx-/Tx-)
LK4 in
out*
Pull up COM2
No pull up
RS-422/485 (Rx-/Tx+)
LK5 in
out*
Pull down COM2
No pull down
RS-422 (Tx-)
LK6 in
out*
Pull up COM2
No pull up
RS-422 (Tx+)
LK11 A
B*
Select RS-232 for COM2 (TB2)
Select RS-422/RS-485 for COM2 (TB3)
LK17 A
B*
COM2 RS-422 (TB2)
COM2 RS-485 (TB2)
* Standard Setting