FRICK
®
QUANTUM™ LX COMPRESSOR CONTROL PANEL S90-020 M
MAINTENANCE Page 17
DIGITAL BOARD SETTINGS
COMMUNICATIONS SETTINGS
The following table is to be used when configuring the Quantum™ for external communications.
J5
in
out*
120 ohm long communications line termination.
No termination.
J7
in
out*
RS-422/485 transmit pull-up for long communications lines.
No pull-up.
J8
in
out*
RS-422 transmit pull-up for long communications lines.
No pull-up.
J9
in
out*
RS-422/485 receive pull-down for long communications lines.
No pull-down.
J10
in
out*
RS-422 receive pull-down for long communications lines.
No pull-down.
* = standard setting
DIPSWITCH SETTINGS
The following table is to be used to set the digital board addresses. If there is only one board installed, it should be set as
board #1, if there are two boards they each need to be set according to the wiring diagrams
SW1 SW2 SW3 SW4 SW5 SW6
Board #1 on on on on off on
Board #2 off on on on off on
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