Liquid Controls LCR Install - Manual (Page 17)

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After the LCR has been installed, check to make sure
that it will power up correctly. The back light on the LCR
display should go on when the truck’s ignition key is
turned to the “ON” or the “accessory” position. At this
point, you need to attach a compatible data terminal to
the LCR to initialize system values, set the clock, enter
ticket headers, calibrate the meter, etc. The user can
use a Liquid Controls Lap Pad, handheld computer, or
lap top computer.
Lap Pads and computers emulating a VT-100 terminal
must be connected to the RS-232 terminal port (J3
Terminal Block). The LCR must be configured for RS-
232 operation by proper positioning of the jumper on the
J10 terminal block, as shown on page 14.
Refer to the Liquid Controls LectroCount LCR Setup
Manual (Bulletin #500050) if you will be using a Lap Pad
or VT-100 compatible terminal to set up the LCR.
System Startup