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212/212X Installation & Technical
Main PCB Jumpers
Page 38
J2 – REMOTE INPUT SRC (SOURCE)
The Remote Input SRC jumper J7, when connected, allows the 212/212X
indicator to supply (source) 12-24VDC to a solid-state relay or other load
of 200 ohms or greater. The positive connection from the relays must be
connected to the remote input connector pins and the negative wire from
the relays to the GND/SHLD pin.
J3 – AUTO-ON JUMPER
The AUTO-ON jumper J3, when connected, will cause the indicator to
power on automatically whenever power is applied to the power input
connector. If power is lost momentarily and then reapplied, the indicator
will turn on without pressing the ON/OFF key.
J4 AND J5 – RS-232/USB PORT
These jumpers control whether COM3 is RS-232 and uses Serial I/O P14
(pins 7, 8, & 9) or USB and uses the USB-B header, P4 or USB-B port, P6.
J6 (+SEN) and J9 (-SEN) – Sense Jumpers
If the sense leads are NOT used, you must install plug-in jumpers at J6
and J9 adjacent to the terminal block. These jumpers attach the sense
leads to the excitation leads. If sense leads ARE used (as in motor truck
scales), these plug-in jumpers should be positioned on one plug-in pin
only or removed and stored for later use.
J8 – DLB (Dead Load Boost Jumper)
For very low dead loads (less than 10% of the combined load cell
capacity) connect the dead load boost jumper J8 on the printed circuit
board.
J7 – REMOTE OUTPUT SRC (Source)
The Remote Output SRC jumper J7, when connected, allows the
212/212X indicator to supply (source) VP (15VDC) or VCC (5vdc) to a
solid-state relay or other load of 200 ohms or greater. The positive
connection from the relays must be connected to the remote output
connector pins and the negative wire from the relays to the GND/SHLD
pin.
J10 – USB PWR
(Not Applicable)
8200-M639-O1 Rev D 09/14
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