Keypad And Ambient Light Sensor; 2.6.10 Rf Interference - Rice Lake LaserLight3 Series Technical Manual

LaserLight3 Remote Display
2.6.8 20 mA
The J11 connector (Section 2.7 on page
communications. See Figure 2-16
2.6.9

Keypad and Ambient Light Sensor

The keypad with integrated ambient light sensor connects to J16 on the CPU board. The keypad provides the functional buttons
that interface with LaserLight3 (see
The ambient light sensor adjusts the brightness of the display in relation to configured Bright parameters. For more information
about ambient light sensor parameters, see
NOTE: The LaserLight3 defaults to the Night setting if the sensor is faulty or absent.

2.6.10 RF Interference

A cylindrical EMI filter is pre-installed on LED power cables (J15 and J17) and two rectangular EMI filters are pre-installed on
the LED data cable (HUB75) to eliminate RF interference.
Power Cables with EMI Filter
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21) is intended to provide a connection point for the 20 mA current loop passive
for the pin assignments for the J11 connector.
Figure 2-16. CPU Board 20 mA Current Loop Connector (J11)
Section 3.2 on page 29).
Section 5.2.6 on page 63
Figure 2-17. EMI Filters Placement for RF Interference
Connector Pin Signal
J11 1
2
3
4
.
Data Cable with EMI Filters
RX+
RX-
TX+
TX-