CHAPTER 9
• CLICK 110
81
Detection
1
2
3
4
Fault
Menu
PWR MF
TD
RD
1
2
3
4
Figure 9.3 – Click 110 LEDs
The detection indicator LEDs consist of four red LEDs numbered 1–4, each representing
a channel (see Figure 9.3). An illuminated LED indicates the presence of a vehicle. These
indicators are dedicated to detection and have no other display purposes.
The fault indicator LEDs consist of four dual-color (green / yellow) LEDs numbered 1–4,
each representing the channel with the corresponding number (see Figure 9.3).
˽
Illuminated green LED –
Indicates a no-fault condition.
˽
Illuminated yellow LED –
Indicates a fault condition which has existed for less than
one minute.
˽
Extinguished LED –
Indicates a fault condition which has existed for more than one
minute.
The menu indicator LEDs include two rows of LEDs (see Figure 9.3). The lower row con-
tains Level 1 indicators, while the upper row contains Level 2 indicators. Each level consists
of four LEDs numbered 1–4 (left to right). Level 1 LEDs display which menu is active. These
Level 1 LEDs are dual-purpose, each indicating both menu selection as well as a normal
operation state when not in Menu mode. The normal operation state functions include:
˽
Red (PWR) –
Indicates the presence of power to the device.
˽
Blue (MF) –
Illuminates when the master fault output is in the no-fault condition. The
LED is extinguished in the fault condition.
˽
Green (TD) –
Indicates serial communication transmit data (from the Click 110) on
either RS-485 bus 1 or RS-485 bus 2.
˽
Yellow (RD) –
Indicates serial communication receive data (to the Click 110) on either
RS-485 bus 1 or RS-485 bus 2.
Level 2 LEDs display configuration options. All level 2 LEDs are red. These LEDs are dedi-
cated to menu operation, and are extinguished when the menu is not active.
Summary of Contents for Click 100
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