User manual

Digital Monitor AMC-1DBx Series User Manual
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6.3.6 RS-485 TX LED
This RS-485 TX LED is illuminated for 1 second and turned off for 1 second every time
one or more MODBUS character is transmitted.
6.3.7 RS-485 RX LED
This RS-485 TX LED is illuminated for 1 second and turned off for 1 second every time
one or more MODBUS character is received.
6.3.8 ETHERNET ACTIVITY LED
This ETHERNET ACTIVITY LED is illuminated when the physical media has activity.
6.3.9 ETHERNET SPEED/COLLISION LED
This ETHERNET SPEED/COLLISION LED is two colors; Green and Red. The Green
LED is illuminated when speed of the physical media is 100Mb/s and not Green when
physical media is 10Mb/s. This LED will light Red when the physical media detects a
collision.
6.3.10 24V POWER SUPPLY LEDS
There are four 24V Power Supply LEDS, one for each MODBUS channel. Each channel
will be illuminated if the fuse associated with that channel is not open.
6.3.11 Self-Test LEDs (D1-D3)
These LEDs will light during various self-test operations and should not be stay
illuminated for more that 15 seconds. If these self-test LEDs remain illuminated a
hardware problem exists and this system fault must be reported to qualified technician
for repair.
6.4 External Buzzer and Annunciator Control
The external buzzer and annunciator are activated as a Pulse or Continuous defined by
the Option Audio Cadence configuration. The external buzzer and Annunciator will be
activated under the following:
• Alarm1 LED is illuminated with Option Audible Alarms; All Alarms & Fail
• Alarm2 LED is illuminated with Option Audible Alarms; All Alarms & Fail, All
Alarms (with Sensor Alarm Condition set for 2 thresholds.
• Alarm3 LED is illuminated with Option Audible Alarms; All Alarms & Fail, All
Alarms, High Alarm Only.
• Fault LED is illuminated with Option Audible Alarms; All Alarms & Fail.
The external buzzer and annunciator will also be activated when the data base Integrity
is checked or when the SILENCE, RESET_RELAY or TEST pushbuttons are pressed
and when data base initialization confirmation pushbutton is pressed.