31
Issue 13 (11/14/2017)
7.5
Electroline Transponder LEDs diagnostics and troubleshooting
LEDs
Description
Normal Operation:
When all LEDs are lit, this indicates that the DHT is properly
cabled, the DOCSIS® registration process is complete and communications have
been established with the monitored device. The CABLE LED flickers at each data
transfer and the MON LED flickers every 5 seconds.
RF problem:
If the CABLE LED keeps blinking slowly without ever being lit
steadily, there may be a problem with the RF connection. Make sure the coaxial
cable
is connected to the DHT’s RF port. Please note that the CABLE LED blinks at
startup while the DHT completes its DOCSIS® registration. This LED should be lit
steadily within 30 seconds to 2 minutes, and will flicker at each data transfer. If the
condition persists, the DHT resets itself after about 25 minutes.
Device communication problem:
If the MON LED is off, there may be a problem
with the way the DHT is connected to the standby power supply. If this LED is
blinking, this means that the DHT is establishing communications with the standby
power supply. The LED should be lit steadily within a few seconds and then flicker
every 5 seconds as long as the monitoring link is active. If this LED is dark but
flickers every 5 seconds, then data communications with the device have been
lost. If the LED remains off, and dual IP mode is activated, then there is a
provisioning problem with the second IP address. Try resetting the unit.
Setup Error:
If the OK LED is off, there may be a problem with the way the DHT
is connected to the batteries. Make sure you have connected the correct wires to
each battery in each string. If the problem persists, there may be an internal
hardware failure.
Initialization Error:
If only the PWR LED is on after the unit has been powered for
one minute, then the DHT is not initialized. This may be due to an internal
hardware fault. Try resetting the unit.
If the PWR LED is blinking slowly and the other LEDs are off, this means that the
DHT is in “sleep” mode because one or more of the batteries has dropped below
10.5 VDC. When the DHT is in this mode, it stops monitoring the standby power
supply, and thus conserves the power supply’s battery power. As soon as the
batteries are charged to at least 12 VDC each, the LED will be lit steadily.
Lit steadily or
Blinking slowly
Off
flickering occasionally
Содержание EB1s
Страница 2: ......
Страница 35: ...33 Issue 13 11 14 2017 Fig 8 1 Battery Balancer wiring 36V 3 batteries 1 string ...
Страница 36: ...34 Issue 13 11 14 2017 Fig 8 2 Battery Balancer wiring 48V 4 batteries 1 string ...
Страница 37: ...35 Issue 13 11 14 2017 Fig 8 3 Battery Balancer wiring 36V 6 batteries 2 strings ...
Страница 38: ...36 Issue 13 11 14 2017 Fig 8 4 Battery Balancer wiring 48V 8 batteries 2 strings ...