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of signal, but not the signal quality. The field strength is then requested in a next check, 15
seconds later.
DC5V, STAT, LINL, VPN
LED
Colour
DC5V Green
STAT Yellow
LINK Yellow
VPN Yellow
* Shortly after switching on of the SINAUT MD740-1, the LED VPN is set to on for a short period of
time although the VPN tunnel has not yet been established. Cause: self-test of the components
during starting procedure of the device.
SINAUT MD740-1
Status
Meaning
ON
Device switched on, operating voltage is on
OFF
Device switched off, no operating voltage
Blinking
IOVPN board operational
ON
Ethernet connection to local PC / LAN
established
OFF
No Ethernet connection to local PC / LAN
ON
VPN tunnel established*
OFF
VPN-Tunnel not established
The LEDs of the SINAUT MD740-1
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