LR77 v2
5.7.1
Status indication
About router status inform eight LED indicators on the front panel. ETH port, PORT1 and
PORT2 have two additional LEDs that provide information about port status.
Caption
Color
State
Description
PWR
Green
Blinking
On
Fast blinking
Router is ready.
Starting of the router.
Updating firmware.
DAT
Red
Blinking
Communication in progress on radio channel.
WAN
Yellow
1x flash per sec.
2x flash per sec.
3x flash per sec.
Signal strength is good.
Signal strength is fair
1
.
Signal strength is poor
2
.
See table
for value ranges of signal strength.
USR
Yellow
Function of this LED diode can be selected by user.
OUT
Green
On
Binary output active.
IN
Green
On
Binary input active.
ETH
Green
On
Off
Selected 100 Mbit/s.
Selected 10 Mbit/s.
ETH
Yellow
On
Blinking
Off
The network cable is connected.
Data transmission.
The network cable is not connected.
PORT
Green
Depends on the expansion port (see user’s manual for used port).
PORT
Yellow
Depends on the expansion port (see user’s manual for used port).
SIM1
Yellow
On
The first SIM card is active.
SIM2
Yellow
On
The second SIM card is active.
Table 10: Status indication
State indication of WAN LED is updated every 10 seconds.
GPRS/EDGE (RSSI)
UMTS/HSPA (RSCP)
LTE (RSRP)
Signal strength
> -70 dBm
> -75 dBm
> -90 dBm
good
-70 dBm to -89 dBm
-75 dBm to -94 dBm
-90 dBm to -109 dBm
fair
< -89 dBm
< -94 dBm
< -109 dBm
poor
Table 11: Value ranges of signal strength for different technologies.
1
Or the difference between neighbouring cells is exactly 3 dBm.
2
Or the difference between neighbouring cells is smaller than 3 dBm.
16
