LST FI750/RF/W2W, Manual

Page: 25 / 31

CHECKING CHILD DEVICE LINK QUALITY
You can check the link quality: for every device directly linked to the
FI750/RF/W2W
:
CHECKING BACKGROUND NOISE
You can check the background noise measured in the channels used by the
FI750/RF/W2W
:
25
[Main Menu]
System Status
[System Status]
Child device LQ
01 - 47 | > - 75 4
02 - 80 | - 75÷ - 85 3
RF
→
EXP |
→
DEV M
RF RF Address of the chid device: it can go from 1 to 32
F after the RF address indicates that the device with this address is in link fault
* after the RF address indicates that after entering the menu the device with this RF address has communicated
with mark ≤2
→ EXP Indicates the link power (dBm) of the last communication received by the
),5)::
→ DEV
Indicates the link power of the last communication received by the device from the
),5)::
.
The possible values shown are:
> - 75 Link power ≥ - 75dBm
- 75÷ - 85 - 85 dBm ≤ Link power < - 75dBm
- 85÷ - 100 - 100 dBm ≤ Link power < - 85dBm
- 100÷ - 105 Link power < - 100dBm
The value is the “ translation ” of the link mark to the dBm interval.
M Indicates the link mark of the last communication received by the device from the
),5)::
.
The possible values shown are:
4 Excellent link quality
3 Good link quality (minimum mark for a reliable link)
2 Poor link quality
1 Bad link quality
[Main Menu]
System Status
[System Status]
Background noise
FIELD CHA: - 117
CHB: - 119
NET CHA: - 120
CHB: - 117
FIELD CHA: Indicates the background noise (dBm) measured in the channel A of the field channel pair
CHB: Indicates the background noise (dBm) measured in the channel B of the field channel pair
NET CHA: Indicates the background noise (dBm) measured in the channel A of the network channel pair
CHB: Indicates the background noise (dBm) measured in the channel B of the network channel pair