User's Manual

The host can be operated
through USB
communication, but after
press call button, the RX
light does not shine.
No outer power supply, USB power can just
download or read the data,wireless operation is
not supported
Press call button, RX light
shines, but TX light does not
shine
Please connect with USB to read the data, to
check whether the call button has been
programmed to relative pager and whether the
pager is valid
After connecting USB cable,
the software shows no
connection
Please check whether USB is good. Check the
computer--device manager: whether there are
human input device and restart the software
The transmitter is connected
through 485 interface but the
data can not be sent
Please check the setup, whether the
transmission mode is 485output mode. Check
whether there are problems with the cable
The transmission distance
is too close
Check the RX and TX antenna are in a opposite
position
If there are electronic wire around the TX
antenna, please keep the electronic wire far
away from the antenna
If the TX antenna is close to the metal, please
keep the antenna far away from the metal