Voice Broadband Optical Multiplexer
User
Manual
15
connected.
3.
The
transmission
distance
exceeds specifications of the
ordered product.
4.
Failure
at
optical
interface
module.
on specifications of the ordered
product.
4.
Contact the distributor.
Ethernet
can
be
pinged, but there is
packet loss.
1.
The network cable is not
twisted-pair
2.
The cascade of HUBER is too
much
3.
Operating mode is not correct
4.
The device clock is not
configurated properly on the
datalink.
1.
Make the connecting cable properly
2.
Change the network structure to
reduce the multiple cascades of
HUBER
3.
Set proper operating mode
4.
Set other device clock mode on the
line
E1 line alarms after
the E1 interface is
connected.
1.
The RX and TX are reversed at
E1 interface.
2.
The E1 connecting cable is not
properly made.
3.
The
transmission
distance
exceeds specified value.
1.
Swap RX and TX.
2.
Make the E1 connecting cable
properly.
3.
75Ω: 300M 120Ω:500M
The telephone noise
is too intense.
1.
The voice line is not in
the distribution frame, the
contaction is loose
；
2.
The
contaction
of
telephone line connected
to the telephone is bad.
1.
Check the distribution frame and
fasten the lines
；
2.
Re-make the telephone line
；
