NXU-2A Operations Manual
5-2 Interoperability Now
Table 5-1 Troubleshooting
Client/Server Selection- OR -
If there is not a default server programmed
into the client, verify that a manual connection
has been entered per Section 4.5 Controlling
Connections.
Verify that the PORT has not been changed
from the default value of 1221, or if it has,
make sure the PORT value is the same on both
Client and Server.
Verify that any network firewalls in place
allow traffic on UDP and TCP port 1221.
Verify that another NXU-2A client is not
already connected to the server.
LINK ACTIVE is on, but no audio is
transmitted.
Verify that the COR line is active. Audio is
only transmitted when COR is active.
CHANNEL ACTIVE indicator is on
continuously.
Verify that the COR polarity is programmed
properly. See section 3.3.8.
If NXU-2A is attached to a radio COR line,
make sure the radio squelch is set properly.
Audio has pauses and/or gaps in it.
Check for low bandwidth or excessive latency
on the network by running a trace route from a
network-connected PC to the NXU-2A at the
other end of the link.
Cannot browse to the NXU-2A’s IP address
Check the NXU-2A SECURITY setting; this
activity may not be allowed. See section 4.6
Security for security settings.
Cannot Telnet to the NXU-2A’s IP address
Check the NXU-2A SECURITY setting; this
activity may not be allowed. See section 4.6
Security for security settings
RS-232 data is not being transmitted across
the IP link
Verify LINK ACTIVE indicator is on.
Verify that neither NXU-2A is in Command
Mode; issue a TRAN command to place the
RS-232 port in transparent mode if necessary.
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