NXU-2B Operations Manual
6-6
6.4
Troubleshooting Table
The following table may be used to help troubleshoot problems you may encounter during
installation or operation of the NXU-2B.
Table 6-1
Troubleshooting Tips
Symptom:
Possible Causes:
Main Power LED is not illuminated
Check that AC adapter is operational and firmly
plugged in.
Cannot place the unit into Command Mode as outlined
in Section 3.3
Check RS-232 connections
Verify terminal settings: 9600 baud, 8 data bits, 1 stop
bit, no parity
(Note: if you have previously used Command Mode to
set the serial port baud rate to a value different than
9600 then you must use the new baud rate to enter
Command Mode.)
Verify that no flow control, either hardware or
software, is being used in your terminal program.
Make sure you wait at least 5 seconds, and then type
+++ (three plus signs) within 1 second.
Settings made in Command Mode do not appear to take
effect.
You must issue a SAVE command after making
changes in order to save the new settings and restart the
NXU-2B.
Client and Server units are properly configured and
online but LINK ACTIVE is not on.
Verify that both the Client and Server NXU-2B units
are “visible” on the network by “pinging” their IP
addresses from a network-connected computer.
Verify that the Server’s IP address has been
programmed into the Client using SRVRIP command.
The port used by the NXU-2B for receiving audio from
the network has a default value of 1221. Under normal
circumstances, there is no reason to change. If
necessary, it can be changed using the PORT command.
Type PORT<port number> and press ENTER. The port
number must be different from the command port and
range between 1 and 65535.
- 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-2B 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.
Summary of Contents for NXU-2B
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Page 18: ...NXU 2B Operations Manual 1 10 End of Section One...
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Page 60: ...NXU 2B Operations Manual 6 8 End of Section Six...
Page 62: ...NXU 2B Operations Manual 7 2 End of Section Seven...
Page 68: ...NXU 2B Operations Manual 8 6 End of Section Eight...