Nautel VR-Link, Техническое руководство по эксплуатации

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VR-Link Technical Instruction Manual
Page 4-1
Section 4 Troubleshooting Issue 0.6
VR-Link
TECHNICAL INSTRUCTIONS
Section 4 TROUBLESHOOTING
4.1 INTRODUCTION
If the VR-Link or associated equipment
becomes non-operational, some simple
troubleshooting procedures can be followed
to return the unit to operational status.
NOTE
For troubleshooting directly related to either
the Vector series transmitter or the ECMP
refer to the corresponding Technical
Instruction Manual.
4.2 TROUBLESHOOTING
If there is an issue with the VR-Link that
requires troubleshooting, it will most likely fall
into one of four categories.
•
no contact (see 4.2.1)
•
no control/monitor response (see 4.2.2)
•
power supply voltages (see 4.2.3)
•
Netburner web page will not open (see
4.2.4)
4.2.1 No Contact
It can be easily determined if there is a
connection problem between the VR-Link and
the Vector series transmitter.
Open the Netburner web page and enter the
New Device (or Vector) page found under the
Equipment heading in the left menu.
If there is no contact, the top of the page will
display ‘Not In Contact With the Device’ in
yellow letters. If there are any ECMPs
connected to the VR-Link and they are
configured as described in Section 3 of this
manual, the sixth LED down on the front of
the ECMP will be on, indicating a connection
failure.
Troubleshoot a connection failure as follows:
(a) Check all cables between the VR-Link
and the Vector transmitter for loose
connections.
(b) If the VR-Link is connected to the Vector
using a modem, check to see if the
modems are communicating. The
modem display at each site should
indicate CD as well as flashing TD and
RD. If not, there may be a bad
connection between the modems or the
modems initialization strings may be bad.
Disconnect and reconnect the phone
cable and/or serial cable from the modem
to attempt to re-establish the connection.
(c) Ensure the transmitter’s power has not
been disrupted.
(d) Disconnect power from the VR-Link and
check for loose cables inside the unit.
(e) Ensure that the maximum distance
between the VR-Link and Vector has not
been exceeded. This is dependent on the
connection type being used (see 2.3.3.3).
(f) Reboot the VR-Link and/or Vector to
attempt to re-establish the connection.
(g) If you cannot establish contact between
the VR-Link and Vector immediately after
installation, check the following:
•
Ensure serial interface PWB (A1)
jumpers are set to the correct positions
for the type of connection (see 2.3.3.3)
•
Ensure the Vector’s RCMS settings are
correct (see Vector manual). For RS-232,
RS422 and leased line, the Vector GUI
RCMS must be set for DIRECT
connection.