Crestron C2N-NPA8, Руководство по эксплуатации

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Network Poll Accelerator Crestron C2N-NPA8
Troubleshooting Communications
Use the following checklist if communications cannot be established with the
C2N-NPA8.
1. Verify that you are using the correct cables. As described previously,
an RS-232 connection requires a straight-through serial cable. That is,
pin 1 on one end is connected to pin 1 on the other end. Pin 2 connects
to pin 2, etc. With a TCP/IP connection, you must use a CAT5 cable
with 8-pin RJ45 connectors.
2. With a serial connection, verify that the correct COM port on the PC
has been selected. Some computers have more than one COM port;
some may be internal (e.g., for a modem). Consult the manufacturer’s
documentation for further information about the COM ports on your
PC.
3. Check the ERR LED indicator on the C2N-NPA8. If this LED is
illuminated before a program is loaded, examine the error log through
the Viewport menu
Functions | 2-Series | Error Log | Show Error
Log .
4. Correct any problems indicated by the error log, i.e. connect cables,
verify Ethernet parameters, reconfigure Cresnet IDs to eliminate
duplicates, etc.
5. Clear the error log. If the ERR LED illuminates again, unplug the unit
and reapply power after a few seconds. If the LED illuminates again, or
if communication still cannot be established, contact Crestron customer
service.
Troubleshooting Non-Functioning Units
If after reviewing the troubleshooting chart on page 27, the C2N-NPA8 is still not
functioning, reinstall the operating system file by performing the following
procedure.
1. Connect a DB9 straight through RS-232 cable between the C2N-NPA8
and a PC. Refer to “Establish a Serial Connection” on page 14 for more
information.
2. Open Viewport and select Setup | Communication Settings to open
the “Port Settings” window.
3. In the window, select RS-232 (Connection Type), 57600 (Baud Rate),
N (Parity), 8 (Data Bits) and 1 (Stop Bits) and click OK .
4. Power down the C2N-NPA8.
5. While powering up the C2N-NPA8, press and hold ALT + K on the
keyboard until the following text (or similar) appears in Viewport:
System Monitor [v1.001 (0001)]
12-19-01 16:25:23 32 MB RAM, 4MB FLASH
CS>
NOTE: After this, you can increase the baud rate to 115200 (for faster
communication) by pressing F8 on the keyboard and then selecting 115200 from the
“Set Baud Rate” window.
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Network Poll Accelerator: C2N-NPA8 Operations Guide – DOC. 6087A