Spectracom NetClock 9400 Series, Руководство пользователя

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B.
Using the front panel keypad to change the information normally displayed in the LCD
when the keypad is not in use:
To use the front panel keypad to reconfigure the LCD Information Display to show some
thing other than a blank page (such as GNSS information, network configuration, etc.),
see "Front Panel Keypad, and Display" on page 6.
C.
Using the Web UI to change the information normally displayed in the LCD Information
Display when the keypad is not in use:
To use the Web UI to reconfigure the LCD Information Display to show something other
than a blank page (such as GNSS information, network configuration, etc.), refer to
"Configuring the Front Panel" on page 257.
5.1.10 Troubleshooting the Front Panel Serial Port
The front panel serial port can be used for NetClock configuration or to obtain select data. The
serial port is a standard DB9 female port. Communication with this port is via a standard
DB9 F to DB9M serial cable (minimum pinout is pin 2 to 2, pin 3 to 3 and pin 5 to 5) con
nected to a PC running a terminal emulator program such as Tera Term or Microsoft Hyper
Terminal. The port settings of the terminal emulator should be configured as 9600, N, 8, 1
(flow control setting does not matter).
If the terminal emulator program does not display any data when the keyboard <Enter> key is
pressed, either NetClock is not powered up or there is a problem with the connection between
NetClock and the PC.
Using a multimeter, ring out the pins from one end of the serial cable to the other. Verify the
cable is pinned as a straight-thru serial cable (pin 2 to 2, pin 3 to 3 and pin 5 to 5) and not as
a null-modem or other pin-out configuration.
Disconnect the serial cable from NetClock. Then, jumper (using a wire, paperclip or car key,
etc.) pins 2 and 3 of the serial cable together while pressing any character on the PC’s key
board. The character typed should be displayed on the monitor. If the typed character is not
displayed, there is a problem with either the serial cable or with the serial COM port of the
PC.
Refer to "Setting up a Terminal Emulator" on page 381 for more information on using a ter
minal emulator software to communicate with NetClock via serial port.
5.1.11 Troubleshooting the Front Panel Cooling Fan
The cooling fan (located on the front panel, to the right of the LED time display) is a tem
perature controlled cooling fan. Temperature sensor(s) determine when the cooling fan needs to
turn on and off. It is normal operation for the cooling fan to not operate the entire time NetC
lock is running. It may be turned off for long periods at a time, depending on the ambient and
internal temperatures.
NetClock User Reference Guide 333
APPENDIX