Troubleshooting The Front Panel Serial Port - Spectracom SecureSync User Reference Manual

Information Display operation can be verified and can also be configured via the Web UI, or the
front panel keypad.
A.
B.
C.
6.9

Troubleshooting the Front Panel Serial Port

The front panel serial port can be used for SecureSync 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) connected to a PC run-
ning a terminal emulator program such as Tera Term or Microsoft HyperTerminal. The port settings
of the terminal emulator should be configured as 9600, N, 8, 1 (flow control setting does not mat-
ter).
If the terminal emulator program does not display any data when the keyboard <Enter> key is
pressed, either SecureSync is not powered up or there is a problem with the connection between
SecureSync 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 SecureSync. 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 keyboard.
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 456 for more information on using a terminal
emulator software to communicate with SecureSync via serial port.
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Using the front panel keypad to verify the LCD Information Display is configured to
display a blank page:
To verify the front panel LCD Information Display is configured to display a blank page, just
press any keypad button. As long as the keypad is unlocked, the Home screen will be dis-
played (after one minute of not pushing any keys, the screen will go back to blank).
NOTE – The information that is selected, is the page that is normally displayed in the
LCD window, beginning one minute after the keypad is no longer being used.
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
"Using the Keypad and Information Display" on page 28.
Using the Web UI to change the information normally displayed in the LCD Inform-
ation 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 "Front
Panel Configuration" on page 178.
6.9 Troubleshooting the Front Panel Serial Port
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