ST
- Provides a pulse transition at the chosen day, month year, hour, minute, and second. Single Trigger polarity
may start as either high (positive) or low (negative). When the trigger occurs, it transitions to the opposite polarity
and remains at that value until Single Trigger is deliberately reset.
4.2.6
Serial Port
The Model 120A comes with a 3-wire RS-232 DTE serial interface that can be used to configure and communicate
with the clock or to output a broadcast string. The serial port baud, data bit length, stop bits and parity are
configurable. The broadcast mode can be set to 1 of 9 predefined outputs or the custom setting which allows the
user to configure one. A null-modem cable is required for proper communications.
120A
Terminal
Tx
Receive
Rx
Transmit
GND
Ground
4.2.7
Downloading a Configuration File
The Model 120A current configuration can be downloaded to a binary file
using the serial command “readconfig”
.
Sending the “readconfig” command will initiate an X
-modem transfer and the Model 120A will wait for an X-
modem handshake to start sending the file when ready. The user must use a terminal program capable of an X-
modem transfer to receive the file. A successful process will look like:
>read
Start binary file transfer (Xmodem receive)...
>
Success!
>
4.2.8
Uploading a Configuration File
The Model 120A configuration can be uploaded to a binary file using the serial command “writeconfig”
. Sending
the “upconfig” command will initiate an X
-modem transfer and the Model 120A will wait for an X-modem
handshake to start sending the file when ready. The user must use a terminal program capable of an X-modem
transfer to receive the file and when done must log into the Model 120A again. A successful process will look like:
>write
Start binary file transfer (Xmodem send)...
>
Config updated, rebooting unit...
>ð
120A Main: 1.01-16
Boot: 1.00-10
FPGA: 1.00
Username:
Содержание 120A
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Страница 35: ...7 6 Clock Drawings ...