DIGITIZE DGM-32/64, Installation And Maintenance Manual

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DGM INSTALLATION AND MAINTENANCE MANUAL
700135-0000 Rev. O 27
the scrolling message, zero represents 1/8 second, one represents 2/8 seconds, etc.
The highest acceptable value is 31, which represents 32/8, or four seconds. Press
CLR/SIL to clear the display. Press FUNC to advance to the next function.
4.3.10 FUNCTION 9 (SETTING TELEGRAPH ON / OFF RATIO)
During a telegraph transmission, a set of contacts are opening and closing to
transmit the telegraph message over the wire. The amount of time these contacts
are open during the
transmission versus being closed is the On / Off Ratio. Function 9 sets the On / Off
Ratio by setting the percentage of time the relay should be on (closed). The
remaining percentage would automatically represent the off time (open). The default
setting is 50 % and should be suitable for most conditions.
To view or change Function 9, press “9”, FUNC or, if you are viewing the previous
function,
just press FUNC. The second line of the display will read “9 - On/Off Ratio.”
A message will scroll on the first line:
The Telegraph On/Off Ratio is 50%. The On/Off Ratio is programmed
by the SYSTEM 3505 PRISM LX, do not change. Press CLR/SIL to
clear display or FUNC to view next Function.
To change the On/Off Ratio, enter the new number on the keypad and press
ENTER. The new percentage will display in the scrolling message. If the number
entered was out of the range, a message will display to indicate that the value was
not valid, and the original Ratio will display. As indicated in the scrolling message,
one represents 10% On / 90% Off, two represents 20% On / 80% Off, etc. The
highest acceptable value is nine, which represents 90% On / 10% Off. Press
CLR/SIL to clear the display. Press FUNC to advance to the next function.
4.3.11 FUNCTION 10 (SETTING BAUD RATE)
Note: This function is automatically downloaded from the SYSTEM 3505
PRISM LX when the SET button is pressed in the MULTIPLEX ADD/CHANGE/DEL
mode or when SYSTEM 3505 PRISM LX restarted.
This function sets the baud rate for the communications loop to the SYSTEM 3505
PRISM LX. The baud rate can be set to 300, 600, 1200, and 2400 baud. The default
value is 1200 baud, which is very rarely changed. Sometimes, because of long
communication lines or noise on the lines, the baud rate must be reduced. The baud
rate for an DGM panel must match the baud rate setup for the loop at the SYSTEM
3505 PRISM LX, or else the panel will fail to communicate with the SYSTEM 3505
PRISM LX.
To view or
change Function 10, press “10”, FUNC or, if you are viewing the previous
function, just press FUNC. The second line of the display
will read “10 - Baud Rate.”
A message will scroll on the first line:
The Baud Rate is 1200 baud. Press CLR/SIL to clear display or
FUNC to view next Function.
Enter a number from one to four, representing the selected baud rate, then press
ENTER. If the number entered was out of the range, a message will display to
indicate that the value was not valid, and the original baud rate will display. As