CHAPTER FIVE - OPTIONS: CHANNELS 1 and 2
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SG-System I Operating Manual
5
Option 177: Digit Replace
Default (00)
Use this option to replace one particular digit with another. It is provided in order to deal with those panels, particularly those working with
DTMF, that will send a ‘0’ instead of an ‘A’. It also allows the user to smooth operatons with the automation software, which will not always
accepts ‘0’s.
Option 177 works in conjunction with Option 1A2. When Option 1A2 is enabled and Option 177 is programmed with an ASCII value, the
receiver will replace or insert an account code digit. Option 1A2 determines whether to replace or insert a digit. To replace a digit set Option
1A2 to 0x, where x is the digit to be replaced. To insert a digit set Option 1A2 to 8x, where x is the digit in the account code; following this
digit will appear the inserted digit.
Example 1 (Replacing)
Option 177 is set to 41 and Option 1A2 is set to 01; the account code is 9876 1RRLLLssssss9876sXssYZ.
The receiver will remove the first digit (Option 1A2 = 01) of the account code (‘9’ in this example) and replace it with the ASCII value of
41, which is an ‘A’.
New output: 1RRLLLssssssA876sXssYZ
Example 2 (Inserting)
Option 177 is set to 2D and Option 1A2 is set to 82; the account code is 9876 1RRLLLssssss9876sXssYZ.
The receiver will insert the ASCII value of Option 177 - in this case the ASCII value of 2D (2D is a ‘-’) - into position two (Option 1A2 =
82) and the account code will shift to the left. The account code of 9876 will be converted to 9-876, as indicated below.
New output: 1RRLLLssssss9-876sXssYZ
Option 177 will not affect SIA.
Option 178: Maximum Inter-Digit
Default (00)
It is possible that established diallers may have some difficulty in communicating with the line cards. Use this option to overcome this diffi-
culty, should it occur. When programmed as 00, the inter-digit time is determined by the Baud rate of the format being used; all other values
are in 100 msec increments.
00 - Automatically determine inter-digit by baud rate (Default)
01 - 100 msec
02 - 200 msec
... ...
0A - 1000 msec
Option 179: Maximum Inter-Burst
Default (00)
It is possible that established diallers may have some difficulty in communicating with the line cards. Use this option to overcome this diffi-
culty, should it occur. When programmed as 00, the inter-burst has a time of 100 msec; all other values are in 10 msec increments.
00 - 100 msec (default)
01 - 10 msec
02 - 20 msec... etc.
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