GAI-Tronics 352-104 Podręcznik - Strona 13
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Model 352-101, 352-102, 352-103, & 352-104 Div. 1 SMART Hazardous Area Telephones Page 13 of 17
Basic Programming
The following programming command can be entered from any touch-tone telephone. Acceptance of a
data transfer command is indicated via a return code transmitted as an audible DTMF tone.
Call Time-out
The call time-out feature, which is used to limit the duration of calls, can be set between one minute and
4.5 hours. The time limit is set by entering a number from 120 to 32400.
This number represents the number of half-second increments of duration. Entering 0 results in a call
time-out of 4.5 hours.
Enter *37<120~32400># to assign a time limit, or change an existing time limit.
*37
<120~32400> Call duration (60–16,200 seconds, 0 = 4.5 hours) – See example below.
#
Multiply the desired time limit, in minutes, by 120 to determine the call duration.
Example: For a call duration of 5 minutes:
5 minutes 120 = 600
Therefore, enter the character string *37600#, and the telephone returns a DTMF check-digit.
Command
*37<120~32400>#
'c' in the above return fields is the success tone (DTMF check digit).
f:\standard ioms - current release\42004 instr. manuals\42004-455b.doc
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Data transfer command
End of sequence indicator
Table 1. Basic Programming Commands
Return
Description
c
Write Call Time-out (120–32400 ½ sec, 0 disables)
Pub. 42004-455B
Default
Setting
10 min.