GAI-Tronics 352-101 Manual - Página 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).

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Data transfer command

End of sequence indicator

Table 1. Basic Programming Commands

Return

Description

Write Call Time-out (120–32400  ½ sec, 0 disables)

Pub. 42004-455B

Default

Setting

10 min.