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RTU-292 Operations Manual
3.7.7 RTU-292 PASSWORD PROTECTION
The password protection feature is enabled by a dipswitch setting (SW1-5, see Table 2-1).
When passwords are enabled, access to the system is denied unless a user enters the correct
password. The same password applies both to access via telephone and via a radio (if the
DTMF Radio Access feature is used). Users are given three tries to correctly enter the system
password before the RTU-292 terminates the call attempt and returns to its waiting state.
The system assists the user in entering the password by the use of Voice and Tone Prompts (if
the Voice Prompt Option is installed), or simply with Tone Prompts.
The factory default password is “1 2 3 4”, and this password can be changed to any DTMF or
numerical value up to 10 characters in length. To change the password, first enter the
programming mode by entering ‘* 9 9”. If passwords are currently enabled, it will be
necessary to enter the correct password to continue programming. From the programming
mode, enter “* 1 x x x #” where “x x x” is the new password, up to 10 characters long. Next
enter “* #” to leave the programming mode.
3.7.8 INACTIVITY DISCONNECT TIMER
The inactivity disconnect timer ensures that the system does not remain locked up on a
completed call if system users forget to or are unable to terminate a call by normal means. The
inactivity timer samples audio from both the radio and the telephone. If no activity is detected
for a time equal to the Inactivity Disconnect Timer setting, the RTU-292 will notify the users
by three short beeps that they have five seconds to respond or the call will be terminated. If
either the radio user or the PSTN caller initiates activity within 5 seconds of the warning beeps,
the timer is reset.
Inactivity Disconnect Timer lengths of 2 minutes to 120 minutes (or disabled) are available.
Enter “* 9 9” to enter the programming mode, then “* 2 x” to set the timer. The value of x sets
the timer length. See Table 3-2 for the list of timer durations. The value of x = 0 will disable
the timer so that the connection may be maintained indefinitely. Unless a permanent
connection is required, disabling the timer is not recommended. If the telephone caller does not
correctly terminate the call, the unit can become locked up in the connected state. Once the
desired timer length is set, enter “* #” to leave the programming mode.
3.7.9 CALLING TIMER
The Calling Timer determines how long the RTU-292 will attempt to place a telephone call.
Once the timer expires, the RTU-292 terminates the attempt. Note that if the unit detects a
busy signal or other feedback that indicates that the call cannot be placed, the attempt will be
immediately terminated.
Two Calling Timer lengths, either 30 seconds or 1 minute, are available. Enter “* 9 9” to enter
the programming mode, then “* 3 x” to set the timer. The value of x sets the Calling Timer
duration. “* 3 0” sets the Calling Timer to the factory default length of 30 seconds. “* 3 1”
sets the timer to 1 minute. Once the desired timer length is set, enter “* #” to leave the
programming mode.
JPS Communications, Inc.
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