NHRC-10 User Guide
Copyright
1999, 2000, 2001, NHRC LLC. All Rights Reserved.
Page 55
5.6 DTMF Access
The NHRC-10 Repeater Controller supports a DTMF access mode, which allows the
repeater to be left in a secured disabled state, but users who know the DTMF access code
can enable the repeater. The repeater reverts to the secured disabled state when either
the repeater is idle for longer than the DTMF access mode timer, or a user sends the
DTMF access code followed by a zero.
The repeater is put into DTMF access mode by setting control operator group 0, item 5 to
enabled (1). See section 4.1 for information about this control operator switch, and
section 3.5 for information on programming the DTMF access prefix and section 3.6 for
information on setting the DTMF access timer.
When the repeater is in the DTMF access mode, the DTMF access command is used as
follows:
<prefix><state>
where:
<prefix>
is the DTMF access mode prefix.
<state>
is 1 to enable the repeater. <state> is 0 to return the repeater to the
secure disabled mode.
Example:
If the repeater is in DTMF access mode, and the DTMF access prefix is
"567", the repeater can be activated by sending "5671". At that time the repeater will
remain on until either no activity occurs on the repeater for a period longer than the
DTMF Access Mode timer or the repeater is manually deactivated by sending "5670".