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8
DC-8 Plus Installation and Operation Manual
OPERATION
NOTE:
THE “MASTER” (MONITORING and CONTROL) ACCESS CODE is
entered as follows: (STAR)* (STAR) * xxxxxxxx The factory default is **
NOTE:
When the DC-8 Plus receives a call, the red “RING” LED will light and
the rear panel RING open collector will go low each time the ring signal is
detected.
NOTE:
The call will be answered after the user-programmed number of
rings. At this time, the “HOOK” LED will light and the rear panel HOOK open
collector will go low.
NOTE:
The DC-8 Plus will hang-up if the following conditions occur:
1 - If more than 1 minute has elapsed before a correct access code is entered.
2 - If no commands are detected for 1 minute. CPC defeated.
3 - If the calling party hangs up.
4 - If command 99* (star) is entered.
CONTROLLING, OR POLLING THE RELAYS
Relays may be selected by entering the appropriate relay number. This command
will produce a relay action for as long as the key is held. If you prefer a latching
contact closure, enter the # (pound) key, the relay number, followed by the * (star)
key. Performing this function will latch the relay into the "on" mode. To unlatch a
relay contact, enter the * (star) key, relay number, and the * (star) key. Performing
this function will return the appropriate relay to an "off" or unlatched mode. If you
have selected the interlock mode, only one relay may be latched at any one time.
After each command, a double bleep will be heard acknowledging completion of the
command. If an error tone (three warbles) is received, re-enter the command. In
order to check the status of any relay, simply press the # (pound) key, followed by
the TWO DIGIT relay number, and the * (star) key. A high tone will be heard if the
relay is closed and a low tone if the relay is open. Follow the format provided with
the DC-8 Plus COMMAND GRID.
NOTE:
During a power outage, when power is returned, latched relays will
return to their pre-power outage position.
POLLING THE STATUS INPUTS
In order to check the status of any STATUS / PAGER ALERT input, simply press
the * (star) key, followed by the TWO DIGIT status number, and then the * (star)
key. In the event the status input condition is in a (> + 2.5 vdc) "high" condition, a
high tone will be heard. In a “low” (ground) status condition, a low tone will be
heard. After each command, a double bleep will acknowledge completion of the
command. If an error tone (three warbles) is received, re-enter the command.
Follow the format provided with the DC-8 Plus COMMAND GRID.
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