Specifications

Alto 818 Installation and Operation
8-10 P/N 66109074001 Rev. D
8.7.4 OPEN
This command manually changes the building mode to open. The mode can be changed again
with another operator command.
8.7.5 RELOCK
The RELOCK command is used to manually relock a door following the use of the UNLOCK
command or during an auto-unlock period.
8.7.6 SHUNT
The SHUNT command is used to temporarily turn off a specific access control or alarm
monitoring function while the rest of the system is under normal operation. All activities
associated with the shunted devices are temporarily disabled.
8.7.7 SILENCE
The SILENCE command causes the latched contact on an SE 778A to be opened. This latched
contact is intended for use by an audible alarm. In addition to clearing or shunting the condition
which generated the report and latched the contact, the alarm must be unlatched in one of three
manners: Resetting the ACU, turning the ACU off, or using the SILENCE command. During
normal operation, the SILENCE command is used.
8.7.8 STATUS
The STATUS command can be very important when monitoring system activities or when
responding to an alarm. See the STATUS command description in Section 6.3.20.