SmartAlarm Instruction Manual Rev 2
Page 15 of 115
HNA & HNB Horn Relays
Common Relay
– HNA & HNB are used as Horn Relays and the following
options are software selectable:-
Any channel within the annunciator can be set to operate either relay
as required.
The relay coil state can be set to Normally Energised or Normally De-
Energised.
The relay can be disabled to prevent it operating on System Test.
The relay can be disabled to prevent it operating during Sleep Mode.
Relay mode is set to horn as default but can be modified to other
modes using the configuration software.
GPA & GPB Common Alarm Group Relays
Common Relay
– GPA & GPB are used as Group Relays and the following
options are software selectable:-
Any channel within the annunciator can be set to a common alarm
group.
The group function can be set to “alarm” which keeps the signal active
until the alarm has been cleared.
Any “alarm” group within the annunciator can be linked to either relay
as required.
A reflash function can be selected per group which allows the contacts
to revert to normal and re-alarm each time a new alarm occurs within
the same group. The reflash pulse duration can be set between 1mS
and 65,000mS.
The relay state can be set to Normally Open or Normally Closed.
The relay can be disabled to prevent it operating on System Test.
The relay can be disabled to prevent it operating during Sleep Mode.
Relay mode is set to group as default but can be modified to other
modes using the configuration software.