Cloud Electronics PM16 - Manual (Page 37)

PM4/8/12/16 & PM4/8-SA Installation and User Guide v1.0 37
Auto-Reset of Zone and Message Selection
By default, the last zone selection and message selection (SA models only) made
remain in place after the announcement (or message broadcast) has been made. This
enables a supplementary announcement to be made to the same set of zones without
selecting them a second time, or for the pre-recorded message to be repeated
without re-selection. The retained zone and message selections are indicated by the
front panel LEDs.
The PM may be configured to automatically cancel zone selection immediately after
an announcement or message broadcast has been made, if this method of operation
is preferred by the user. This may suit situations where the combination of selected
zones varies from one announcement to the next.
Auto-Reset is enabled by setting jumper J10 to ON. See “PCB layout diagrams”
on page 49 for a diagram showing jumper locations. When set, this feature will
automatically cancel selected zones and any selected message (SA models only) when
the ‘TALK’ (‘TALK/SEND’) or ‘CALL ALL’ buttons are released.
NOTE: With auto-reset enabled, if a zone selection (and message selection on
the SA model) is made but the TALK (or TALK/SEND) button not pressed, the
selection(s) will be cancelled automatically 30 seconds after the last key-press.
Lock Groups
It is possible to disable Zone group definition (see “Zone Groups” on page 33).
This feature may be useful if groups are being defined as part of the installation and it
is felt that they will not need to be altered.
Once the groups have been defined, setting jumper J9 to ON will lock these group
settings, and it will not be possible to re-define any groups. On the SA models, setting
Lock Groups to ON also ensures that any assignment of pre-recorded messages to
zone groups cannot be altered.
See “PCB layout diagrams” on page 49 for a diagram showing jumper locations.
NOTE: NVM Reset (set with J7 – see “Power-On Non-Volatile Memory (NVM)
Reset” on page 40) has priority over Lock Groups. This means that even if Lock
Groups is ON when a NVM Reset takes place, the group memories will be cleared.