Specifications

ELAN AUDIO - SENTINEL / RCU-01 RCU01R02 PAGE 26/49
7.16 Host Paging Configuration
SENTINEL communicates with the paging service by using a dial up connection via the PSTN. To do this SENTINEL
can either share an existing modem, with the normal site communications, or it can use a separate modem. The
modem used for this feature must be connected to a serial port ( COM port ). For most users the selected COM port
will be either COM1 or COM2. If the selected port is the same as the one used for the RCU communications then
SENTINEL will automatically share both the serial port and the modem.
Com Port
SENTINEL communicates with the RCU using a master - slave communications system. This system requires the
master to send a communications packet and that the host respond to that communications within a timeout period. It
is the master's responsibility to check for responses. For most communication between SENTINEL and the RCU,
SENTINEL is the master, however for alarm transactions the RCU is the master.
Because SENTINEL can use different communication systems with different communication delays the timeout period
needs to be different for the various communications mediums. The packet response delay is the maximum amount of
delay that the master will wait for a response from the slave. The default values should be sufficient for most systems.
Dialing
Select the required dialing type. Either pulse or tone dialing.
Paging Enabled
This is a global enable/disable for the paging system. Click the checkbox to enable paging.
Add User
This will add a new paging user the database.
Delete User
This will delete a user from the paging database. If the user is still allocated to an RCU, then you must delete the user
from the RCU configuration before you will be allowed to delete.
WARNING. This deletion is permanent. The data cannot be recovered once deleted.
Edit Site
This allows editing / viewing of the specific user configuration data. Select a user to edit by highlighting the user name
then click the edit button, alternatively double click on the selected user which will automatically start the paging user
editor.
7.17 Events
All of the event information received from the RCU's are stored in a database. This event information is a snapshot of
the RCU at the time that the event was recognized by the RCU. Any analog input that has changed from being within
the alarm limits to exceeding the alarm limits or status input that has changed state will be highlighted in blue. The
state of the control outputs is also displayed.
The event information is date and time stamped by both the RCU and SENTINEL. The displayed event information is
sorted on the SENTINEL date / time stamp. The RCU date / time stamp is the time that the RCU actually accepted the
event as having occurred, it uses the RCU clock which cannot be guaranteed to be synchronized with other RCU's or
even SENTINEL itself. SENTINEL will date / time stamp the event when it is received by SENTINEL. This time will
typically be later than the RCU time ( assuming the RCU clock has been set ) and will be delayed depending upon the
communication delays etc.
In summary, the SENTINEL date / time stamp will be indicative of the sequence of events from multiple RCU's and the
RCU date / time stamp will be indicative of the event sequence for a particular RCU.
The Event display can be filtered by selecting an RCU site name, selecting the '*ALL*' entry will select all events for all
sites.
Use the scroll bar to scroll through the event database. The latest entry is at the end of the event display.