Security Escort | Technical Reference Manual | 3.0 System Menus
and Screens
Bosch Security Systems | 6/12 | 38947D
3.3.4 Transponder Troubles
Popup
All troubles with these checkboxes
checked present a popup screen to the
operator when the respective trouble
becomes active.
Pager
All troubles with these checkboxes
checked send a page to the service
pager when the respective trouble
becomes active.
Communications Failure
To continually assure that
communications between the central
console and each transponder are
functioning properly, each transponder
is required to send a message to the
central console periodically. If there
is no response from the transponder,
the central console displays a
Communications Failure warning on the
central console and records the
condition in the audit file.
If a transponder determines it lost
communications with the central
console, it assumes control of the
outputs of the devices connected to it
and transmits I’M OK messages until it
is acknowledged by the central console.
If during this loss of
communications, an alarm
transmission is received by
one or more of the receivers
attached to the transponder,
the transponder activates any
alert units attached to it as
well as the horns and red
LED’s on any of its receivers
which detected the alarm
transmission. Since the
transponder does not have
access to the Subscriber
Database, it must assume that
all transmitters are valid, so
even unauthorized (not in the
Subscriber Database)
transmitters produce audible
alarm indications (if the
System is set for audible
alarms in the Set Security
Preferences Screen).
The central console also attempts to
reestablish communications by
continually requesting transmissions
from the transponder and listening on
the communications channel. When
communications are restored with the
central console, the transponder
transmits any alarm and trouble
conditions that occurred during the
communications loss, and control of the
horns, LED’s, strobes, and sirens
reverts to the central console.
This approach to managing a
communications loss assures that alarm
events can not go undetected even if
the central console is out of operation
temporarily.
AC Loss
The transponder senses when it loses AC
power and reports the condition to the
central console. After a few seconds
delay, the central console, displays a
pop-up alert and records the condition
in the audit file. See Section 3.3.10
Transponder Current Status Screen.
Low Battery
Periodically during normal operation,
the transponder tests its battery. If
the test fails, it immediately reports
the condition to the central console.
After a few seconds delay, the central
console displays a pop-up alert and the
condition is recorded in the audit
file.
