Bosch PT-400 ユーザーズマニュアル

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Security Escort | Technical Reference Manual | 1.0  Security Escort 
System Architecture 
EN | 8 
 
 
Bosch Security Systems | 6/12 | 38947D 
 
The console in the security office 
sounds an alert tone and displays the 
alarm as usual except for a yellow 
background and text advising that the 
event is a silent alarm from a security 
officer. This allows security personnel 
to call for assistance without 
attracting unwanted attention. 
Maintenance Transmitter 
The Maintenance Transmitter is used 
exclusively for system set-up and 
diagnosis. Maintenance alarms are used 
during the system set-up to verify that 
a receiver is functioning and is 
properly identified in the Transponder 
Database. The maintenance alarm is also 
used to measure the received signal 
strength of the receivers from any 
location within the protected area. The 
central console distinguishes the 
Maintenance Transmitter by its unique 
coded message and produces a printout 
of the signal strengths reported by 
receivers on each transponder. 
In the Test Mode, the Maintenance 
Transmitter behaves like a normal 
Subscriber Transmitter except that the 
central console does not verify the 
user ID portion of the transmitted 
code. Unlike the Subscriber 
Transmitters, all Maintenance 
Transmitters are assumed to be valid. 
Point Transmitter 
The Point Transmitter is used to 
protect assets not people. It has a 
magnetic reed switch and a supervised 
loop that reports both open and shorted 
states. The software can be programmed 
to report alarms and troubles on any of 
these conditions going off normal with 
unique text identifying the condition. 
These transmitters are supervised and 
also optionally support the alarm 
follower. 
1.1.3 Receiver 
The receivers are located throughout 
the protected area, including building 
interiors. Inside buildings, the 
spacing of these devices depends on the 
building construction and the locating 
precision required. Outdoors, spacing 
depends on terrain and foliage 
conditions and building obstructions. 
The procedure for location of receivers 
is contained in The Security Escort 
Installation Guide
Each receiver contains a radio receiver 
to detect the transmissions from 
transmitters, and microcomputers to 
decode and interpret the received test 
and alarm messages. In addition, the 
microcomputers monitor to detect 
tampering, and report such conditions 
to the transponder. 
Each receiver contains a sounder 
similar to those in self-contained 
smoke detectors. These sounders are 
optionally activated if the receiver 
has detected an alarm transmission. 
Indoor receivers are typically mounted 
on inside walls. They are housed in 
small beige, rectangular units. Indoor 
receivers have one red and one green 
light. The green light is used to 
indicate a successful test of a 
transmitter. The red light is only 
illuminated during certain system tests 
and during alarms. 
Outdoor receivers are contained in 
small weatherproof boxes typically 
mounted on the sides of buildings and 
on light posts. Outdoor receivers do 
not have the visible red and green 
LED’s. Outdoors, the strobe lights on 
the alert units flash to acknowledge 
successful tests. 
In addition to its radio receiver, each 
receiver also contains a transmitter 
functionally similar to the hand held 
transmitters. This transmitter can be 
commanded by the central console to 
transmit a test message to other nearby 
receivers. This buddy checking is 
performed periodically to verify that 
the receiver sections of all receiver 
units are functioning satisfactorily. 
1.1.4 Alert Unit 
An alert unit consists of two 
components, a self-contained 
strobe/siren unit and an electronic 
driver unit. The latter may be housed 
in either a metal indoor enclosure or 
an outdoor enclosure (similar to the 
outdoor receiver enclosure), depending 
on the application. The strobe siren 
units are always mounted in outdoor 
locations. In addition to the function 
of attracting attention in the event of 
an emergency, the strobe unit is used 
to acknowledge a successful test of a 
transmitter.