PreView Sentry ST82 Series, Руководство по эксплуатации, Страница: 8 / 25

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Page 4
Sensor Interfaces and Configuration
Communication
The Sentry
™
communicates with the operator display using a CAN interface
as specified in ISO 11898-2. The CAN bus operates at 250 KBits/second
and is not terminated in the sensor.
Since CAN is a standard communication interface, the sensor can be
connected to other CAN controllers, telematics interfaces, displays, etc.
For custom installations, the CAN bus protocol is available from PRECO
®
Electronics. However, it is not described in this document.
Alarm Output
The Sentry
™
provides an auxiliary output that becomes active whenever the
Sentry
™
detects an object. This output can be used to activate an external
backup alarm or other devices as desired. The output is switched from a
high impedance state to ground when active and is protected against an
over-current or electrical short condition. The maximum operating current
is approximately 1 amp, including any inrush current.
Sensor Input
The PreView
®
Sentry
™
ST87 series radar sensor provides an auxiliary input
that can be used to activate the alarm output, if configured. Contact
PRECO Electronics
®
for more information.
Cable Connection
The Sentry
™
comes equipped with a pigtail harness terminated with either
a Deutsch DT connector (ST87 series) or a Conxall Connector (ST82
Series). The pinout for the Deutsch connector is defined in Figure 5. The
mate for the Deutsch connector is the Deutsch DT04-08PA-C015.