Specifications

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Figure 2.4.2-1: The DB9 female connector for use with RS232 serial.
Reproduced with permission of sparkfun.com.
2.4.3 Non-Standard Connector
Give the user of standard connectors and communication protocols one concern
is that the units are exposed to several hazards. The first is the issue of device
security. The devices have to be secured against tampering. While there will be
electronic safeguards against such tampering, an additional layer of security can
also be offered by a non-standard connector and/or a non-standard
communication protocol. In addition, the user may attempt to interface or power
the units in a way for which the units were not designed. As such, it would be
possible for the user to damage various components of the units, such as the
battery and logic circuits. This could result in permanently disabling the unit, thus
rendering the user’s vehicle inoperable. One such example is the connector
shown in Figures 2.4.3-1 and 2.4.3-2. A custom cable would have to be
fabricated to support this connector.
Figure 2.4.3-1: Series 678 5-pin male
connector. Reprinted with Permission
from binder-usa.com
Figure 2.4.3-2: Series 678 5-pin
female connector. Reprinted with
Permission from binder-usa.com