Additional Features
32
© 2021 Cypress Solutions
Complete Manual: CTM-200 R2 (Revision 1.4)
7.
Additional Features
7.1
Automatic Power Control
The CTM-200 supports supply voltages ranging between 5.5 VDC and 36 VDC. At
default settings
power
supply voltage must be a minimum of 9VDC for the CTM-200 to operate.
Note: In some vehicle operation, when starting the engine, the vehicle supply voltage will dip below 9VDC
momentarily. The CTM-200 can handle power dips below 9VDC down to 6VDC. If continual operation is
required below 9.0 V, the CTM-200 needs to be configured using the
“cmd pwr vcct”
command.
The Chameleon CTM-200 gateway has three power modes:
Mode
Current
@ 12V
Description
Mode change event
Operation 300 mA In this mode the device is
fully powered up and ready
to receive or make network
connections
The device will go back into shutdown/standby
mode when the ignition/standby signal is
deactivated or upon expiry of the power ON timer if
configured.
Shutdown < 3mA
Only the CTM-200’s power
management circuits are
operating.
The device will go back into operation mode when
the ignition/standby signal is activated, wake on
event occurs (e.g., input, temperature, motion), or
upon expiry of the power OFF timer as configured.
The CTM-200 can be configured to remain on for a defined period after the standby/ignition signal has been
turned off. This enables the gateway to continue sending position reports or be used for data operations
even after the vehicle ignition has been switched off – e.g., for short duration driver breaks.
When in its power shutdown mode, the gateway may be configured to resume full operation by monitoring
events such as:
•
Acceleration
•
GPS location (on board Geo-Fence)
•
Time
•
Speed
•
Temperature
•
Voltage
•
Input events
