© 2021 Cypress Solutions
Complete Manual: CTM-200 R2 (Revision 1.3)
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Additional Features
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
•
Man Down Pendant alarms
