Specifications

M2M Control
by Infranet Technologies GmbH Ph: +49.40.69647-260
Tempowerkring 2 Fax: [phone]
21079 Hamburg Email: [e-mail]
Germany Web: www.m2mcontrol.de
Technical Manual 1.05, C600 Professional
Page 8 of 24
Power supply
The C600 Professional unit is to be supplied with 8..36 VDC from an external DC power
source connected to the 4 pin power connector. Positive power is applied to the SUPP pin
and ground is connected to the PGND pin.
The connector has two “SUPP” supply pins as these also supplies power for the Digital
Outputs. If the total current consumption on the digital outputs exceeds 1.5A then power
must be applied to both pins. Otherwise one pin would be sufficient.
There are three different labels for the ground connections: Power Ground (PGND), Signal
Ground (SGND) and Analog Ground (AGND). The signal and analog grounds are filtered
from the power ground. Power ground must only be used as power supply return path. The
signal ground is used as ground reference for digital I/O’s and serial interfaces. And the
analog ground is used as a low noise analog ground reference for the analog inputs.
The C600 is protected against wrong polarity. However if the C600 unit is installed with
ground connected to the C600 unit chassis (for example mounted with screws on the
vehicle chassis) a wrong polarity will destroy the internal GND connection. It is therefore
recommended to install a fuse on the positive supply for protection.
The C600 also contains an internal high capacity backup battery, which will supply the
C600 if the external power supply should fail or be disconnected. By default the C600 is
powered down when a power fail occur. This setting however can be changed. Please
consult the M2M Control IDE online help for more information.
When the ignition input is activated with a logical high, the C600 unit will wake-up if it was
in power down mode. The ignition input (digital input 5) is available on the power
connector to minimize the need for connectors in minimal connector installations, but it is
also available on the 16 pin connector (digital I/O and analog Inputs) - only one should be
used at a time.
X1: 4 pin (Power) connector overview.
Pin Name Description
1 SUPP Power supply, positive (+) connection
2 DI5/IGN Digital input 5 / Ignition input (Shared with 16 pin connector)
3 SUPP Power supply, positive (+) connection
4 PGND Power Ground