Sierra Wireless Airlink GX450, Руководство пользователя по оборудованию

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Installation and Startup
Rev 4 Jan.15 35
Fusing
For DC installations, Sierra Wireless recommends fusing the power input using a
2.0 A fast-acting fuse. Install the fuse on the positive line, as shown in
Figure 2-20
on page 35. For vehicle installations, use an automotive fuse.
Power Supply Conditioning
For automotive applications, the supply voltage may momentarily drop below 7 V
during engine cranking, causing the GX Series device to reboot. If this happens,
the GX device restarts automatically and is ready for use once the reboot is
complete. If your application requires the GX device to continue operating during
engine cranking, add external power conditioning circuits to ensure the supply
voltage does not drop below the rated value (7.0 V)
The following illustration shows the GX device power connector pins and the DC
cable wires.
Figure 2-20: GX Series device Power Connector Pin Diagram
+
fuse
2.0 A
fast-acting
Green wire
White wire
Red wire
Black wire
GX
Power
connector
Pin 4
Digital I/O
Pin 2
Ground
Pin 3
Ignition Sense
Pin 1
VCC
Battery
or
Power Source
(9 VDC to 36 VDC
12 VDC Nominal
To contact switch, relay, or external device
Note: Pin 4 has a maximum rating of 30 V, 150 mA
To vehicle ignition
(or to VCC if NOT connected to the ignition)
Note: Colors are colors of
wires on the DC connector cable
-
Pin 4 is configured in ACEmanager
as Digital Input/Relay Output 1