Installation and Startup
Rev 3 Dec.16
29
Step 4 — Connect the Power
The AirLink RV50
Series gateway
comes with a 3 meter (10 ft.) DC power cable.
You can also purchase an optional AC adapter.
Note: Electrical installations are potentially dangerous and should be performed by
personnel thoroughly trained in safe electrical wiring procedures.
The RV50
Series gateway
supports a voltage range between 7 V and 36 V, but
since low voltage standby mode is enabled by default (as of ALEOS 4.5.2), you
must supply greater than 9 volts at startup.
If you want to operate the gateway at a lower voltage, change the low voltage
settings once the gateway is up and running. For more information, refer to the
ALEOS Software Configuration User Guide (Services chapter).
Cable Strain Relief
Sierra Wireless recommends using cable strain relief for installations in high-
vibration environments.
Place the cable strain relief within 200 mm (8") of the RV50
Series gateway
to
reduce the mass of cable supported by the power connector under vibration.
Ideally, the strain relief mounting for the DC cable should be attached to the same
object as the gateway, so both the gateway and cable vibrate together. The strain
relief should be mounted such that it does not apply additional stress on the
power connector, i.e. the cable should not be taut and should not pull the power
connector at an angle.
Fusing
For DC installations, Sierra Wireless recommends fusing the power input using a
4.0 A fast-acting fuse.
DC Voltage Transients
The AirLink RV50
Series gateway
has built-in protection against vehicle transients
including engine cranking (down to 5.0V) and load dump, so there is no need for
external power conditioning circuits. For details, see
DSR
6
Data Set Ready
OUT
RTS
7
Ready To Send
IN
CTS
8
Clear To Send
OUT
RI
9
Not connected
—
Table 3-2: Serial Connector Pin-out (Continued)
Name
Pin
Description
Type
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