Connecting The Enterprise Router; Power Connector On The Es450 Gateway - Sierra Wireless AirLink ES450 Hardware User's Manual

Table 3-1: Recommended Antenna Separation
2G GSM/GPRS/EDGE
2G GSM/GPRS/EDGE
2G GSM/GPRS/EDGE
2G GSM/GPRS/EDGE

Connecting the Enterprise Router

See

Power Connector on the ES450 Gateway

If you are using the DC power cable to connect the ES450 gateway to a power source:
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See
Rev. 7 July 2019
Service Frequency
Connecting the Enterprise Router or other Equipment
Pin 1—Use the red wire in the DC cable to connect Pin 1 to the power source.
Include a 2.0 A fast-acting fuse in the input power line. Sierra Wireless recommends
using a continuous (unswitched) DC power source. For installations that require the
gateway to be turned on/off, Sierra Wireless recommends using the Ignition Sense
(Pin 3) input for that purpose.
Pin 2—Use the black wire in the DC cable to connect Pin 2 to ground. See also
Grounding the ES Series Gateway Chassis
Pin 3 (Ignition Sense)—Sierra Wireless recommends alway using the Ignition Sense
wire to turn the gateway off. It should not be turned off by disconnecting power.
For installations where the ES450 gateway is turned on/off, use the white wire in the
DC cable connected to Pin 3 to:
· Turn the gateway on/off with the vehicle ignition
Note: To turn the gateway on/off with the vehicle ignition, Sierra Wireless strongly recommends
using an unswitched VCC on Pin 1 (Red, Power wire on DC cable) with Pin 3 (White, Ignition
sense wire on DC cable) connected to the ignition.
· Turn the gateway on/off with a low voltage disconnect device
Note: To turn the gateway off when the voltage drops below a defined level, connect Pin 3 to
an external low voltage disconnect. See
For installations where the ES450 gateway is permanently on (never turned on/off),
connect the white wire to the red wire.
Pin 4 (General Purpose I/O)
connect Pin 4 to a switch or relay on an external device you want to monitor. For
more details, see page
Figure 3-3 and Table 3-2.
Wavelength ()
(MHz) (mm)
850 353
900 333
1800 167
1900 158
on page 31.
Figure 3-3 on page 31.
(Optional)—Use the green wire in the DC cable to
32.
30
On-site Installation and Setup
Best Antenna Good Antenna
Separation (mm) Separation (mm)
(1/2 ) (1/4 )
176 88
167 83
83 42
79 39
on page 18.
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