User Manual

Gateway - QSG

AC Heater

The Gateway includes an optional 20W or 40W AC-powered heater that operates automatically

when temperatures fall below freezing (0C). The heater allows the SLA battery to charge when

outside conditions fall below freezing, helps prevent condensation from forming inside the

Gateway, and allows the Gateway to operate below its rated minimum voltage (-40C). The

heater controls are an automatic solid-state thermostat and solid-state relay; the heater is

separately fused and surge protected.

Electrical Safety

IMPORTANT: always observe electrical safety rules:

• Do not use with a damaged AC power cord or plug.

• Do not pull or carry the Gateway by its AC power cord.

• Do not drop or throw the Gateway; severe impact can damage the Gateway and create a

hazardous condition.

• Observe and comply with all electrical, safety, and building codes and regulations.

• Electrical connections should be installed and serviced only by trained and qualified

personnel.

• Do not install or service your Gateway during wet conditions (e.g. rain, snow).

• When installing the Gateway in an elevated location, use a fiberglass or other non-

conductive ladder.

• Antennas should be installed with appropriate lightning protection such as a lightning

arrestor with ground wire and ground rod. Article 810 of the National Electrical Code,

ANSI/NFPA 70, provides information about proper electrical grounding of the mast and

supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of

grounding conductors, location of antenna-discharge unit, connection to grounding

electrodes, and requirements for grounding electrode.

• Do not place antennas near overhead power lines or other electric light or power circuits,

or where it can fall into power lines or circuits. When installing antenna systems, take

care to avoid touching power lines or circuits which could be fatal.

Failure to comply with the above warnings will void the Gateway warranty

and can create hazardous conditions.

External DC Power

In some cases, it is desirable to operate the

Gateway from an external DC power source

such as when external AC power is not

available or when using external solar power.

The Gateway requires 12-28V DC at 4W.

Power can be supplied using an outdoor-

rated DC power cable or via spare pairs in the

Ethernet cable (Passive PoE).

To use external DC power with a separate DC

power cable, remove the AC power cable as

described above and install an outdoor-rated

DC power cable through cable gland (1). Even with DC power, a safety ground connection is

recommended and should be connected to the chassis ground screw (2) . The DC power should

be connected to the DC power input screw terminals J1 (3). Polarity is not important.