User Manual

Gateway - QSG

Power

AC Mains Power

The Gateway typically operates from

mains power, either 110-120V AC or

220-240V AC 50Hz or 60Hz. The

voltage selection (120 or 240vac) is a

factory option and is indicated on the

main board.

An outdoor-rated (UV stabilized) AC

cable connects power to the gateway

through a waterproof cable gland. The

AC cable must be connected to a

grounded outlet.

WARNING: failure to connect or

bypassing the chassis

ground can result in

extremely dangerous

conditions. Observe all local

electrical code requirements; consult

with a licensed electrician if in doubt.

The AC cable connects to screw

terminals on the main board beneath

the black aluminum safety shield. The

AC ground wire connects to the

chassis ground.

The AC safety shield helps prevent

accidental access to AC mains

voltages. The AC cable is field

replaceable, but cable replacement

should only be performed by qualified

personnel and only with AC power off

and disconnected.

The safety shield mounts to the main board with 4 locking feet and is secured with a single

machine screw through the Saftey Shield Lock. This screw also grounds the safety shield; a

stainless-steel screw and lock washer must be used to ensure proper grounding of the safety

shield. The safety shield should not be removed while AC power is connected to the Gateway.

Note that the AC shield also serves as the AC heater and may be hot.

To remove the AC cable:

1. Loosen the safety shield lock screw but do not remove it.

2. Grasp the AC safety shield on both sides and slide it towards the top of the chassis

3. Lift the AC safety shield straight up so the locking feet clear the slots in the main board

4. Disconnect the heater connector if present

5. Remove the AC safety shield and heater assembly from the chassis.

6. Loosen the AC screw terminal connections

7. Loosen the AC cable gland

8. Remove the AC cable