User's Manual

TDC
-1345-000 GasGate™ Remote Disconnect (RD) Installation Guide 1
Proprietary and Confidential
The Itron wireless GasGate Remote Disconnect (RD) valve is an integrated, remotely-controlled, gas shut-off
that completely stops the flow of natural gas into a residential or commercial structure. The GasGate operates
as a standalone gas control device that co-exists with gas meters to monitor and remotely-control natural gas
supply.
The GasGate is controlled using secure commands that place the valve into a closed or open position.
Operational commands are sent through a ChoiceConnect Fixed Network or using a ChoiceConnect mobile or
handheld programming device.
The GasGate is made up of two separate chambers, the gas chamber and the electronic chamber. The gas
chamber employs a mechanism that can shut off the flow of gas with a remote command. A special hardware
tool—the GasGate valve tool—is required to re-engage the gas flow mechanism. The mechanism will not re-
engage without a certified technician sending a wireless command to enable re-engagement and using the
valve tool to physically open the valve. In the event that someone jams the mechanism open, the system
reports the valve tamper. The electronics chamber houses the monitoring and wireless radio circuitry. The
chamber is protected by a tamper plug over one of the four fasteners. In the event the electronics chamber is
compromised, the GasGate generates at least one tamper flag.
The GasGate can be installed in any horizontal or vertical orientation that locates the mounting seal in an
upright position and that facilitates gas flow in the proper direction. Locating the mounting seal in an upright
installation orientation ensures optimum battery life and helps keep debris from accumulating on the seal
surface (for installation information, see Installing the Itron GasGate RD on page 4).
GasGate RD System Security
GasGate RD remote-controlled valves feature ChoiceConnect system security to ensure operational
commands are sent over a secure network. Commands that control the valve state are authenticated and
secured using the Itron Security Manager. GasGate RD security keys are injected into the device at the time
they are manufactured. The GasGate RD valves ship from the factory in a decommissioned state.
Transmission Modes
The GasGate can be set to transmit in fixed network, or mobile/handheld mode.
• Fixed Network Mode. The Fixed Network bubble up (BuP) message is a proprietary ChoiceConnect
network BUP message. The GasGate RD system supports two BUP message types and two-way
commands.
• Normal BUP.
• Alarm BUP. If a critical alarm is detected, the GasGate RD device enters an alarm state and transmits
the alarm details. An alarm state causes the following events:
C HAPTER 1
About the Itron GasGate RD
™