Crestron CP3N Technical Information PDF herunterladen (Seite 32)

Reference Guide Crestron 3-Series Control Systems

28 • 3-Series Control Systems Reference Guide – DOC. 7150A

Control Subnet

The AV3, PRO3, and CP3N (referred to as “control system” for the rest of this

section) have a dedicated Control Subnet which allows for dedicated communication

between the control system and Crestron Ethernet devices without interference from

other network traffic on the LAN.

The

Control Subnet can host up to 64,000 Crestron Ethernet devices. Connect a

Crestron Ethernet switch such as the CEN-SWPOE-16 16-Port Managed PoE Switch

(sold separately) to the control system’s CONTROL SUBNET port to use as a

connection point for a variety of Crestron Ethernet devices. The CONTROL

SUBNET port is used to communicate with Crestron Ethernet devices on a subnet

that is independent of the local area network connected to the LAN port. When using

the Control Subnet, observe the following:

• The control system acts as a DHCP server to all devices connected to the

Control Subnet and assign IP addresses as needed.

• A DNS server is built in to the control system to resolve host names.

• Only Crestron Ethernet devices should be connected to the Control Subnet.

The control system can operate in Isolation mode. Take the following into account

when operating in Isolation mode:

• Devices on the Control Subnet do not have access to any resources on the

LAN side. This means that if a touch screen with a smart object that

requires Internet access is installed on the Control Subnet operating in

Isolation mode, the smart object cannot work.

• Devices on the LAN do not have access to any devices on the Control

Subnet. This includes Crestron Toolbox when it is connected to the LAN.

To configure devices on the Control Subnet with Crestron Toolbox, the PC

running Crestron Toolbox must be physically connected to the Control

Subnet.

• Any NAT/Portmapping rules that were previously created do not work

when the control system is in Isolation mode.

CAUTION: Do not connect the CONTROL SUBNET port to the LAN. The

CONTROL SUBNET port must only be connected to Crestron Ethernet devices.

NOTE: If the control system is operating in Isolation mode, Crestron Ethernet

devices that require Internet access should not be connected to the CONTROL

SUBNET port (either directly or indirectly). Any Crestron Ethernet device that

requires an Internet connection should be connected to the local area network.

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Crestron CP3N Technical Information Seite 32