Digi X2 User Manual

Page 226

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(DHCP) server. But if the DHCP server is unavailable or nonexistent, Auto-IP will

assign the device an IP. If DHCP is enabled or responds later or you use ADDP, both

will override the Auto-IP address previously assigned. Also referred to as Auto-IP.

CDMA

CDMA (Code-Division Multiple Access) protocols are used in wireless

communications. CDMA is a form of multiplexing, which allows numerous signals to

occupy a single transmission channel, optimizing the use of available bandwidth. The

technology is used in ultra-high-frequency (UHF) cellular telephone systems in the

800-MHz and 1.9-GHZ bands and through an analog-to digital conversion enhances

privacy and makes cloning difficult.

CLI

Command-line interface.

COM port redirection

The process of establishing a connection between the host and networked serial devices

by creating a local COM or TTY port on the host. See also RealPort.

configuration management

For Digi devices, configuration management involves managing the files and settings

that contain device configuration information. Configuration management tasks include

copying device configuration files to and from a remote host, upgrading device

firmware, and resetting the device configuration to factory defaults.

coordinator

In Mesh/ZigBee networks, a coordinator is node that has the unique function of forming

a network. The coordinator is responsible for establishing the operating channel and

PAN ID for an entire network. Once established, the coordinator can form a network by

allowing routers and end devices to join to it. Once the network is formed, the

coordinator functions like a router (it can participate in routing packets and be a source

or destination for data packets). Characteristics of coordinators include:

One Coordinator per PAN

Establishes/Organizes PAN

Can route data packets to/from other nodes

Can be a data packet source and destination

Mains-powered

In the web interface, a coordinator is also referred to as a gateway device.

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