12CCM4850 Installer/User Guide

The Power parameter instructs the CCM appliance to monitor the state of a specified control signal. Signal transitions may be configured to trigger SNMP traps. The parameter value indicates an inbound control signal (CTS, DCD or DSR) and the state of that signal (low or high). When the defined signal is true, the CCM appliance interprets it as a power on condition for the attached device; when the signal is false, a power off condition for the device is assumed. The signal specified for flow control may not be used for power control, and vice versa.

To configure serial port settings:

Issue a Port Set command. You may specify settings for one or all ports.

PORT [<port>ALL] SET [NAME=<name>] [BAUD=<baud>] [SIZE=<size>] [PARITY=<parity>] [STOP=<stop_bits>] [FLOW=<flow_ctrl>] [TIMEOUT=<time-out>] [SOCKET=<socket>] [CHAR=^<cli_char>] [TOGGLE=NONEDTR] [POWER=<signal>]

For more information and descriptions of all valid parameters, see Port Set command on page 45.

To display serial port settings:

Issue a Show Port command.

SHOW PORT [<port>ALLNAMES]

The display includes configuration information, current power status (if power status monitoring has been enabled), plus transmit, receive and error counts. When you request information about a single port and a user is currently accessing that port, the display also includes the username, access rights and other information about the current session.

When you request information about port names, the display includes the port numbers and names. If a port’s name has not been changed with a Port Set command, the logical name is displayed.

For more information, see Show Port command on page 59.

Connecting to Serial Devices

The CCM appliance offers several methods for connecting to attached serial devices: Telnet, serial CLI, PPP and SSH.

Connecting to devices using Telnet

Each CCM serial port is directly addressable through a unique TCP port that provides a connection to the attached serial device.

Plain text (non-encrypted) Telnet connections are enabled by default. For information about enabling both plain text Telnet and SSH connections, Enabling plain text Telnet and SSH connections on page 18 and Server Security command on page 53.

You may access the CCM appliance and its ports using Equinox-provided or third party Telnet client applications. Third party Telnet applications may be used in combination with AVWorks software or standalone.