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Chapter 5: Local Management
5-28 2H23-50R/2H33-37R User’s Guide
5.7.10 Configuring the COM Port
Upon power up, the COM port is configured to the default settings of
ENABLED and LM.
The COM port supports the following applications:
• Local Management connections
• American Power Conversion (APC) Uninterruptible Power Supply
(UPS) connections
To configure the COM port, proceed as follows:
1. Use the arrow keys to highlight the Com field.
2. Press the SPACE bar to choose either ENABLED or DISABLED.
The COM port must be enabled to use it for Local Management or
UPS applications. Select DISABLED to disable the COM port for
additional device security.
3. Use the arrow keys to highlight SAVE. Press ENTER.
!
CAUTION
Before altering the COM port settings, ensure that the
2H23-50R or 2H33-37R is set with a valid IP address. (Refer to
Section 5.7.1, Setting the IP Address.) Read this entire COM
port configuration section before changing the settings of the
COM port.
!
CAUTION
Do NOT disable or alter the settings of the COM port while
operating the current Local Management connection through a
terminal. Altering the COM port settings disconnects the Local
Management terminal from the port, and ends the Local
Management session. If the 2H23-50R or 2H33-37R was
previously assigned a valid IP address, reenter Local
Management by establishing a Telnet connection to the device.
If the device does not have a valid IP address and the COM
port has been disabled or the settings changed, reset NVRAM
using mode switch 7 on the 2H23-50R or 2H33-37R (refer to
Appendix C) to reestablish COM port communications.