Hardware Monitoring; Backup Power Supplies - Alcatel-Lucent OmniSwitch 6855-24 Hardware User's Manual

OmniSwitch OS6855 Family

Hardware Monitoring

Automatic Monitoring
Automatic monitoring refers to the switch's built-in sensors that automatically monitor operations. If an
error is detected (e.g., over-threshold temperature), the switch immediately sends a trap to the user. The
trap is displayed on the console in the form of a text error message. (In the case of an over-threshold
temperature condition, the chassis displays an amber OK LED in addition to sending a trap.)
LEDs
LEDs, which provide visual status information, are provided on the chassis front panel. LEDs are used to
indicate conditions such as hardware and software status, temperature errors, link integrity, data flow, etc.
For detailed LED descriptions, refer to
Components."
User-Driven Monitoring
User-driven hardware monitoring refers to CLI commands that are entered by the user in order to access
the current status of hardware components. The user enters "show" commands that output information to
the console. Monitoring information for chassis components, such as the optional back up power supply,
chassis temperature sensor, and chassis fans is provided in
and Hardware Components."
OmniSwitch CLI Reference Guide.

Backup Power Supplies

OmniSwitch 6855 switches support an optional backup power supply. Backup power supplies operate in
active standby mode. If the primary power supply fails unexpectedly, the backup power supply automati-
cally takes up the full power load without disrupting the switch.
The primary and backup power supplies for all OmniSwitch 6855 models are external. The power supplies
for OS6855-U10 and OS6855-14 models come in the form of a power "brick." The Power over Ethernet
(PoE) brick is separate from the main chassis power supply and is only required if the PoE capabilities of
the switch are in use.
Additional Power Supply Details
For OS6855-24 and OS6855-U24 models, a power shelf is provided with the unit. It can slide into the rear
of the chassis and is used to hold the primary and the backup power supplies.
Any power supply can be remotely connected using a cable. With this configuration, the same power shelf
can be mounted in the rack using a mounting bracket (provided with the unit). This allows the
OmniSwitch 6855 to be used in reduced depth areas such as wall-mounted cabinets, etc.
Note. For more information on power supplies, refer to
Hardware Components."
OmniSwitch 6855 Series Hardware Users Guide
Chapter 2, "OmniSwitch 6855 Series Chassis and Hardware
The show commands for all the features are described in detail in the
March 2009
Chapter 2, "OmniSwitch 6855 Series Chassis
Chapter 2, "OmniSwitch 6855 Series Chassis and
Availability Features
page 1-5