Dell POWEREDGE 1855 User Manual download pdf (Page 18)

Table 1-13. Gb Pass-ThroughModuleIndicators

System Features

l Support for up to ten server modules. The chassis can support from one to ten server modules. If fewer than ten server modules are installed in the

chassis, a blank module is used. Blank modules are required for proper cooling.

l DRAC/MC, which provides access to systems management software features.

¡ To access systems management features, connect the null modem cable provided with the system between the serial management port and an

external PC. You may also obtain system management information through a Web browser connected to the RJ-45 management port. Systems

management software monitors the system and server module status.

¡ Embedded systems management circuitry that monitors operation of the system fans, and critical system voltages and temperatures. The

systems management circuitry works in conjunction with your systems management software.

l Support for I/O connectivity including pass-through modules and network switch modules. Optional daughter cards installed in the server modules

enable the I/O connectivity.

l Two hot-pluggable system fan modules. Each fan module has two replaceable fans.

l Four 2100-watt, hot-pluggable, redundant power supplies. Two power supplies provide power to the system; two additional power supplies provide

redundancy.

l Four 1200-watt, hot-pluggable, redundant power supplies (not available after April 2005). Three power supplies provide power to the system; an

additional power supply provides redundancy.



Server Module Features

l One or two Intel®Xeon™microprocessorswithaninternaloperatingspeedofatleast2.8GHz,a1-MB cache, and a front-side (external) bus speed of

800 MHz.

NOTE: Connectors on the Gb pass-through module correspond directly to the server module number. For example, server module 5 is connected to port

5 on the Gb pass-through module.



Indicator Type



Activity

Indicator



Indicator Code

Link indicator/activity

indicator



Green/amber

blinking

The Gb Ethernet connector is linked to the server module and there is network activity

Green/off

The Gb Ethernet connector is linked to the server module and there is no network activity.

Off/amber blinking

The Gb Ethernet connector is not linked to the server module and there is network activity.

Off/off

The Gb Ethernet connector is not linked to the server module and there is no network activity.

Status indicator



Off

Module is operating normally.

Green blinking

Module is identified as a being powered down by the DRAC/MC controller due to an I/O module mis

match.



NOTE: Remove only one power supply at a time. The power supply modules assist in cooling the system. If a power supply fails, keep the power supply

module in the chassis because the fans in it continue to cool the chassis. For more information on installing power supply modules, see your Installation

and Troubleshooting Guide.

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