Dell POWEREDGE 1855 - Manual (Page 16)

The PowerConnect 5316M Ethernet switch module is hot-pluggable. To provide connectivity into separate Ethernet networks, two switch modules can be
installed in bays I/O 1 and I/O 2 (see
Figure 1 -5 ). I/O bays 3 and 4 require that you install a Gb Ethernet daughtercard in the server module. If redundancy is
not required, you must install the switch module in I/O 1 bay. The switch module has an internal serial port that communicates with the DRAC/MC module.
Table 1 -11 lists the indicators on each switch module. For additional information about the PowerConnect 5316M Ethernet switch module, see the
documentation provided with the module.
Figure 1-12. PowerConnect 5316M Ethernet Switch Module Indicators and Features
Table 1-11. PowerConnect 5316M Ethernet Switch Module Indicators
Fibre Channel Pass-Through Module
The Fibre Channel pass-through module provides a bypass connection between the Fibre Channel daughter card in the server module and optical transceivers
for direct connection into a Fibre Channel switch or a storage array. (see
Figure 1 -13 ). The Fibre Channel pass-through modules are hot-pluggable. The Fibre
Channel pass-through module in I/O bay 3 connects to port 1 on the optional Fibre Channel daughter card installed in a server module. The Fibre Channel
pass-through module in I/O bay 4 connects to port 2 on the optional Fibre Channel daughter card installed in a server module. To provide redundancy, both
I/O bay 3 and I/O bay 4 must have Fibre Channel pass-through modules installed.
Table 1 -12 lists the functionality of the Fibre Channel pass-through module
indicators. For additional information on installing or troubleshooting this module, see your Installation and Troubleshooting Guide.
Figure 1-13. Fibre Channel Pass-Through Module Indicators and Features
Indicator Type Activity
Indicator Indicator Code
Speed/link activity indicator (bicolor) Off Not connected.
Green The port is connected to a valid link partner on the network.
Green blinking Network data is being sent or received at 1 Gb.
Amber The port is connected to a valid link partner on the network.
Amber blinking Network data is being sent or received at 10 Mb or 100 Mb.
Duplex mode indicator Green The port is operating at full duplex mode.
Off The port is operating at half duplex mode.
System/diagnostic indicator Green blinking Module is being powered down by the DRAC/MC controller due to an I/O module mis match.
Off Module is operating normally.
NOTE: The Fibre Channel pass-through module includes Short Wave Small Form Factor Pluggable (SFP) optical transceivers. To ensure proper
functionality, use only the SFPs supplied with this module.