9W006 and 9W007 29
H
ARDWARE
O
VERVIEW
SmartSwitch Remote Access Module Hardware
SMB LED
The SMB LED is an indicator for the System Management Buses (SMB-1). This is a 1Mbps
management bus located within the SmartSwitch 9000. It is utilized by all diagnostic controllers in
the system. These include connectivity modules, power supply modules, and the environmental
module. The SMB-1 transports inter-chassis information between system components, such as
power and environmental information, as well as diagnostic messages. Periodic loop-back tests are
performed by all modules that share this bus (which includes the SmartSwitch Remote Access
Modules) to ensure the validity of SMB-1.
The functions of the SMB LED are listed in the following table.
P
OWER
LED
The power LED provides information regarding the module power status. The functions of the
power LED are listed in the following table.
E
THERNET
1 & 2 A
CTIVITY
LED
S
The Ethernet 1 and 2 LEDs illuminate when the integrated Ethernet controller has activity on either
the transmitting or receiving lines for that channel.
The functions of the Ethernet 1 and 2 LEDs are listed in the following table.
LED Color
Description
green
fully operational
red
normal power-up reset
off
module powered off
LED Color
Description
green
powered on
off
module powered off
LED Color
State
green
activity on the indicated Ethernet line (1 or 2)
off
no activity on the indicated Ethernet line (1 or 2)
