
SNC 6101 User’s Guide 9
LED Indicators
LEDs on the SNC 6101 front panel provide status and activity indicators for the SNC 6101 and its interface
devices. Figure 2
below provides the names and locations of these LED indicators.
Figure 2 Front Panel LEDs
SCSI ports
(SCSI 1,
SCSI 2,
SCSI 3,
SCSI 4)
Four Ultra-320 Low Voltage Differential/Single-Ended (LVD/
SE) SCSI channels with internal termination are available.
These channels have automatic speed and width negotiation
capability for wide or narrow bus widths and standard, fast,
Ultra, Ultra2, Ultra3 or Ultra320 speeds. These parameters can
be viewed from the ADIC Management Console.
Service port
(null
modem)
The service port is an RS-232 (DTE) connection with a 9-pin D-
shell. It connects to the host serial port through a null-modem
cable compatible with serial ports on personal computers. The
service port allows access to a shell interface for local service
and diagnostics.
Ethernet
ports
(RJ-45 1,
RJ-45 2)
The two 10/100 Base-T Ethernet ports with RJ-45 connectors
can be connected to a network switch or router by means of an
unshielded twisted-pair Ethernet cable. The Ethernet ports
comply with the IEEE 802.3 specification.
At the time of this printing, Ethernet port #2 is disabled
internally.
FC 1
FC 2
For each FC Channel, the LED is ON when the channel is connected to a
live Fibre Channel and OFF when the channel is not connected. It flashes
with channel activity.
SCSI 1
SCSI 2
SCSI 3
SCSI 4
For each SCSI channel, the LED will be OFF when no devices have been
detected on the port and ON when a target is available. It flashes when
there is activity on the channel and returns to the OFF state if the channel
is reset.
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