16
The serial port connector requires a null-modem F/F DB9 cable. The pins on the switch RS-232 connector
(Figure 6) are identified in Table 2. For information about connecting the workstation through the serial
port, see ”Connect the management station or workstation to the switch” (page 41).
Power supplies and fans
The SN6000 Fibre Channel Switch—Single Power Supply has a single power supply that converts
100–240 VAC to DC voltages for the various switch circuits. Internal fans provide cooling. The switch
monitors internal air temperature, and therefore does not monitor or report fan operational status. Air flow
is front-to-back. To energize the switch, plug the power cord into the switch AC receptacle and into a
100–240 VAC power source.
The SN6000 Fibre Channel Switch—Dual Power Supply has two hot-pluggable power supplies that
convert standard 100–240 VAC to DC voltages for the various switch circuits. Each power supply has an
AC power receptacle and two status LEDs (Figure 7):
• The Power Supply Status LED (green) illuminates to indicate that the power supply is receiving AC
voltage and producing the proper DC voltages.
• The Power Supply Fault LED (amber) illuminates to indicate that a power supply fault exists and requires
attention.
Figure 7 SN6000 power supplies
Table 2 Serial port pin identification
Pin Number Description Referred to as
1 Carrier Detect DCD
2Receive Data RxD
3 Transmit Data (TxD) TxD
4 Data Terminal Ready (DTR) DTR
5 Signal Ground (GND) GND
6 Data Set Ready (DSR) DSR
7 Request to Send (RTS) RTS
8 Clear to Send (CTS) CTS
9Ring Indicator (RI)RI
1 Power supply 1 2 Power supply 2
3 Fault LED (amber) 4 Status LED (green)
5 AC power receptacle
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