Installing options
85
Auxiliary-device (pointing device) port
The I/O board has one auxiliary-device port that supports a mouse or other pointing
device.
The following table shows the pin-number assignments for the auxiliary-device
connector on the rear of the server.
Ultra2 SCSI ports
The server comes with an IBM ServeRAID controller. This controller provides three
independent SCSI channels. A 16-bit (wide) LVD SCSI cable connects the hard disk
drive backplane to one channel of the RAID controller. Two 68-pin SCSI connectors
for two additional channels are on the rear of the server. Refer to “Chapter . Installing
and configuring ServeRAID controllers,” on page 139.
The server has a dual-channel Ultra-2 small computer system interface (SCSI)
controller. This controller supports two independent SCSI channels: one external and
one internal. Each of these channels supports up to 15 SCSI devices. You can use the
external LVD SCSI channel connector, on the rear of the server, to connect different
types of SCSI devices, such as drives or printers.
Table 12. Keyboard connector pin-number assignments .
Pin
I/O
Signal
1
I/O
Data
2
N/A
Reserved
3
N/A
Ground
4
N/A
+5 V dc
5
I/O
Keyboard clock
6
N/A
Reserved
Table 13. Auxiliary-device connector pin-number assignments .
Pin
Signal
1
Data
2
Not connected
3
Ground
4
+5 V dc
5
Clock
6
Not connected
6
4
2
1
3
5
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