Auxiliary-Device (Pointing Device) Port; Ultra3 Scsi Ports - IBM Netfinity 4500R User Reference Manual

Pin I/O
4 N/A
5 I/O
6 N/A

Auxiliary-device (pointing device) port

The system 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 your server.
Pin
1 Data
2 Not connected
3 Ground
4 +5 V dc
5 Clock
6 Not connected

Ultra3 SCSI ports

Your server has an integrated dual-channel Ultra3 small computer system interface
(SCSI) controller. This controller supports two independent Ultra 160/m SCSI
channels. Both channels are internal. Each of these channels supports up to 15 SCSI
devices. In addition, this controller uses:
• Double-transition clocking to achieve high transfer rates
• Domain name validation to negotiate compatible data transfer speeds with each
device
• Cyclic-redundancy checking (CRC), instead of the usual parity checking, to
significantly improve data reliability
• An active terminator on the system board for SCSI bus termination
Signal
+5 V dc
Keyboard clock
Reserved
Table 8. Keyboard connector pin-number assignments
6 5
4 3
1
2
Signal
Table 9. Auxiliary-device connector pin-number
assignments
Input/Output ports
Chapter 6. Installing Options
97