IBM 8669 - Eserver xSeries 342, Руководство по техническому обслуживанию аппаратной части

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The following table shows the pin-number assignments for the keyboard connector
on the rear of the server.
6
4
2 1
3
5
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
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 the server.
6
4
2
1
3
5
Pin Signal
1 Data
2 Not connected
3 Ground
4 +5 V dc
5 Clock
6 Not connected
Ultra 160 SCSI ports
The server has an integrated dual-channel Ultra 160 small computer system
interface (SCSI) controller. This controller supports two independent Ultra 160 SCSI
channels: one internal and one external. Each of these channels supports up to 15
SCSI devices. In addition, this controller uses:
v Double-transition clocking to achieve high transfer rates
v
Domain name validation to negotiate compatible data transfer speeds with each
device
v Cyclic-redundancy checking (CRC), instead of the usual parity checking, to
significantly improve data reliability
v An active terminator on the system board for SCSI bus termination
Installing options
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