IBM 8685 Hardware Maintenance Manual - Page 122
Auxiliary-device (pointing device) port, Ultra160 SCSI connectors
UPC - 087944957171
View all IBM 8685 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 122 highlights
The following illustration shows the pin-number assignments for the keyboard port on the rear of your server. 6 4 2 5 3 1 Table 10. 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 Auxiliary-device (pointing device) port The system board has one auxiliary-device port that supports a mouse or other pointing device. The following illustration shows the pin-number assignments for the auxiliary-device port on the rear of your server. 6 4 2 5 3 1 Table 11. Auxiliary-device connector pin-number assignments Pin Signal 1 Data 2 Not connected 3 Ground 4 +5 V dc 5 Clock 6 Not connected Ultra160 SCSI connectors Your server has an integrated dual-channel Ultra160 small computer system interface (SCSI) controller. This controller supports two independent Ultra 160/m SCSI channels: one internal and one external. Each channel 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 parity checking, to significantly improve data reliability 112 xSeries 255 Type 8685: Hardware Maintenance Manual and Troubleshooting Guide