IBM 8668 Hardware Maintenance Manual - Page 103
Cabling the server, Cabling the tower model
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Table 9. 68-pin SCSI connector pin-number assignments (continued) Pin Signal Pin Signal 23 +Busy 57 -Busy 24 +Acknowledge 58 -Acknowledge 25 +Reset 59 -Reset 26 +Message 60 -Message 27 +Select 61 -Select 28 +Control/Data 62 -Control/Data 29 +Request 63 -Request 30 +Input/Output 64 -Input/Output 31 +Data 8 65 -Data 8 32 +Data 9 66 -Data9 33 +Data 10 67 -Data 10 34 +Data 11 68 -Data 11 Cabling the server When you cable the server, be sure to route the power cables and mouse and keyboard cables through the cable-restraint bracket on the rear of the server. Note: The illustrations in this document might differ slightly from your hardware. Cabling the tower model The following illustration shows how to route cables through the cable-restraint bracket on the rear of the tower model. Serial A Serial B Mouse Keyboard Ethernet Universal Serial Bus (USB) 1 and 2 ISM-A and B Management (not supported) Video Cable-restraint bracket Note: ISM ports (ISM A and B) are used for the RS-485 interconnect network communications. Installing options 95