Hot-Swap SCSI Backplane
SR2300 2U Server Chassis Technical Product Specification
Intel Order Number A94546-004
42
6.4 SCA2 Hot-Swap Connectors
The SCSI Backplane provides seven hot-swap SCA2 connectors that provide power and SCSI
signals using a single connector. Each SCA drive attaches to the backplane using one of these
connectors.
Figure 25. 80-pn SCA2 Connector
6.5 Baseboard to SCSI Interconnect
A 68-pin SCSI cable is used to interface the SCSI backplane with either the on-board SCSI
channel of the server boards SE7500WV2 and SE7501WV2 or an add-in PCI SCSI controller
installed on the PCI riser card.
Figure 26. 68-pin SCSI Cable Connector
Table 19. Ultra2 (LVD) SCSI Connector Pin-out
Pin
Name
Pin
Name
Pin
Name
Pin
Name
1 +DB
(12) 18 TERMPWR 35 -DB
(12) 52 TERMPWR
2 +DB
(13) 19 RESERVED 36 -DB
(13) 53 RESERVED
3 +DB
(14) 20 GROUND 37 -DB
(14) 54 GROUND
4 +DB
(15) 21 +ATN
38 -DB
(15) 55 -ATN
5 +DB
(P1) 22 GROUND 39 -DB
(P1) 56 GROUND
6 +DB
(0)
23 +BSY
40 -DB
(0)
57 -BSY
7 +DB
(1)
24 +ACK
41 -DB
(1)
58 -ACK
8 +DB
(2)
25 +RST
42 -DB
(2)
59 -RST
9 +DB
(3)
26 +MSG
43 -DB
(3)
60 -MSG
10 +DB
(4)
27 +SEL
44 -DB
(4)
61 -SEL
11 +DB
(5)
28 +C/D
45 -DB
(5)
62 -C/D
12 +DB
(6)
29 +REQ
46 -DB
(6)
63 -REQ
Summary of Contents for SR2300 - FRONT BEZEL BLK
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