dt 3-Channel RAID EISA Cable Kits Installation Information Introduction

dt 3-Channel RAID EISA Cable Kits Installation Information Introduction
dt
EK-SWXCK-IN. B01
3-Channel RAID EISA Cable Kits
Installation Information
Introduction
The cable kit used with the first two 3-channel RAID EISA controllers consists of two internal
cables and the associated mounting hardware. One cable kit accommodates one 3-channel RAID
EISA controller. The SCSI port for channel 0 of the controller is on the rear bulkhead. The SCSI
ports for channels 1 and 2 are provided by installing this cable kit to allow connections to ports at
the rear of the system.
The maximum number of these internal cable kits that can be used is two. When more than two
3-channel RAID EISA controllers are installed, a cable kit with an internal dual-bus cable and an
external Y-cable must be used for channels 1 and 2 on the third and fourth controllers.
Table 1 lists the number of the 3-channel RAID EISA controller being installed and the cable kit
required for its installation.
Table 1: 3-Channel RAID EISA Controller Number and Required Cable Kit
3-Channel RAID EISA
Controller Number
Cable Kit
1
Internal cable kit
2
Internal cable kit
3
Internal dual-bus and external Y-cable kit
4
Internal dual-bus and external Y-cable kit
Installing the First and Second Internal Cable Kits
To install the first and second internal cable kits, refer to Figure 1 and the following procedure:
1.
Orient the IDC end of the first cable, as shown in the top panel of Figure 1, so that it aligns
with the channel 1 connector and insert the cable onto this connector on the 3-channel RAID
EISA controller.
2.
Repeat the procedure in step 1 for the second cable, connecting it to channel 2 on the 3-channel
RAID EISA controller.
3.
Insert the other ends of the cables through the slot in the bottom left of the cabinet, as shown
in the top panel of Figure 1, and route them to the rear connector slots (A through D).
© Digital Equipment Corporation 1995. All Rights Reserved.
Digital Equipment Corporation makes no representations that the use of its products in the manner
described in this publication will not infringe on existing or future patent rights, nor do the descriptions contained in this publication imply the granting of licenses to make, use, or sell equipment or
software in accordance with the description.
S2805
4.
Remove the cover plates from the rear connector slots that are to be used.
NOTE
The first cable kit should use rear connector slots A and B. The second cable
kit (if installed) should use rear connector slots C and D.
5.
Insert the cable connectors into the proper slots and fasten them with the screws provided as
shown in the bottom panel of Figure 1.
When these internal cable kits are installed, SCSI devices can be connected to the SCSI ports (A
through D) at the rear of the system in addition to the system bulkhead port.
Figure 1: Installing the First and Second RAID Cable Kits
Left Side
Rear
(Right Side)
A
B
Screws (2)
C
D
MLO-012343
2
Installing the Third and Fourth Internal Dual-Bus and External Y-Cable Kits
To install the internal dual-bus and external Y-cable kits, refer to Figure 2, Figure 3, and the
following procedure:
1.
Orient the internal dual-bus cable, as shown in Figure 2, and insert the short cable connector
into the internal channel 1 connector on the 3-channel RAID EISA controller.
2.
Insert the long cable connector into the internal channel 2 connector on the 3-channel RAID
EISA controller.
3.
Attach the 68-pin bulkhead connector to the system bulkhead and tighten the screw.
Figure 2: Installing the Internal Dual-Bus Cable
Internal Dual-Bus
Cable (17-03998-01)
Screw
Bulkhead
Connector
Internal
Channel 0
Internal
Channel 1
Internal
Channel 2
3
MR0227
4.
Refer to Figure 3 and connect one end of the BN21H cable to the SCSI port for channel 0 of the
3-channel RAID EISA controller on the system bulkhead.
5.
Connect the other end of the BN21H cable to storage shelf 0.
6.
Connect the single end of the Y-cable to the bulkhead connector of the internal dual-bus cable,
located on the system bulkhead.
7.
Connect the channel 1 end of the Y-cable to storage shelf 1.
8.
Connect the channel 2 end of the Y-cable to storage shelf 2.
Figure 3: Installing the External Cables
To Storage Shelf 2
To Storage Shelf 1
Y-Cable
(17-04000-02)
To Storage Shelf 0
BN21H Cable
Channel 1 and 2
Bulkhead
Connector
Internal Dual-Bus
Cable (17-03998-01)
External
Channel 0
External
Channel 0
Internal
Channel 0
Internal
Channel 1
Internal
Channel 2
MR0228A
4
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