StorCase Technology S20A130 User Manual

S20A130 S20A130

Connecting the DE300 with Repeater Board to the System

Connect the I/O Cable from the host adapter to the Repeater Board (Figure 4). The Pin 1
indicator on the cable must be properly aligned.

NOTES: No onboard termination provided on the DE300. External termination must be

provided.
Up to five (5) DE300s with Repeater Boards may be daisy-chained together

(maximum 15 devices per SCSI channel).
Maximum total (external and internal) cable length cannot exceed 39ft (12m).

DE300s with Repeater Boards

Crimped-On

Terminator

300_4

Internal SCSI I/O Cable

Connect

to Host

S20A130

Repeater Board
for 68-Pin Ultra160 DE300

[This insert supplements the StorCase® Data Express® DE300i-SW160, S20A120 (cable­less 68-pin DE300), and S20A133 (cable-less 68-pin DE300 with Blowers) User's Guides.]

The DE300 Ultra160 Repeater Board (P/N S20A130) is an upgrade attachment for the
DE300i-SW160, S20A120, and S20A133 receiving frame (Figure 1). This attachment
provides a repeater feature as described below.

NOTES: Up to five (5) DE300s with Repeater Boards may be daisy-chained together

(maximum 15 devices per SCSI channel).
Maximum total (external and internal) cable length cannot exceed 39ft (12m).

300_2

Figure 4: Typical DE300 with Repeater Board Configuration

Certification

EMI Standard: FCC Part 15 Class B, CE CISPR B, C-Tick
EMC Standard: EN55022, EN55024, EN50081

FCC Certification

This device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the
FCC rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received; including interference that may cause undesired
operation.

CE and C-Tick Notice

The official CE and C-Tick symbols indicate compliance of this StorCase product to the EMC directive of the European
Community and Australian Communications Authority respectively.

Declarations of CE and C-Tick Conformity in accordance with the required standards have been made and are on file at
StorCase Technology; a copy of Declaration of Conformity is available in the full version of the product user s guide.

Repeater Function

All StorCase Technology SCSI removable enclosures adhere strictly to SCSI specifica­tions. These products are typically installed into storage system configurations which con­tain a variety of components (such as cables, terminators, and connectors), which may
have varying SCSI characteristics when used together in some configurations.

To minimize these unpredictable effects caused by varying system specifications, StorCase
recommends the Data Express Repeater Board on all Ultra160 Data Express receiving
frames. The StorCase Data Express Repeater Board has been shown to resolve issues
associated with combining system components designed for different SCSI technologies
(single-ended or LVD) and/or by different manufacturers. For more information and data,

Figure 1: S20A130 Repeater Board

please refer to the Repeater Board Benefits and Downward Compatibility technical papers
on our web site at: http://www.storcase.com/tools

StorCase Technology, Inc. D89-0000-0157 Rev. A01 D89-0000-0157 Rev. A01 StorCase Technology, Inc.

S20A130 S20A130

1

Remove screws (save these

screws for Step 2) and replace

with stand-offs (provided)

Carefully install repeater board.

Secure with the same screws

saved from Step 1.

2

DE300 Receiving Frame with

Repeater Board Installed

300_1

Assembling the Repeater Board

The S20A130 Repeater Board is shipped with the 4-drop cable uninstalled. The cable must
be installed onto the Repeater Board before use.

1. Line up the connectors on the 4-drop cable with the connectors on the Repeater Board
(Step 1 of Figure 2). The Pin 1 indicator on the cable must be properly aligned.

2. Carefully mate all four (4) connectors on the cable with their respective connectors on
the Repeater Board (Step 2 of Figure 2).

1

2

300_5

Figure 2: Installing the 4-drop Cable onto the Repeater Board

4. Secure the board to the receiving frame stand-offs with the same two (2) screws saved
from Step 2 above.

Attaching the Repeater Board

The DE300i-SW160, S20A120, and S20A133 may be purchased with the Repeater Board
factory-installed. If the board has not already been attached to the receiving frame, follow
the instructions below to add the board.

NOTE: The device carriers should be locked into the receiving frame prior to the

1. Remove the two (2) screws from the receiving frame motherboard and set aside (Step
1 of Figure 3A).

2. Attach the two (2) stand-offs (provided) to the mounting holes on the receiving frame
motherboard (Step 1 of Figure 3A).

3. Carefully align the three connectors of the repeater board with the connectors on the
receiving frame motherboard and gently push the board into position. Make certain
that ALL connectors are properly mated (Step 2 of Figure 3A).

CAUTION: Make sure JP1 Pins on Repeater Board (Figure 3B) are lined up with

StorCase Technology, Inc. D89-0000-0157 Rev. A01

following procedure to maintain proper connector alignment between the
receiving frame and device carriers.

the Receiving Motherboard connector before pushing the Repeater
Board into position! Failure to line up pins properly can result in bent
or damaged pins!

Figure 3A: Installing the Repeater Board

JP1

Pins

300_6

Figure 3B: JP1 Location

D89-0000-0157 Rev. A01 StorCase Technology, Inc.