StorCase Technology DX1-200-SW160-RH, DX1-200-SWC160-RH User Manual

DE100/DE200 Ultra160 Hot Swap/Repeater Isolator Board

DATA EXPRESS® DE100/DE200 ULTRA160 HOT SWAP/

REPEATER ISOLATOR BOARD

[This insert supplements the StorCase® Technology Data Express DE100i-SW160, DE100i­SWC160, DE200i-SW160, DE200i-SWC160, S20A102, and S20A108 User's Guides; it
provides specific information regarding the Ultra160 Hot Swap/Repeater Isolator Board. Refer
to the individual User's Guides for specific frame and carrier information.]

The DX1/200-SW160/RH Hot Swap/Repeater Isolator Board (Figure 1) is an upgrade attachment
for the DE100i-SW160 and DE200i-SW160 receiving frame, while the DX1/200-SWC160/RH
is an upgrade attachment for the DE100i-SWC160, DE200i-SWC160, S20A102, and S20A108
receiving frame. This attachment provides a bus-isolating hot swap feature as described
below.

Bus-Isolating Hot Swap Function

The Ultra160 DX1/200 boards allow installation, removal or exchange of Ultra160 DE100 and
DE200 carriers while the computer system is operating by monitoring and protecting the
computer system and other peripheral devices on the SCSI bus. The isolator board eliminates
the need to shut down the system when adding or removing a SCSI device by performing two
functions:

1. Delays power up/down of the drive until the time period between SCSI bus cycles.
This prevents the interruption of any SCSI bus activity being done by other devices
on the bus.

2. Prevents drive power sequencing from generating noise on the SCSI bus, thus
preventing data transfer corruption on other devices.

Please note that, whereas UNIX and Apple-based systems provide mount/dismount drive
commands, most PC systems do not provide such a feature. When using one of these operating
systems, it may be necessary to reboot the computer after adding or changing a drive. This
reboot activity will force the SCSI host adapter to re-scan its SCSI bus for physically attached
drives, and will then be able to access the new or changed drive.

Attaching the Isolator Board

The DE100i-SW160, DE100i-SWC160, DE200i-SW160, DE200i-SWC160, S20A102, and
S20A108 may be purchased with the isolator board factory-installed. If the board has not
already been attached to the Data Express receiving frame, follow the instructions below to
add the board. Otherwise, proceed to the section "Using the Isolator Board" for usage
instructions.

D89-0000-0125 Rev. C00 StorCase Technology, Inc.

DE100/DE200 Ultra160 Hot Swap/Repeater Isolator Board

Installation Instructions for DX1/200-SW160/RH

1. Remove jumpers on J4 Pins 7 & 8, and Pins 9 & 10 from the DE100i-SW160 (or DE200i­SW160) receiving frame motherboard (Figure 2).

NOTE: Save these jumpers! These jumpers are required when the isolator

board is not installed.

2. Remove the two (2) screws on the receiving frame motherboard.

NOTE: Save these screws for Step 5!

3. Attach two (2) stand-offs (included) to the mounting holes on the receiving frame
motherboard (Figure 3).

4. Carefully align the connectors of the isolator board with the connectors on the
receiving frame motherboard and gently push the board into position. Make certain
that all connectors are properly mated.

5. Secure the board to the receiving frame stand-offs with the same two (2) screws
from Step 2 (Figure 3).

DX1/200-SW160/RH

Isolator Board Detail

0501a

DX1/200-SW160/RH

Isolator Board

DE100 or DE200

(Ultra160 Only)

Receiving Frame

Motherboard

Figure 1: DX1/200-SW160/RH Isolator Board Details

D89-0000-0125 Rev. C00 StorCase Technology, Inc.