StorCase Technology S20A133 - Manual (Page 13)

6 Introduction
StorCase Technology, Inc. S20A133 User's Guide - Rev. A02
Figure 5: Receiving Frame Motherboard (Rear View)
DC Power
Connector
J3A1
J3B1
J3C1
Jumpers
(Factory-Installed)
68-pin SCSI
I/O Connector
= Pin 1
Drive B
Drive C
Drive A
0503e
1
21
1
21
1
21
Blower
Vent
Buzzer Enable Jumper
(Factory-Installed on J3A1 Only!)
Anode Cathode
P11 P12
Remote
Activity LED
SCSI ID0
SCSI ID1
SCSI ID3
SCSI ID2
Receiving Frame Rear Panel
(Figure 5)
DC Power Connector (P1): The Data Express uses a standard 4-pin DC power connector to
accept DC power.
I/O Connectors (Drive A, Drive B, Drive C): The input/output connector provides a standard
interface for 16-bit wide SCSI signals.
Option Pins (J3A1, J3B1, J3C1)
Remote Unit ID Selection: Pins 1-8 of these connectors are provided for remote
unit SCSI ID selection through the computer system. Remote ID selection requires that
the unit ID switch located on the inside of the receiving frame be set to "0" (device ID
selection is set with a switch located on the inside of the receiving frame as shown in
Figure 9). See Table 1 for J3 pin assignments.
Remote Activity LED: Pins 11 & 12 are used for a remote LED device activity indicator.
Jumpers: Installed at the factory - Do not remove!
Blower Vent: Two (2) bulit-in blowers provide enhanced heat dissipation (9.2 CFM).