The receiving frame rear panel – StorCase Technology DE90i-S User Manual
Page 8
DE90i-S, Rev. A00
Kingston Technology Company
Introduction
3
Figure 3: Receiving Frame (Rear View)
The Receiving Frame Rear Panel
(Refer to Figure 3)
•
DC Power Connector (J1): The Data Express uses a standard 4-pin Molex Disk
Power Connector to accept DC power.
•
I/O Connector (J2): The input/output connector provides a standard interface for
all SCSI signals. See Table 4 for J2 pin assignments.
•
ID Select Pins (J4): Pins 1 through 14 are reserved. Pins 15 through 20 of this
connector provide unit SCSI ID selection for the computer system or expansion
chassis. For remote ID selection through an expansion chassis, the unit ID must be
set to '0' or open (no jumpers installed) on these pins. See Table 3 for J4 pin
assignments.
•
Enable Termination Power To/From SCSI BUS (W1): The rear panel contains
the bus terminators (active) for 8-bit single-ended SCSI interface. Jumper is
installed at the factory.
•
Enable On Board Termination Resistors (W2): Position 'B' is installed at the
factory. Position 'A' will disable termination.
W2
W3
DC Power
Connector
Enable
Termination
Power To/From
SCSI BUS
Enable On-Board
Termination
Remote ID
Select
I/O
Connector
Ground
ID0 ID1 ID2
0408
19
20
J1
J2
J6
J4
+5
+12
GND
1
2
Reserved
W1
J6A
14
13
Reserved
1 2
6
1 2
6
J6:
P1, P2 = Reserved Jumper
(Installed at Factory)
P4, P6 = Remote Drive Activity
P3, P5 = Reserved
J6A:
P1 = Write Protect
P2 = Fault
P3, P5 = Not Used
P4, P6 = Ground
Installed
at Factory
Anode
Cathode
P4
P6
= Pin 1