StorCase Technology DE90i-A - Manual (Page 16)

DE90i-A User's Guide - Rev. B02 StorCase Technology, Inc.
Installation 9
Table 2: J3 Master/Slave Signal Levels
*
corresponds to a jumper installed on the carrier
L (Low) corresponds to an installed jumper on the drive.
H (High) corresponds to a removed jumper on the drive.
The receiving frame circuit board is designed to route the drive's -HOST SLV/ACT signal
(drive activity) to the activity indicator light on the front panel of the DE90i-A receiving
frame. A connection to J3 Pin 3 (on the carrier board) should only be made if the drive
does not support this -HOST SLV/ACT signal on Pin 39 of the interface connector (check
the documentation that accompanied the drive and controller). If this J3 Pin 3 connection
is made, move jumper JP39 on the receiving frame from the "A" to the "B" position.
Three (3) Drive Type Jumpers, W1, W2, and W3 are available to control the signal levels at
J3, Pins 1 & 2.
Table 2 shows the signal levels on J3 Pin 1 and Pin 2 for different W1, W2, and W3 jumper
settings. Connections to J3 Pin 1 should be made with signals from the drive that refer to Master,
while connections to J3 Pin 2 should be made with signals from the drive that refer to Slave.