Conner CFP2105 series, Product Manual, Page: 65 / 90

SCSI Physical Characteristics Chapter 5
Technical Reference Manual Page 57
LED Out
The LED out signal is driven by the drive when the drive is performing a SCSI
operation. The LED out signal is designed to pull down the cathode of an LED.
The anode is attached to the 5 volt supply through an appropriate
current limiting resistor. The LED and the current limiting resistor are external
to the drive.
Table 5-5
Output Characteristics of the LED Driver Signal
State Current Drive Available Output Voltage
Drive LED Off 0 < I
OH
< 100
µ
A
Drive LED On I
OL
< -30 mA 0 < V
OL
< 0.8 Volts
Motor Start Controls
Table 5-6
Electrical Characteristics for RMT_START and DLYD_START
State Current Voltage
Open 0 < I
IH
< +100
µ
A
2.4 V < V
IH
< V
CC
+ 0.5 V
Ground 0 < I
OH
< -3 mA -0.5 V < V
IL
< 0.4 V
SCSI ID Selection
Table 5-7
Electrical Characteristics for the SCSI ID Signals SCSI ID (0) - (3)
State Current Voltage
Open 0 < I
IH
< +100
µ
A
2.4 V < V
IH
< V
CC
+ 0.5 V
Ground 0 < I
OH
< -3 mA -0.5 V < V
IL
< 0.4 V