Conner CFP2105 series, Руководство по эксплуатации продукта, Страница: 64 / 90

Chapter 5 SCSI Physical Characteristics
Page 56 Filepro CFP2105 Series
Connector Requirements
The drive's connector will mate with a AMP Champ 2-557103-1 vertical
receptacle or the AMP Champ 2-557101-1 right angle receptacle. A mating
connector which is compatible with 0.025 inch (0.63 mm) centerline #30 AWG
solid PVC insulation cabling is AMP Camp 1-557089-3. Refer to figure 2-1 for
the location of the connector on the drive.
Single Connector Attachment (SCA) Signal Definitions
Power
Four +12 Volt signals provide the +12 volt power to the drive. The current
return for the +12 volt power is through the +12 Volt Ground signals. The
maximum current that can be provided to the drive through the +12 Volt signal
pins is 3 Amperes. The supply current and return current must be distributed
as evenly as possible among the pins. The maximum current is required while
the drive motor is starting.
Three +5 Volt signal pins p5 volt power to the drive. The current return
for the +5 volt power is through the +5 Volt Ground pins. It is expected that the
+5 Volt Ground will also establish the digital logic ground for the drive. The
maximum current that can be provided to the drive through the +5 Volt signal
pins is 2 Amperes. The supply current and return current must be distributed
as evenly as possible among the pins.
These specifications refer to the connector's characteristics. Refer to Chapter 2
for the drive's power requirements.
Spindle Sync
The spindle rotation of up to 35 drives may be synchronized together by daisy
chaining pin 1 to pin 1 and pin 2 to pin 2 of each drive on connector J3. The
synchronization tolerance is 1%.
Table 5-4
Electrical Characteristics for the Spindle Sync Signal
STATE Current Voltage
High
0 < I
IH
< 20
µ
A
2.5 V < V
IH
< V
CC
+ 0.3 V
Low
0 < I
OH
< -48 mA -0.1 V < V
IL
< 0.4 V