Figure 8 Ultra Ata Cable Connectors - Seagate ST3160215ACE Product Manual

3.5.1.3 Ultra ATA/100 cable
An 80-conductor 40-pin cable is required to run Ultra DMA mode 3, mode 4, and mode 5. This cable uses
even-numbered conductors connected to the ground pins to improve signal integrity.
Master
Slave
Figure 8 Ultra ATA cable connectors
Note. The drive supports both host and drive cable detection. The host detects the 80-conductor cable by
sampling pin 34, CBLID–, on the interface bus. The drive detects the 80-conductor cable by sens-
ing a capacitor at the host side through the CBLID– signal. The result is reported in a Fast Rise
Detected bit (bit 13 of word 93 in the Identify drive parameter block).
22
Pin 1
C o
m p
M o
t h e
Note. If you are using a 40-pin, 80-conductor
cable, attach the blue connector to the
motherboard, the black connector to the
master drive, and the gray connector
to the slave.
u t e
r
r b o
a r d
DB35.3 Series SATA/PATA Product Manual, Rev. F