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DB35.3 Series SATA/PATA Product Manual, Rev. F
3.4.1 How to configure the drive
Each drive on the Serial ATA interface connects point-to-point with the Serial ATA host adapter. There is no
master/slave relationship because each drive is considered a master in a point-to-point relationship. If two
drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they
were both “masters” on two separate ports. Both drives behave as if they are Device 0 (master) devices.
Serial ATA drives are designed for easy installation. It is usually not necessary to set any jumpers on the drive
for proper operation; however, if you connect the drive and receive a “drive not detected” error, your SATA-
equipped motherboard or host adapter may use a ch ip se t tha t do es no t supp ort SATA speed autonegotiation . If
you have a motherboard or host adapter that does not support autonegotiation:
• Install a jumper as shown in Figure 5 below to limit the data transfer rate to 1.5 Gbits per second (and leave
the drive connected to the SATA-equipped motherb oard or host adapte r that doe sn’t supp ort auton egotiation)
or
• Install a SATA host adapter that supports autonegotiation, leave the drive jumper block set to “Normal
operation” (see Figure 5 below), and connect the drive to that adap ter. This option has the benefi t of not limiting
the drive to a 1.5 Gbits/sec transfer rate.
Figure 5. Serial ATA connectors
3.4.2 How to connect the SATA cables
The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connec-
tions. The cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See Table 5
for connector pin definitions. Either end of the SATA signal cable can be attached to the drive or host.
For direct backplane connection, the drive connectors are inserted directly into the host receptacle. The drive
and the host receptacle incorporate features that enable the direct connection to be hot pluggable and blind
mateable.
For installations which require cables, you can connect the drive as illustrated in Figure 6.
Figure 6. Attaching SATA cabling
Each cable is keyed to ensure correct orientation. DB35.3 Series drives support latching SATA connectors.
Jumper block
SATA interface connector
SATA power connector
Limit data transfer rate to
1.5 Gbits per second
3.0 Gbits per second operation
Power cable
S
ignal cable
Signal connector
Power connector