Seagate Elite 9 User Manual download pdf (Page 33)

Figure 13 shows how the terminator resistor-paks are attached on drives with

differential I/O. These terminator resistor-paks, which are dual inline packages,

mount in sockets in the control board. These terminators are also marked with a

dot above pin 1.

If the drive is located at either end of the daisychain, ensure that it has

resistor-pak(s) installed. Section 4 lists resistor-pak part numbers. Refer to

information earlier in this section regarding the terminator power source

jumper.

Grounding the system

Grounding the system through the power cables and I/O cables is usually

sufficient to protect against noise and emissions.

Terminator

Resistor-Paks

(dual inline

packages)

Terminator Power

Source Jumper

Terminator

Resistor-Pak

(note orientation)

Terminator

Socket

Pin 1

Figure 13. Terminator attachment—differential I/O

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Seagate Elite 9 User Manual Page 33