Seagate ST43401N/ND, ST43402ND Installation procedures, Setting the control board jumpers

ST43401N/ND, ST43402ND User’s Manual, Rev. B 23

Installation procedures

With the site requirements completed, the enclosure designed, and the drive unpacked you are ready to begin the installation. The following procedures are included in drive installation:

•Setting the circuit board jumpers

•Installing a power supply

•Attaching an optional bezel

•Mounting the drive

•Connecting the system I/O cabling

•Grounding the system

•Synchronizing the spindle

Setting the control board jumpers

Caution. Do not remove the circuit boards to set jumpers.

The circuit boards on the drive contain a number of jumpers that must be set correctly for normal operation of the drive. The termination must also be set correctly for normal operation.

ST43401N and ST43401ND drives have two circuit boards—one control board and one power board—but all of the necessary jumpers, including the termination jumper and terminator resistor-pak sockets, are on the control board. See Figure 8 to configure an ST43401N or ST43401ND drive.

The ST43402ND drive has two circuit boards—one control board and one I/O board—which must be configured correctly for normal drive operation. See Figures 9, 10, 11, and 12 to configure an ST43402ND drive.

Note. The option pin headers on J10 (see Figure 11) are provided for manual drive configuration. This helps you connect the disc drive to an external device such as a switch or connection. Ground should be provided by the external device.