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

33

Connecting the system I/O cabling

Make sure the site has been prepared in accordance with the site require- ments information provided earlier in this section. This procedure describes how to cable the system in a daisy-chain configuration, which was discussed earlier in this section in “Interface requirements.”

ST43401N/ND drives

The drive has one I/O connector on the control board. Figure 15 shows how a typical I/O cable connects to the board.

If the drive is either the first or last device (at either end) in the daisy chain, it must be terminated. Drives in the middle of the daisy chain must not be terminated. Drives that are terminated have three terminator resistor-paks installed as shown in Figures 17 (ST43401N) and 18 (ST43401ND).

I/O

Connector

Pin 1

Daisychain

I/O Cable

Figure 15. ST43401N/ND I/O cable attachment

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Seagate ST43402ND user manual Connecting the system I/O cabling, ST43401N/ND drives