Remote Led; Cable-Select; Figure 5. Connecting Cable-Selected Drives - Seagate Medalist 1270 Product Manual

Ata interface drive

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2.4.3 Remote LED

You can connect a remote LED to pins 13 (−) and 14 (+) of the options

jumper block (J8). The LED is polarized and can be damaged if it is

installed incorrectly.

Because the jumper block uses a 0.1-inch connector, you may need to

replace the current connector. Use Seagate connector part number

10562-001 or an equivalent.

Computers that use cable-select determine the master and slave drives

by selecting or deselecting pin 28, CSEL, on the interface bus. Master

and slave drives are determined by their physical position on the bus.

• The drive plugged into the I/O connector that carries the CSEL signal

is the master.

• The drive plugged into the I/O connector that does not carry the CSEL

signal is the slave.

To configure the drive for computers using cable select:

• Install jumpers on pins 1 and 2 and pins 3 and 4 as shown in Figure

4 on page 21.

• Connect the drive to the bus as shown in Figure 5.

CSEL not carried

to pin 28 of

this connector

Medalist 1270 Product Manual, August 1995

Slave

Master

Pin 28 grounded

at computer

Computer

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