Adaptec AHA-2740-T User Manual download pdf (Page 41)

SCSI Bus Activity LED Connector

Most computer systems have a disk drive activity light, usually

an LED (Light Emitting Diode) on the front panel. If you connect

your system’s LED cable to the host adapter, the LED will light

to indicate data transfer on the SCSI bus.

Note

If you connect your computer’s LED to the host adapter, the LED

will no longer indicate non-SCSI disk activity. So you may not

want to use this feature if you are running non-SCSI disk drives.

To connect the SCSI bus LED connector:

➤

1 Refer to your system’s documentation to locate and unplug

the LED cable from the connector on the system board.

2 Connect the LED cable to the SCSI activity LED connector

(J1) on the host adapter as shown in Figure 2-5.

Note

On systems with a two position LED cable, connect the LED

cable to pins 1 and 2 of the LED connector.

LED CONNECTOR

LED CABLE

PIN 1

Figure 2-5. SCSI LED Connector

Adaptec AHA-2740 Series User’s Manual

Stock Number: 510381-00 / Rev. C (Page 2-14)

Print Spec Number: 491709-00 Rev C

Current Date: 9/1/93 ECN Date: 9/14/93

AHA-2740 Series User’s Manual

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Adaptec AHA-2740-T User Manual Page 41