Adaptec AHA-2742T User Manual - Page 41

SCSI Bus Activity LED Connector

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AHA-2740 Series User's Manual 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 CABLE 2-14 PIN 1 LED CONNECTOR 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

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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
2-14