Labels:text | screenshot | font | black and white OCR: 8 S13144 Family installation Guide, Rev. D 3. Master/Slave configuration. The table below defines jumper settings for configuring up to two drives on a single AT bus, Refer to Figure 1 for jumper locations. System Configuration Jumper Master Slave Present Only drive in system Installed Removed Drive 1 in a two-drive system Installed Installed Drive 2 in a two-drive system Removed Removed 4. Drive Activity LED jumper. If you install a jumper on pins 9 and 10 of the User Configuration jumper block, the drive indicates activity to the system through a connector on the host adapter or motherboard. 5. Attach the 40-pin AT interface cable. A dual-drive system requires a 40-pin AT interface daisy-chain cable. Pin 20 has been removed on the connector for keying purposes. Most interface cables have a stripe on one side to designate Pin 1. Make sure Pin 1 on the cable connector is aligned to Pin 1 on the drive connector and Pin 1 on the host connector. The maximum cable length is 18 inches (457 mm). For systems without an embedded AT interface connector on the motherboard, Seagate offers the ST07A/ST08A AT inter- face host adapters. Note. To prevent improper pin alignment during installation, it is recommended that the mating cable connector be keyed, by inserting a plug into the Pin-20 location of the cable connector. 6. Attach a system power cable to the drive power connec- tor. The ST3144 family drives have both 3-pin and 4-pin power connectors. 7. Mount the drive in the host system chassis.
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