AT2550 User Guide
December 8, 2003
page 6 of 17
3.1.6 PARTITION
The drive must be partitioned using the system’s FDISK utility. For operating
systems other than DOS, please refer to your OS operating guides. Note that
changing the partition information will erase all data currently on the drive. Refer
to your OS manual for information regarding partitioning a hard disk.
3.1.7 FORMAT
The AT2550 is low-level formatted at the factory, which establishes the 512-byte
sector size. A high-level format is required after the partition has been established
on the drive. Refer to your OS manual for information regarding hard disk drive
format procedures.
3.2 JUMPERS
The following diagram illustrates the locations of the jumpers on the AT2550
controller card. The jumpers are found on both the J1 interface header and the J2
jumper header. Refer to the illustration below. The option jumpers control the
master/slave configuration of the drive, the use of cable selection, drive write
protection, and other factory related functions. All headers are on 2mm centers.
OPT1
OPT2
GND
TX/RX
WP
XP
CS
M/S
LED
J2
J1
AT2550 Bottom View
