AT2550 User Guide
December 8, 2003
page 10 of 17
Jumper Header – J2
XP
XP
GND
GND
GND
3.3 IDE INTERFACE
The AT2550 uses a 44-pin right angle 2mm connector mounted on the controller
PCB to create both a power and signal connection to the host. Maximum cable
length is 18 inches. Recommended cable length is 12 inches or less, especially if
an advanced PIO or UDMA transfer modes are being used. The recommended
mating socket connector is 3M 152244-003-GG or equivalent.
3.3.1 IDE ADAPTER
An adapter converting the 2mm IDE connector to a standard 40-pin 0.100” IDE
connector is available from the factory. Order part number 153264-002. The
adapter converts the signals from the 2mm connector on the drive to a 0.100”
connector. Power arrives via a 4-pin Amp power header (EI series) identical to the
connector used to supply power to 3.5 inch floppy drives. To convert the 4-pin
Amp power connector to a standard 4-pin AT power connector, request the ATA
power cable adapter, part number 153273-002.
2.75”
0.75”
40-pin 0.100”
IDE
Amp 4-pin
power
2mm 44-pin
socket - solder
side mount
COMP VIEW
