Technical information

CHAPTER 4
Expansion Features
62 Expansion Bay
Expansion Bay Connectors 4
The expansion bay has two connectors: a five-contact connector for batteries
and a 60-pin connector for data devices. This section describes only the 60-pin
connector.
The connector used on the expansion modules is Foxconn part number
QL00303-A601. For information about obtaining this connector, contact Apple
Developer Support.
IMPORTANT
The expansion bay’s data connector is designed so that
when a module is inserted into the expansion bay, the first
connection is the ground by way of the connector shell,
then the power pins make contact, and last of all the signal
pins.
▲
Signals on the Expansion Bay Connector 4
Table 4-1 shows the signal assignments on the expansion bay connector. Signal
names that begin with a slash (/) are active low.
Note
The table shows the signals in the same arrangement as the
pins on the connector; that is, with pin 1 next to pin 31 and
pin 30 next to pin 60. ◆
Table 4-1 Signals on the expansion bay connector
Pin Direction Signal name Pin Direction Signal name
1 I MB1_SND_IN_R 31 I/O IDE_D(12)
2 I MB_SND_IN_COM 32 GND
3 I MB1_SND_IN_L 33 I/O IDE_D(14)
4 GND 34 I/O IDE_D(10)
5 /IOCHRDY 35 +5V
6 +5V 36 I/O IDE_D(9)
7 DIOW 37 GND