Maxtor D740X-6L 20.0 AT Product Manual page 31

     & % 2 Q Y G T ,  5 G E V K Q P #
The recommended mating connectors for the +5 VDC and +12 VDC input power
are listed in Table 3-2.
PIN VOLTAGE
NUMBER LEVEL
J1 Section A (4-Pin):
1 +12 VDC
2 Ground
Return for
+12 VDC
3 Ground
Return for
+5 VDC
4 +5 VDC
Note: Labels indicate the pin numbers on the connector. Pins 2 and 3 of
     ' Z V G T P C N & T K X G # E V K X K V [ . ' &
An external drive activity LED may be connected to the DASP-I/O pin 39 on J1.
For more details, see the pin description in Table 6-1.
     # 6 # $ W U + P V G T H C E G % Q P P G E V Q T ,  5 G E V K Q P %
On the Maxtor D740X-6L 20.0/40.0/60.0/80.0GB AT hard disk drives, the ATA
bus interface cable connector (J1, section C) is a 40-pin Universal Header, as shown
in Figure 3-9.
To prevent the possibility of incorrect installation, the connector has been keyed by
removing Pin 20. This ensures that a connector cannot be installed upside down.
See Chapter 6, "ATA Bus Interface and ATA Commands," for more detailed
information about the required signals. Refer to Table 6-1 for the pin assignments
of the ATA bus connector (J1, section C).
6 C D N G   J1 Power Connector, Section A
MATING CONNECTOR TYPE AND PART NUMBER
4-Pin Connector:
AMP P/N 1-480424-0
Loose piece contacts:
AMP P/N VS 60619-4
Strip contacts:
AMP P/N VS 61117-4
section A are the +5 and +12 volt returns and are connected together
on the drive.
(OR EQUIVALENT)
Maxtor D740X-6L 20.0/40.0/60.0/80.0GB AT
Installation
3-13