Maxtor 1925 - Manual (Page 37)

Installation
4-12 Quickview 40 20/30/40GB AT
4.5.1 DC Power (J1, Section A)
The recommended mating connectors for the +5 VDC and +12 VDC
input power are listed in Table 4-2.
Table 4-2 J1 Power Connector, Section A
Note: Labels indicate the pin numbers on the connector. Pins 2
and 3 of section A are the +5 and +12 volt returns and
are connected together on the drive.
4.5.2 External Drive Activity LED
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.
4.5.3 ATA Bus Interface Connector (J1, Section C)
On the Maxtor Quickview 40 20/30/40GB AT hard disk drives, the ATA
bus interface cable connector (J1, section C) is a 40-pin Universal
Header, as shown in Figure 4-7.
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 5, “ATA Bus Interface and ATA Commands,” for more
detailed information about the required signals. Refer to Table 5-1 for
the pin assignments of the ATA bus connector (J1, section C).
4.6 FOR SYSTEMS WITH A MOTHERBOARD ATA ADAPTER
You can install the Maxtor Quickview 40 20/30/40GB AT hard disk
drives in an AT-compatible system that contains a 40-pin ATA bus
PIN
NUMBER
VOLTAGE
LEVEL
MATING CONNECTOR TYPE AND PART NUMBER
(OR EQUIVALENT)
J1 Section A (4-Pin):
1 +12 VDC 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
2 Ground
Return for
+12 VDC
3 Ground
Return for
+5 VDC
4 +5 VDC