Inc. Active Module Carrier User's Manual

1.2 SPECIFICATIONS OF EQUIPMENT

1.2.1 Key Features

 Provides direct access to the VME module’s front panel I/O connections

 Supplies buffered data, address, interrupt, and trigger lines (ECL and TTL)

 Includes direct SUMBUS connections, as well as a prototyping area with fused ±12V

power supplies for buffered SUMBUS connections (jumper selectable)

 Conforms with VMEbus/VXIbus driving and loading specifications

 Provides VME64 +3.3V supplies (-0001, -0003, and -0004 versions only)

 Mates with VXI, VME, and VME64 rear connectors

1.2.2 Electrical

The -0001, -0003, and -0004 versions provide +3.3V power to the P1 row D VME64 extension.

The -0002 version does not provide +3.3V power. A simplified power schematic for each

version is shown in Figure 2, Figure 3, and Figure 4. Excluding the +3.3V supply, the VX402C-

64 only requires 300mA of +5V power from the VXI backplane. This power requirement is for

the VX402C-64 alone. Any attached module will increase this value by the amount specified in

its data sheet.

Table I provides a summary of the supply capabilities of each version. The table assumes that

the VXI backplane is capable providing 1.2A on each of the seven +5V power pins. For versions

-0003 and -0004, 1.2A on the -24V and +24V pins.

Figure 2. Power Schematic (-0001 version)

VXI

BACKPLANE

+5V

+3.3V

+5V

VME64

CONNECTORS

GND

(7 PINS)

(10 PINS)

INTERNAL

LOGIC

DC-DC

CONVERTER

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