Electrical Specifications - Seco Qseven CQ7-A42 User Manual

Carrier board for rel. 2.0, compliant modules on 3.5" form factor

Table of Contents

2.3 Electrical Specifications

CQ7-A42 board needs to be supplied using a standard ATX Power Supply (only +12V

Power Connector is type Molex Mini-Fit Jr., p/n 39-28-1043, or equivalent, with the pinout indicated in the following table.

Power Connector - CN21

Signal

GND

When choosing the power supply for CQ7-A42 board, please consider well what is the typical scenario for using the board (i.e., which peripherals will be

connected).

Internal power section is able to supply a maximum of 12A @ 5V and 4A @ 3.3V for Qseven module and for the external devices supplied directly by the carrier

board (i.e. USB devices, optionally SSD or SATA disks, display).

Since also 12V voltage can be drawn from the carrier board to supply other external peripherals (like Audio adapter modules, HDD, display Backlight, FAN), it is

very important to balance well the typical final configuration, summing all possible power consumptions.

This way it is possible to choose a PSU capable to supply enough current for the whole system.

2.3.1

RTC Battery

For the occurrences when the system (Carrier Board + Qseven

holder, for the use of standard coin battery type BR2032 with a nominal capacity of 220mAh, to supply, with a 3V voltage, the Real Time Clock and CMOS

memory mounted on the Qseven

The batteries should only be replaced with devices of the same type. Always check the orientation before inserting and make sure that they are aligned correctly

and are not damaged or leaking.

Never allow the batteries to become short-circuited during handling.

CAUTION: handling batteries incorrectly or replacing with not-approved devices may present a risk of fire or explosion.

Batteries supplied with CQ7-A42 board are compliant to requirements of European Directive 2006/66/EC regarding batteries and accumulators. When putting out

of order CQ7-A42 board, remove the batteries from the board in order to collect and dispose them according to the requirement of the same European Directive

above mentioned. Even when replacing the batteries, the disposal has to be made according to these requirements.

CQ7-A42

Mating Connector, MOLEX p/n 39-01-2040 or equivalent, with female crimp

terminal MOLEX series 5566. The use of wires with section 18 AWG or

20AWG is recommended, in order to ensure the proper amperage of the

Signal

power section.

+12V_A

All remaining voltages needed for board's working are derived internally from

+12V_A

+12V_A power rail.

module) is not powered with an external power supply, on board there is a horizontal battery