Fan Connector - Seco Qseven Q7-C26 User Manual

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3.2.2

FAN Connector

FAN Connector - CN2

Signal

GND

FAN_POWER

FAN_TACHO_IN

Please refer to chapter 4.1 for considerations about thermal dissipation.

FAN_POWER: +5V_RUN derived power rail for FAN, managed by NXP i.MX8 processors via PWM signal.

FAN_TACHO_IN: tachometric input from the fan to the NXP i.MX8 processors.

3.2.3

JTAG connector

JTAG Connector- CN4

Signal

+1.8V_ALW

JTAG_TCK

JTAG_TMS

JTAG_TDI

JTAG_TDO

JTAG_TRST_B

GND

3.2.4

NXP i.MX 8 processors offer many different SDIO interfaces, that can be used independently one from the other to implement different mass

storages media (internal eMMC, internal SD Card, external SDI/O interface). For this reason, on Q7-C26 module there is also a socket U58,

for the use of standard microSD cards, which can be used as Mass Storage and/or Boot Devices.

The connector is a microSD connector, push-push type, H=1.68 mm, type JST DM3AT-SF-PEJM5 or equivalent

Q7-C26

Q7-C26 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0

Depending on the usage model of Q7-C26, for critical applications/environments on the module itself it is available

a 3-pin dedicated connector for an external +5VDC FAN.

FAN Connector is a 3-pin single line SMT connector, type MOLEX 53261-0371 or equivalent, with pinout shown

in the table on the left.

Mating connector: MOLEX 51021-0300 receptacle with MOLEX 50079-8000 female crimp terminals.

Please be aware that the use of an external fan depends strongly on customer's application/installation.

NXP i.MX8 processors have a system JTAG Controller (SJC) and support two JTAG

modes, debug mode and test mode. This interface is accessible through connector CN4,

type JST p/n SM07B-SRSS-TB with the following pinout.

All these signals are at electrical level +1.8_ALW, please refer to NXP i.MX 8 development

reference manual for correct implementation.

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