Datasheet of CM4 Industrial V1.4

EDA Technology Co.,LTD

– Electronics Development Accelerator

5.4.2 WiFi / BT antenna

Parameter

Feature

Antenna type

External antenna

frequency band

2400-2500MHz, 5150-5850 MHz

antenna gain

2 dBi

impedance

50 OHM

6 Electrical characteristics

6.1 Electrical Parameters

Parameters

Minimum

Typical

Max

Unit

V1.4 system power input

9

12

36

V

Working temperature

-25

25

50

°C

Storage temperature

-25

25

50

°C

Working environment humidity

20

90

%

Relay AC load

125V 0.5A

Relay DC load

30V 3A

NOTE：The maximum power input of V1.1~V1.3 system is 18V.

7 FAQ

7.1 Can micro SD card be used for system startup?

The micro SD card slot is only used with CM4 Lite for primary file system storage. If you choose CM4

module with eMMC, this micro SD card slot is not available because it shares an MMC interface with

eMMC.

8 Product Change Record

8.1 V1.4



Change the power chip, adjust the power input range to 9V~36V, and optimize part of the circuit