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1

 

 

      

 

X303 Quick Start Guide 

 

IoT Cellular Gateway

 

RS

-

232

 

X303

 

WHAT

S IN THE BOX

 

Part  number

 

!

 

Thank you for choosing Lantronix.  Please register your product to receive notifications for firmware and 
documentation updates at 

www.lantronix.com/product

-

registration

.

 

Power supply 

 

ACC

-

520

-

0165

-

00

 

1

 

Cellular antenna

 

A31M0

 

1

 

Wi

-

Fi / Bluetooth antenna

 

A21H0

 

1

 

HARDWARE SETUP

 

1.

 

Unbox and verify the contents.  

 

2.

 

To insert the optional SIM card, press the yellow SIM tray button (using a pen 
tip or other similar object) to eject the SIM tray. Place the SIM card on the 
SIM tray in the correct orientation. Gently push the SIM tray back into the 
SIM slot.  

Note

: Activate the SIM according to the vendor

s instructions.

 

3.

 

Attach the cellular antenna to its antenna connector and tighten it securely. 

 

4.

 

Attach the Wi

-

Fi / Bluetooth antenna to its antenna connector and tighten it 

securely.

 

5.

 

Connect the accessory power adapter; attach the 3

-

pin plug to the DC input 

the device side and the other end to the power outlet.  

 

6.

 

 Wait for the device to boot. The green POWER LED light will be on.  

 

Accessory

 

quantity

 

guides

 

Quick 

Start

 

SIM  

 

Insert

 

HARDWARE OVERVIEW

 

For additional accessories, visit 

 

https://www.lantronix.com/products/x300

-

series/

 

Ethernet LAN

 

LEDs

 

SIM 1

 

Cellular  

 

Front View

 

Back View

 

LEDs

 

ALERT

 

Red

 

Device alert

 

Activity

 

Amber

 

Cellular data activity

 

Network

 

Amber

 

Cellular network status

 

Signal

 

Amber

 

Cellular signal strength

 

SIM

 

Blue

 

-

 On: Embedded SIM in use

 

-

 Blink: External SIM in use

 

-

 Off: SIM not in use

 

Wi

-

Fi

 

Blue

 

Wi

-

Fi network status

 

POWER

 

Green

 

Power 

 

Optional 

 

mini

-

SIM slot 

 

microSD card 

 

(not provided) slot

 

One embedded SIM is provided.

 

(See X300 User Guide for details.)

 

Wi

-

Fi / Bluetooth

 

Reset

 

DC input

 

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