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 3   |  Countertop P400 Quick Start Guide 

WARNINGS

• 

Do not use liquids near your device. Spilling liquids onto your device may damage it and make it unsafe to use. 

• 

Do not use thinner, trichloroethylene, or ketone-based cleaning products to clean your device; they can  
corrode the plastic and rubber parts. 

• 

Do not spray cleaning products directly onto your device.

• 

Use only the cables we provide for your device. 

• 

Do not plug your power adapter into an outdoor power outlet.

• 

Do not disconnect power to your device while you are running a transaction.

STEP 1: ATTACH THE UTILITY CABLE

1. Turn your device upside–down and place it on a flat, stable surface.

2. Remove the rear cover by sliding it up and lifting it off.

3. Attach the utility cable to your device.  

Push the connector straight down so that you don’t bend the pins. 

BEFORE  
YOU  
BEGIN

Find your Merchantware credentials. We sent these in an email with 
“Merchantware Credentials” in the subject line.

Make sure your internet connection is working correctly and that your router 
or switch has a free Ethernet port.

SPECIFICATIONS

Power

5-12 V DC, 4.8-5.2 W power consumption, 
power over USB 5 V, 500 mA

Operating temperature

32°F to 122°F (0°C to 50°C)

Storage temperature

-4°F to 140°F (-20°C to 60°C)

Relative humidity

5% to 90%, non-condensing

Remove the rear cover

Attach the 

utility cable

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