2 Installing Components (optional)

This chapter describes how to install optional components.

2.1 Installing Internal Components

Introducing the detailed operations of opening/closing the device case and installing the RTC battery. Before installing the internal components, it is necessary to open the device case.

2.1.1 Open Device Case

Preparation:

A cross screwdriver has been prepared.

Steps:

  1. Pull out the default configuration of phoenix connector (male for wiring).

  2. Use a screwdriver to loosen two M3 screws on two sides counterclockwise.

image-20240627114015187
  1. Remove the side cover to the right.
image-20240627114051555
  1. Use a screwdriver to loosen four M3 screws and one grounding screw on two sides counterclockwise..
image-20240627114408158
  1. Remove the metal case upward and turn it to the ports side.
image-20240627114435178
  1. Use a screwdriver to loosen the 8 screws fixing the PCBA counterclockwise, and flip it to the back of the PCBA.
image-20240627114540873

2.1.2 Install RTC battery

TIP

Some international logistics do not support the transportation of batteries, and some ex-factory devices are not equipped with CR1220 batteries. Therefore, before using RTC, please prepare a CR1220 battery and install it on the motherboard.

Preparation:

  • The device case has been opened.
  • The CR1220 battery has been prepared.
image-20240531142736591

Steps:

  1. Locate the RTC battery base where the battery is to be installed, as shown in the red box below.
image-20240627114616827
  1. Put the positive pole of the battery upwards and press it into the RTC base. The installation effect is as shown below.
image-20240627114722455

2.1.3 Close Device Case

Preparation:

A cross screwdriver has been prepared.

Steps:

  1. Turn the PCBA over to the front and place it on the back of the LCD screen. Align the 8 screw holes on the PCBA with the stud holes on the back of the LCD screen. Insert the 8 mounting screws, and then use a screwdriver to tighten clockwise to fix the PCBA on the on the back of the LCD screen.
image-20240627114848912
  1. Flip the metal case upward, align the screw mounting holes on the metal case with the screw mounting holes on the back of the LCD screen, and cover it downward on the back of the LCD screen.
image-20240627114913459
  1. Align the screw holes on side panels of metal case, insert 4 M3 screws and one grounding screw, then tighten clockwise with a screwdriver.
image-20240627134027401
  1. Align the ports on PCBA with the ports on the side panel, insert the side cover.
image-20240627134101599
  1. Insert 2 M3 screws and then use a screwdriver to tighten two M3 screws clockwise.
image-20240627134156883
  1. Plug in the default phoenix connector.

2.2 Installing/Removing External Components

Introducing the detailed operations of installing/removing some optional accessories.

2.2.1 Install Antenna

If the purchasing ED-HMI2120-070C includes 4G and Wi-Fi functions, the antenna need to be installed before using the device.

Preparation:

The corresponding antennas have been obtained from the packaging box. If there are multiple antennas, they can be distinguished by the labels on the antennas.

Steps:

  1. Find the location of antenna port, as shown in the red mark of figure below.
image-20240627134951386
  1. Align the ports on both sides of the device and the antenna and tighten them clockwise to ensure that they will not fall off.

2.2.2 Install Micro SD Card

If you need to install the SD card while using the product, you can refer to the following instructions.

Preparation:

SD card is ready.

Steps:

  1. Find the location of SD card slot, as shown in the red mark of figure below.
image-20240627135805148
  1. Insert the Micro SD card into the corresponding card slot with the contact side facing down, and hear a sound to indicate that the installation is completed.
image-20240627135839213

2.2.3 Pull Out SD Card

If you need to remove the SD card while using the product, you can refer to the following instructions.

Steps:

  1. Find the location of SD card, as shown in the red mark of figure below.
image-20240627140040210
  1. Press the SD card into the card slot with your hand to pop it out, and then pull out the SD card.
image-20240627140102304

2.2.4 Install Nano SIM Card

If the purchasing ED-HMI2120-070C device includes 4G function, the SIM card need to be installed before using 4G.

Preparation:

The 4G Nano SIM card is ready.

Steps:

  1. Find the location of Nano SIM card slot, as shown in the red mark of figure below.
image-20240627140414960
  1. Insert the Nano SIM card into the corresponding card slot with the chip side up, and hear a sound to indicate that the installation is completed.
image-20240627140450433