Wall Mountable Display Solution

4Discovery-50

Page 5 of 43

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3. Configurations – Daughter Boards

There is a daughter board inside the 4Discovery 5” module which is permanently attached at the factory.

There are multiple configurations that the 4Discovery 5” can be ordered in. The default configuration utilizes a

daughter board called DB01. Unless otherwise stated, 4Discovery 5” is assumed to have DB01 installed.

DB01 is the standard daughter board, and DB02 is a alternative providing different communication options. It is

possible to also have a custom Daughter board designed to suit various customer requirements. The daughter board

holds the 2x RJ45 Jacks which present at the back of the 4Discovery 5” module and is a separate PCB to the main

4Discovery PCB, connected with soldered header pins.

The Daughter Board is not user removable and is installed during manufacturing of the 4Discovery module.

Please ensure to contact our Sales team to discuss your requirements, as customisations are possible.

3.1. Daughter Board DB01

DB01 refers to ‘Daughter Board 01’ – Which is the default configuration which the 4Discovery 5” is sold in. Unless

otherwise stated, 4Discovery 5” is assumed to have DB01 installed.

DB01 is a secondary PCB which is soldered onto the main PCB at the 4D Systems factory, and provides a looped dual

port RS485 communications bus, which communicates to the electronics on the 4Discovery main PCB.

This default configuration enables RS485 communications using a 2-wire bus, and the dual RJ45 ports mean you can

daisy chain multiple modules or other RS485 devices together on the bus, without the need for RS485 hubs or

splitters.

In this configuration, to program the 4Discovery you will need the RS485 Programmer, which is discussed in a later

section of this document.

3.2. Daughter Board DB02

DB02 refers to ‘Daughter Board 02’ – Which is a secondary configuration for the 4Discovery 5” and is available on

request by discussing with our Sales team.

Like DB01, the DB02 is a daughter board which is mounted at our factory and provides various communication

options to the Diablo16 processor. It also features dual RJ45 ports, however the pinout is different for each port.

DB02 features an RS232 communications port, a UART communications port, and 3 GPIO (including an I2C port).

This option is useful when using the 4Discovery in local control applications, such as on a machine or to a local

controller, where RS485 is not required. These communication signals are available across the 2 RJ45 ports, please

refer to the pinout in Section 4 for more information.

In this configuration, to program the 4Discovery you will program it over the serial UART, which is found on the RJ45

PORT 1, details can be found in later sections of this document.

3.3. Future

At the time of writing this document, 2 daughter board options were available, however more may be listed in the

future.

If an application warrants a completely custom daughter board to be designed and produced, this is possible, please

refer to Section 9 for some more information, and be sure to contact our Sales team.