Maxx GW4102

The device

The programmable maxx GW4102 mobile communication gateway for industrial applications collects and processes the information from your devices, machines and sensors, and transmits it via the expanded LTE network. The PLC I/O interface expansion enhances the basic unit with 16 isolated digital inputs and four isolated digital outputs. The inputs are divided into four groups of four inputs with a common negative terminal for each group.

This constellation allows the connection of up to four devices (e.g. PLCs) with minimal wiring effort while keeping each device isolated from each other.

The maxx GW4102 gateway is therefore ideal for transmitting measurements from the field to the head office or the cloud.

Interfaces

The following section describes the various interfaces of the GW4102 in detail. This graphic shows the distribution of the interfaces:

Pinout isolated outputs

Typ	Signal	Pin	Pin	Signal
isolated outputs	ISO_OUT_A0	1	2	ISO_OUT_A1
	ISO_OUT_B0	3	4	ISO_OUT_B1
	ISO_OUT_B0	5	6	ISO_OUT_B1
	ISO_OUT_A2	7	8	ISO_OUT_A3
	ISO_OUT_B2	9	10	ISO_OUT_B3

Pinout isolated inputs group A

Typ	Signal	Pin	Pin	Signal
isolated inputs group A	ISO_IN_A_P0	1	2	ISO_IN_A_P1
	ISO_IN_A_P2	3	4	ISO_IN_A_P3
	ISO_IN_B_N	5	6	ISO_IN_A_N

Pinout isolated inputs group B

Typ	Signal	Pin	Pin	Signal
isolated inputs group B	ISO_IN_B_P0	1	2	ISO_IN_B_P1
	ISO_IN_B_P2	3	4	ISO_IN_B_P3
	ISO_IN_C_N	5	6	ISO_IN_B_N

Pinout isolated inputs group C

Typ	Signal	Pin	Pin	Signal
isolated inputs group C	ISO_IN_C_P0	1	2	ISO_IN_C_P1
	ISO_IN_C_P2	3	4	ISO_IN_C_P3
	ISO_IN_D_N	5	6	ISO_IN_C_N

Pinout isolated inputs group D

Typ	Signal	Pin	Pin	Signal
isolated inputs group D	ISO_IN_D_P0	1	2	ISO_IN_D_P1
	ISO_IN_D_P2	3	4	ISO_IN_D_P3
	NC	5	6	ISO_IN_D_N

isolated inputs

The following picture shows the simplified architecture one of the four isolated inputs with internal current limit and temperature stabilized threshold. Internally the isolation is achieved by the use of a TLP293 optocoupler.

Cascading inputs

Each group of four inputs features a common negative terminal to reduce wiring effort. Furthermore the groups can be cascaded as shown in the following diagrams. Other configurations following the same method are possible.

4x4 configuration