Ports Configuration

The below numbers should be used inside the Configurator when using one of the ports on the Compact:

  • RS-232 (DB9): use 0.
  • USB: use 10.



Compact's DB9 Serial Port

Compact's DB9 Serial Port


Pin Signal Name Type
1 DCD Data Carrier Detect Input
2 RxD Receive Data Input
3 TxD Transmit Data Output
4 DTR Data Terminal Ready Output
5 GND Signal Ground -
6 DSR Data Set Ready Input
7 RTS Request to Send Output
8 CTS Clear to Send Input
9 RI Ring Indicator Input

The below numbers should be used inside the Configurator when using one of the ports on the Rack:

  • RS-232 (DB9) x2: use 0 and 1. Consult the Compact's image for reference.
  • Additional green ports (RS-232 and RS-485): use 2 and 3.
  • USB: use 10.

The additional green ports on the Rack can be used either for RS-232 or RS-485. Consult the picture below for a proper connection.

Rack's Green Ports

Rack's Green Ports

The below numbers should be used inside the Configurator when using one of the ports on the Brickbox:

  • RS-232: use 4.
  • RS-485: use 5.



Brickbox's Ports

Brickbox's Ports


RS-485 RS-232
Pin Description Pin Description
1 GND - Ground 4 GND - Ground
2 Data A (D+) 5 CTS - Clear To Send (input)
3 Data B (D-) 6 RTS - Request To Send (output)
7 RX - Receive Data (input)
8 TX - Transmit Data (output)

The below numbers should be used inside the Configurator when using one of the ports on the Envision_20:

  • RS-232: use 1.
  • RS-485: use 2.
  • USB: use 10.

Envision's Ports

Envision's Ports


RS-485 RS-232
Pin Description Pin Description
1 Data A (D+) 3 GND - Ground
2 Data B (D-) 4 TX - Transmit Data (output)
5 RX - Receive Data (input)

The below numbers should be used inside the Configurator when using one of the ports on the Micro_20:

  • USB: use 10.

Connecting a DCE device with DB9

A DCE device usually has the pins TX and RX inverted (TX on pin 2, RX on pin 3).
Connecting Brickbox to Paradox DB9 port

Connecting Brickbox to Paradox DB9 port

Transforming a green block into DB9

Transforming Envision port to DB9 port

Transforming Envision port to DB9 port