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myBOX USER MANUAL

4.2.Connecting to networks via RS-232/485 interface #

Note that this chapter is applicable only if the optional “Serial ports” kit has been purchased with the device.

The kit comprises of three serial ports, described in the table below:

Port name

Port type

Connection

COM1

RS-232

EIA/TIA-561

COM2

RS-232

Proprietary

RS-485

RS-485

Proprietary

 

All these three serial ports are located in the “Port 1” of the device (physically RJ-45 Ethernet port). The connection scheme of the “Port 1” is as follows:

RJ-45 Pin

Pin name

Description

1

GND

Signal Ground

2

RxD

COM 2 Receive pin

3

TxD

COM 2 Transmit pin

4

GND

Signal Ground

5

RxD

COM 1 Receive pin

6

TxD

COM 1 Transmit pin

7

A

RS-485 A also denoted as (-)

8

B

RS-485 B also denoted as (+)

 

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