westermo Merlin 4700 Series VDSL Cellular Router User Guide

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The positive input is marked with a plus sign, "+". The negative input is marked with a minus sign, "-". Connect  

the voltage to the + pin and the return to the - pin on the power input.  

NOTICE - POWER SUPPLY  

Where an AC/DC-adapter has not been supplied, a power supply of no greater than 100 W  

should be used, with a current limit of 1 Amp.  

3.4.2. Digital I/O Interface  

IN 6  

IN 5  

IN 4  

IN 3  

IN 2  

IN 1  

OUT 2  

OUT 1  

Figure 4. Pinout of the digital I/O sockets  

On the first digital I/O socket, there is a 4 x 2 pin connector comprising two inputs and two outputs. The  

second digital I/O socket has four inputs.  

The relay contact output has 220 VDC 2A rating.  

The output is connected to a pair of relay contacts that are normally open, that is open when no power is  

applied.  

3.4.3. Serial Ports  

A pair of asynchronous serial ports may be present on the router. The serial ports are named as follows, also  

their identifiers for use within the terminal server configuration:  

Label  

tservd.port.serialPortName  

SERIAL 1 serial1  

SERIAL 2 serial2  

1

2

SERIAL  

Figure 5. Serial ports  

Each serial port is software configurable to operate in either RS-232 or RS-485 mode.  

The pin numbering of the serial port connector is shown below.  

1

8

Figure 6. Pin numbering of serial port  

10  

Merlin 4700 Series  

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General	Details
Name	westermo Merlin 4700 Series VDSL Cellular Router User Guide
Make	westermo
Language	English
Filetype	PDF (Download)
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