westermo Merlin 4700 Series Cellular Router User Guide
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.
The product can be supplied with power from a source that complies with PS2/LPS according
to UL/IEC 62368-1 or with LPS according to UL/IEC 60950-1, the latest edition or equivalent.
Such a power supply shall not exceed 100W after 5 seconds.
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.
Merlin 4700 Series
11
| General | Details |
|---|---|
| Name | westermo Merlin 4700 Series Cellular Router User Guide |
| Make | westermo |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.84 MB |
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