Advantech SmartStart SL305 Hardware Manual page 20

3. Router Design
3.9.2 Power PWR/IO Connector
Panel socket 4-pin.
Pin number
1
2
3
4
Unit has to be supplied by a power supply specified as a Limited Power Source (LPS) according to
Annex Q of IEC 62368-1:2014. If the power supply/cable provided with device is not used, always
use the cables with minimum wire size (nominal cross section) 0.5 square mm for power supply.
The power supply for the router must be between +9 V to +36 V DC, with current output 1 A. Protection
against reversed polarity without signaling is built into the router. Note: The protection against reversed
polarity is lost if the negative pole is grounded!
The router is awakened after the power supply outage and subsequent renewal.
The PWR / IO interface is also designed for the processing of binary input and control (setting) of binary
output.
SmartStart SL305 Hardware Manual
Signal mark Description
GND(-) Negative pole of DC supply voltage
VCC(+) Positive pole of DC supply voltage (+9 to +36 V DC, 1 A)
IN0 Binary input
OUT0 Binary output
Table 7: Connection of PWR / IO connector
Figure 15: PWR / IO connector
Figure 16: Circuit example – connection of power supply
3.9 Description of the Front Panel
14