Gigabit Ethernet Switch with PoE+ for Industrial Use
Page 8/11
©2017_MICROSENS GmbH & Co. KG_Küferstr. 16_59067 Hamm/Germany_www.microsens.com
Power Supply / Alarm Contact
The power supply is done by an external power supply with an output voltage of
9..56 VDC (44..56 VDC for PoE operation). This power supply is not included at
delivery, but can be ordered separately (e.g. MS700455). The connection is done
by the pluggable screw terminals on the top of the device. The connection of a
redundant power supply can be done by the second screw terminal. Connect
positive wire to P+, negative wire to P-, also connect grounding/ earth wire to
the grounding screw.
Pin out Power Connector and Alarm Contact
WARNING: Any exceeded input voltage will not make this unit function
and may damage this unit!
Warning: Always ground the power source to maintain a clean power
input.
The status of the alarm relay (RLY) contact depends on the power inputs P1 and
P2:
Input power condition
Relay status
Power 1 and 2 connected
Relay open
Power 1 or 2 fails
Relay closed
No power connected
Relay open
Alarm Relay functionality
Twisted Pair Connections
The integrated auto-crossing function of all twisted pair ports makes the use of
crossed patch cables unnecessary. The switch automatically detects the pinout of
the connected cable and adapts the port accordingly. For all connections standard
1:1 twisted pair cables can be used.
The Auto-negotiation mechanism detects automatically the speed and
transmission mode (full or half duplex) between connected ports. A manual
configuration is not required.
