N-Tron
®
Series 700/7000 Managed Industrial Ethernet Switch Hardware Manual - Volume I
2-43
Hardware Installation
Revised 2019-08-22
Grounding the Switch
Drawing No. LP0988
2.4.2
708M12
and
716M12
Models
The 708M12 model has a redundant 10-30 VDC power input and the 716M12 model has a redundant 10-49 VDC
power input. HV (High Voltage) 40-160 VDC models are also available for both the 708M12 and 716M12.
Recommended 24 VDC power supply, similar to Red Lion’s P/N NTPS-24-1.3.
For HV models, recommended 48 VDC power supply, similar to Red Lion’s P/N NTPS-48-2.
Verify that the proper input voltage is connected to the switch before powering on the unit.
Note:
LEDs are described in detail in
.
2.5
Grounding
the
Switch
The grounding of any control system is an integral part of the design. Red Lion switches are designed to be
grounded, but the user has been given the flexibility to float the switch when required. The best noise immunity and
emissions (i.e. CE) are obtained when the Red Lion switch chassis is connected to earth ground via a drain wire
(20 gauge minimum size wire). Some Red Lion switches have metal din-rail brackets that can ground the switch if
the din-rail is grounded. In some cases, Red Lion switches with metal brackets can be supplied with optional plastic
brackets if isolation is required.
1.
Connect the power cable from the power supply to the Unit M12 A-coded
power connector.
2.
Male end pins of the power cable and corresponding female power connector
of the unit must be properly aligned before the connection can be completed.
3.
Connect the power cable into the power supply.
4.
All unit LED’s will flash on momentarily when the power is first connected.
5.
Verify that the power LED stays on (Green).
Note:
Either V
1
or V
2
can be connected to power for minimal operation. For redundant applications both
inputs must be provided from the same Class 2 source. The power cord should be limited to less
than 10 meters in order to ensure optimum performance.
708M12 716M12
