Red Lion NT100 - Manual (Page 3)

3
To remove the unit from the DIN rail, place a flat head screwdriver into the
release clip found at the bottom of the unit, and apply downward force on the
clip until it disengages the bottom of the unit from the DIN rail. Rotate the
bottom of the unit towards you and up at an approximate 15° upward angle to
completely remove the unit.
NT series switches are designed to be grounded, but the user has been given
the flexibility to float the unit when required. The best noise immunity and
emissions are obtained when the unit’s chassis is connected to earth ground via
a drain wire.
Users may run a drain wire & lug from the screw provided on the back face
of the enclosure. In the event the provided grounding screw has been lost, care
should be taken to limit the penetration of the outer skin by less than 1/4".
Failure to do so may cause irreversible damage to the internal components of the
switch.
Note: Ensure the power supply is grounded properly before applying power
to the grounded switch. This may be verified by using a voltmeter to determine
that there is no voltage difference between the power supply’s negative output
terminal and the chassis grounding point of the switch.
As an alternative grounding method, both V- legs of the power input
connector are connected to the chassis internally on the PCB. Connecting a
drain wire to earth ground from one of the V- terminal plugs will ground the
switch and the chassis. The power leads from the power source should be
limited to 3 meters or less in length.
If the use of shielded cables is required, it is generally recommended to only
connect the shield at one end to prevent ground loops and interference with low
level signals (i.e. thermocouples, RTD, etc.). Cat5e cables manufactured to
EIA-568A or 568B specifications are required for use with NT series switches.
TROUBLESHOOTING
For further technical assistance, contact technical support at the appropriate company numbers listed.
ORDERING INFORMATION
MODEL NO. DESCRIPTION PART NUMBER
NT100
4-Port Ethernet Switch NT104TX0
5-Port Ethernet Switch NT105TX0
8-Port Ethernet Switch NT108TX0