Lantronix
SM24TBT2DPA Install Guide
33737 Rev. L
Page
21
of
38
Installing a Power Supply
CAUTION
: Hot Surfaces.
Power Connection Warning
: Connect the power supply to the switch first, and then connect the power supply to
power. Otherwise catastrophic product failure may occur.
1.
Verify that power is off to the DC circuit that you are going to attach to the switch PoE DC-input connector.
This can be either of the two power supplies (AC-input or DC-input) or site source DC.
2.
As an added precaution, place an appropriate safety flag and lockout device at the source power circuit
breaker, or place a piece of adhesive tape over the circuit breaker handle to prevent accidental power
restoration while you are working on the circuit.
Procedure
If using only one power supply, it can be installed in either power supply bay, and the Face Plate must be installed
in the other bay.
1.
Remove the blank Face Plate to use the one open Power Supply slot. Save the Face Plate and screws.
2.
Carefully insert the Power Supply into the chassis until the Locking Lever clicks.
3.
Fasten the AC Power Supply with the Mounting Screws (and Power Cord Retainer, if used).
4.
Continue with “
Connecting the AC Power Cord
Note
: This product is to be connected only to UL listed PoE networks and without routing to the outside plant.
Warning
: Class I Equipment. This equipment must be earthed. The power plug must be connected to a
properly wired earth ground socket outlet. An improperly wired socket outlet could place hazardous voltages on
accessible metal parts.
Indicates shock hazards that result in serious injury or death if safety instructions are not followed.
Disconnect all power sources; indicates to unplug all power cord(s) to disconnect AC power.
