Lantronix
SESPM1040-541-LT-xx Install Guide
33772 Rev. F
Page
39
of
64
Power Connection Procedures
-AC Version
Plug into approved AC outlet using supplied AC power cord. If the application calls for routing through conduit or
hard wiring, the AC plug can be cut off of the supplied cord and hard wired into junction box (if code allows).
(The provided wire gland can be replaced with a conduit connector.) We do not recommend taking the
protective cover off of the switch to re-wire. The AC cable is already connected to the Ground Post in the switch
at the factory. You must install a second ground wire; see
Surge Protection / Grounding and Bonding
on page
-DC Version
Route the DC power cable through the designated Power Wire gland.
Connect DC wires to DC Power Terminal Block in upper left corner of enclosure. Note polarity as indicated;
the -DC switch is diode protected against reverse polarity.
Warning
: Do not add any large (>100 µH) common
mode chokes as they may interfere with the operation of the inrush current limiting function of the switch.
-PD Version
The -PD version can be powered in one of three ways:
1)
using PoE from an –AC or –DC Version,
2)
from a –DC
version using Parallel Copper/Fiber (composite) Cable, or
3)
from a DC Power Supply.
If powering via PoE, connect an Ethernet cable from the PSE to the PD Port as shown on the next page.
If powering over copper cable (with parallel fiber optic cable), splice DC cable to Ethernet cable stub, plug stub
into a PSE port on a –AC or –DC switch, then connect wires to screw terminals on the hybrid connector per the
diagram below. Note that the hybrid connector is polarity agnostic on the –PD switch.