Comtrol RocketLinx ES8520-XT Quick Installation Manual page 3

20 port managed industrial switch
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2.
Tighten the wire-clamp screws to prevent the wires from coming loose.
3.
Connect an appropriate ground wire between the chassis ground screw
and earth ground to ensure that the ES8520-XT is not damaged by
noise or electrical shock.
a. Loosen the chassis ground screw on the bottom of the unit.
b. Tighten the screw after the ground wire is connected.
Wiring the Relay Output (DO)
The relay output alarm contacts are on the terminal block connector on the
bottom of the ES8520-XT.
The relay contact supports up to 1A at 24VDC.
The relay output (DO) is controlled by the pre-defined operating rules. To
activate relay output function, refer to the RocketLinx ES8520-XT User Guide.
Wiring the Digital Input (DI)
The Digital Input (DI) contacts are on the terminal block connector on the
bottom of the ES8520-XT. The contacts accept one external DC type signal
input and can be configured to send alert message through Ethernet when
the signal is changed.
Trigger
Switch
24VDC
+
DI
Digital Input
1 = High Output: 11-30VDC
0 = Low Output: 0-10VDC
Buzzer/
PLC Input
1.0A
+
-
-
DO
2
Power
24VDC

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