Comtrol ES8509-XT - Manual (Page 10)

10 - Connect the Digital Input and Relay Output RocketLinx ES8509-XT User Guide: 2000557 Rev. C
Hardware Installation
b. Tighten the wire-clamp screws to prevent the wires from coming loose.
• PWR1 and PWR2 support power redundancy and reverse polarity protection.
• If both power inputs are connected, the ES8509-XT is powered from the highest connected voltage.
• The ES8509-XT can emit an alarm if PW1 or PW2 are no longer receiving power. See the Warning
discussion on Page 114 to configure an alarm.
Note: Use a UL Listed Power supply with an output rating of 10.5 to 60VDC with a minimum of 2A. The
recommended operating voltage is 24VDC.
2. Connect a ground wire between the chassis and earth ground using
12-24AWG wire to ensure that the ES8509-XT is not damaged by
noise or electrical shock.
a. Loosen the earth ground screw on the bottom of the ES8509-
XT.
b. Insert the ground wire.
c. Tighten the ground screw after the earth ground wire is
connected.
Connect the Digital Input and Relay Output
The ES8509-XT provides one digital input and one digital output (dry relay output) on the terminal block
connector on the bottom of the unit. The fault conditions can be configured in the web user interface or
Command Line Interface (CLI) and include:
• DI State
• Power failure
• Ethernet port link break
• Dry output
• Ping failure
• Super Ring failure
You can configure events using one of the ES8509-XT user interfaces ( Fault Relay on Page 114) or the
Command Line Interface ( Global Configuration Mode on Page 137).
The Digital Input pin can be pulled high or low so that the connected equipment can actively drive these pins.
The web user interface allows you to read and set the value to the connected device. The power input voltage
of logic low is 0 to 10VDC and logic high is 11 to 30VDC. Do not apply a higher voltage than the specification;
it may cause internal circuit damage or a cause an incorrect DI action.