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Connecting the JSA3800 to Power


Connecting the JSA3800 Appliance to Ground

To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must adequately ground the JSA3800 appliance before connecting it to the power source.

Grounding for the JSA3800 appliance is provided through the power supply ground. Ensure that you connect the AC power supply module in the appliance to a grounded AC power outlet by using an AC power cord (with the grounding pin) appropriate for your geographical location.

Connecting the JSA3800 Appliance to a DC Power Source

Before connecting your JSA3800 appliance to a DC power source:

  • Ensure that you have taken the necessary precautions to prevent ESD damage.

  • Ensure that you have connected the JSA3800 appliance chassis to earth ground.

Required tools and parts:

  • DC power source cables (12-14 AWG) with ends of the wire stripped ~12 mm and twisted

  • Phillips (+) screwdriver, number 1


Before you connect power to the JSA3800 appliance, attach the ground wire in one of the below configurations to meet the safety requirements and to ensure proper operation:

  • Both power supply ground terminals

  • One or both of the chassis ground terminal(s) located to the left of the power supply modules

  • Both power supply ground terminals

You connect DC source power to the JSA3800 appliance by attaching power cables from the external DC power sources to the terminal studs on the DC power feed faceplates.


DC-powered JSA3800 appliances are intended for installation only in restricted access locations.


Before you perform the following procedure, ensure that power is removed from the DC circuit. To ensure that all power is off, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position.

To connect the DC source power to the JSA3800 appliance:

  1. Ensure that the input circuit breaker is open so that the voltage across the DC power source cable leads is 0 V, and so that the cable leads will not become active while you are connecting DC power.
  2. Connect the stripped and twisted wires to the wire clamps under the DC terminal screws on the back panel of the JSA3800 appliance.Note

    The red cable should be connected to the V+ terminal, and the black cable should be connected to the V- terminal, respectively.

  3. Use the terminal screws to secure the power source cables to the power feed on the JSA3800 appliance by attaching the twisted wires that are attached to the cables to the appropriate terminals.
  4. Attach the plastic safety cover.