Power And Ground On Tx3-Er-8 And Tx3-Er-8-A; Figure 15. Earth Ground; Figure 16. Power - Mircom TX3-ER-8 Installation Manual

2.9

Power and Ground on TX3-ER-8 and TX3-ER-8-A

TX3-ER-8 and TX3-ER-8-A use the PS-4P power supply, which is a 16 VAC/
40 VA, CSA approved Class 2 Power Transformer, plug-in.
Attention: Connect all relay boards and elevator controller wires to the
Connect the included 16 AWG wire to the earth ground.
Connect the power to the 16VAC IN terminal, and then turn on the power.
Elevator Restriction System Installation and Operation Manual
30
ERU before connecting the power.
Earth Ground
(16 AWG)
Figure 15. Earth Ground
TX3-ER-8(-A)
16 VAC
IN
Figure 16. Power
Installing the Elevator Restriction Unit
PS-4P Transformer
(located in electrical room)
18 AWG