EAW DX810 AC Power Considerations, Connecting the Logic I/O, Connecting the Remote BUS

Connecting the LOGIC I/O

This is a 25-pin D-Sub connector. There are 10 programmable logic inputs and 10 programmable logic outputs. In addition, there is an 11th fixed logic output to indicate "System OK." They are all active- low circuits. Use 22 gauge wire for these connections.

LOGIC I/O

25	13	N/C
GROUND
		N/C
SYSTEM OK LOGIC OUT 11
		LOGIC IN 10
LOGIC OUT 10
		LOGIC IN 9
LOGIC OUT 9
		LOGIC IN 8
LOGIC OUT 8
		LOGIC IN 7
LOGIC OUT 7
		LOGIC IN 6
LOGIC OUT 6
		LOGIC IN 5
LOGIC OUT 5
		LOGIC IN 4
LOGIC OUT 4
		LOGIC IN 3
LOGIC OUT 3
		LOGIC IN 2
LOGIC OUT 2
		LOGIC IN 1
LOGIC OUT 1
		+5VDC
14
	1

LOGIC I/O Pinout Connection

The logic inputs are active-low with internal pull- up resistors connected to +5 VDC. Use a normally open switch connected between the logic input and ground (pin 25). When the switch is closed, the logic input is active. Depending on the function assigned to the logic input, a toggle switch or a momentary switch may be used.

LOGIC INPUT

GROUND	25	13	N/C
			N/C
			LOGIC IN 10
			LOGIC IN 9
			LOGIC IN 8
			LOGIC IN 7
			LOGIC IN 6
			LOGIC IN 5
			LOGIC IN 4
			LOGIC IN 3
			LOGIC IN 2

14LOGIC IN 1

1

LOGIC INPUT Connection

The logic outputs are active-low, open-collector outputs with internal pull-up resistors. Connect the indicator or activation circuit between the logic output and +5 VDC (pin 1). When the output is active, the output is 0 VDC. The logic outputs can supply up to 10 mA of current each.

LOGIC OUT

25 13

GROUND SYSTEM OK LOGIC OUT 11 LOGIC OUT 10

	LOGIC OUT 9
	LOGIC OUT 8
	LOGIC OUT 7
	LOGIC OUT 6
	LOGIC OUT 5
	LOGIC OUT 4
	LOGIC OUT 3
10mA Maximum	LOGIC OUT 2

LOGIC OUT 1	14	+5VDC
		1

LOGIC OUTPUT Connection

Note: Pins 12 and 13 are not used at this time. They are reserved for future updates. Do not connect anything to these pins.

Connecting the REMOTE BUS

This is a 3-pin Phoenix-type connector specifically for connecting the optional remote control peripherals. Use a high-quality three-conductor shielded cable to make this connection, such as Belden 8451, 9451, or equivalent. The lower the nominal capacitance of the wire, the more distance you can have between the remote control and the DX810. This is in order to avoid transmission losses.

Strip the wire back about 1/4" inch. Insert the wire as far as it will go into the appropriate hole in the supplied Phoenix-type connector. Then tighten down the screw with a small slot-head screwdriver. It is recommended that you use 18, 20, 22, or 24 gauge wire for the remote control connections. The guage used depends on the distance between the DX810 and the remotes.

The REMOTE BUS connector is wired as follows:

Pin 1 = Ground (Shield)

Pin 2 = Data + (with +24 VDC power) Pin 3 = Data – (with +24 VDC power)

Note: See the instructions with the remote control for more information.

AC POWER CONSIDERATIONS

The DX810 can accept an AC voltage ranging from 90 V to 240 V without having to reconfigure the primary wiring. This is due to the sophisticated design of the switching power supply. Each DX810 draws an average of 1 amp of AC line current at 120 VAC.

Warning: Always use a 3-conductor AC power cord with a safety ground connection. Never remove the ground pin or attempt to bypass it. This is very dangerous.

8 – DX810