Electro-Voice 1252, 250 operation manual Steps to Determine Power Needed

5.12: Steps to Determine Power Needed

•Available power for All Ports of the Nexus 1250/1252 is 12 VA.

•Refer to the table below to determine the VA Ratings for I/O modules and displays.

•Add together the VA Ratings for I/Os and Displays in use.

•Compare Available Power to Power Needed to determine if you must use an additional power source. EIG recommends the PSIO 12V power source. See section 9.2.1.

5.13: I/O Modules’ Factory Settings and VA Ratings

All I/Os are shipped pre-programmed with a baud rate of 57600 and addresses. The table below details the factory-set address for each module and the VA Ratings for I/O modules and Nexus displays. Refer to the previous section (section 5.12) for the steps to determine if you must use an additional power source. For programming, refer to Chapter 8 of the Communicator EXT User Manual.

I/O MODULES’ FACTORY SETTINGS AND VA RATINGS
MODEL NUMBER	MODULE	ADDRESS	VA RATING
1mAON4	0-1mA, 4 Analog Outputs	128	2.7 VA
1mAON8	0-1mA, 8 Analog Outputs	128	3.2 VA
20mAON4	4-20mA, 4 Analog Outputs	132	5.0 VA
20mAON8	4-20mA, 8 Analog Outputs	132	8.5 VA
8A11	0-1mA, 8 Analog Outputs	136	2.3 VA
8A12	0-20mA, 8 Analog Outputs	140	2.3 VA
8A13	0-5V DC, 8 Analog Outputs	144	2.3 VA
8A14	0-10V DC, 8 Analog Outputs	148	2.3 VA
4RO1	4 Latching Relay Outputs	156	2.7 VA
4PO1	4 KYZ Pulse Outputs	160	2.7 VA
8D11	8 Status Inputs (Wet/Dry)	164	1.0 VA
	NEXUS DISPLAYS’ VA RATINGS
P40N, P41N or P43N	Nexus LED Display		8 VA
P60N	Nexus Touch Screen Display		5 VA

Electro Industries/GaugeTech Doc # E107706 V1.25 5-15