Emerson E2 User Manual download pdf (Page 34)

2-10 • E2 RX/BX/CX I&O Manual 026-1610 Rev 13 14-SEP-2011

2.2.6 4AO Analog Output Board

The 4AO Analog Output Board (P/N 815-3030) (Fig-

ure 2-13) is configured with four analog output connec-

tions that provide a variable voltage signal to any of four

analog devices that may be controlled by a single E2. Two

4-20mA outputs are provided for channels 1 and 2. The

4-20mA outputs provide a variable current for applications

that are either externally powered or that require power

from the 4AO board.

The previous generation 4AO Analog Output Board,

(P/N 810-3030) (Figure 2-14) is configured with four ana-

log output connections that provide a variable voltage sig-

nal to any of four analog devices that may be controlled by

a single E2.

2.2.7 8DO Digital Output Board

and PMAC II Anti-Sweat Controller

For control of anti-sweat heaters, Retail Solutions sup-

plies the 8DO Digital Output board (P/N 810-3050). The

8DO has eight outputs which may pulse up to 150mA at

12VDC.

Since the 8DO is primarily designed to control anti-

sweat heaters, the 8DO is the heart of Retail Solutions’

Pulse Modulated Anti-Sweat Control (PMAC II) panel.

The PMAC II (P/N 851-1000) provides 16 channels of

anti-sweat control circuitry. The PMAC II panel combines

the 8DO with high-capacity relays in a single enclosure,

providing 256 total amps of anti-sweat heater operation.

The 8DO is shown in Figure 2-15. The PMAC II is

shown in Figure 2-16.

Figure 2-13

- 4AO Analog Output Board (P/N 815-3030)

Figure 2-14 - 4AO Analog Output Board - DISCONTINUED

Transmitting (TX ) and Receiving (RX) LEDs

Hand-held Terminal (HHT) Jack

Alarm and Status Indicator LEDs

4-20mA Channels (2)

Analog Outputs (4)

Figure 2-15 - 8DO Digital Output Board

Figure 2-16 - PMAC II Anti-Sweat Control Panel

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Emerson E2 User Manual Page 34