Contemporary-control-systems EISC Configurable Switches Installation Guide Manual do Utilizador descarregar pdf (Página 4)

TD021000-0IF

Powering

The EISC requires low-voltage power — AC or DC — via a removable

keyed four-pin connector which accepts 16–18 AWG conductors.

Consult the specifications for power requirements. Power options are

explained below.

NOTE: This device is intended for use with Class 2 circuits.

DC Powered

The EISC accepts a voltage range of 10–36 VDC and draws a maximum

current value commensurate with 12-watt power consumption. Power

conductors should be sized accordingly. Ground is directly connected to

zero volts and the equipment chassis is isolated from zero volts. The DC

voltage input connections are reverse-polarity protected.

Figure 2 — DC Powered

Redundant DC Powered

Redundant diode-isolated DC power input terminals are provided so that

the user can connect redundant power to the unit for operating despite the

loss of primary power. Both sources must provide 12 watts of power.

Figure 3 — Redundant DC Powered

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Contemporary-control-systems EISC Configurable Switches Installation Guide Manual do Utilizador Página 4