Honeywell 4219 CONSOLE LINE 8 ZONE EXPANDER MODULE
Spesifikasi :
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Can be located anywhere along the four-wire addressable ECP bus
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Simple DIP switch addressing to select range of zone numbers
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Adds up to eight class B zone inputs to an ECP bus addressable system, each with 1K end-of-line resistor
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Class B loops provide a broad, 300 ohm tolerance
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Supervised for open, shorted and normal circuit conditions.