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Optional connections, Relay and trouble outputs option, Warning caution warning warning – Chamberlain LM21XP User Manual

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Optional connections, Relay and trouble outputs option, Warning caution warning warning | Chamberlain LM21XP User Manual | Page 8 / 16 Optional connections, Relay and trouble outputs option, Warning caution warning warning | Chamberlain LM21XP User Manual | Page 8 / 16