How do I expand the SK-5207 from 8 zones to 16 zones using the 5210 Zone Expander?
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The Model 5210 Zone Expander adds eight Class B (Style A) zones to the SK-5207, expanding the system to 16 total zones (Page 7, 30) [1].
Each zone requires a 4.7kΩ end-of-line (EOL) resistor wired in parallel with the farthest normally open contact (Page 30) [1].
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Turn panel power OFF (Page 30) [1].
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Fit the 5210 metal bracket over the 5198 power supply unit in the 5207 cabinet (Page 30) [1].
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Secure the bracket with the provided screws and snap the PC board onto the four plastic standoffs (Page 30) [1].
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Plug the 8-pin cable from the 5210 PC board into the P2 connector on the 5207 (Page 30) [1].
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Ensure the maximum loop resistance does not exceed 30 ohms (Page 30) [1].