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CS175-275-575-875 Installation Guide
8. Flip down the PCB mounting tray.
9. Attach the pillars for the CS535 voice module to the board.
10. Attach the CS535 voice module to the board via the jumpers and pillars.
11. Connect the CS534 listen-in module and CS535 voice module with the ribbon cable.
12. Attach the pillars for the CS216 input expander or CS507 output module to the board.
13. Mount the CS216 input expander or CS507 output module on the board.