Figure 10-3. Wireless communication contact closure system (WCCCS). (A) Two-channel voltage-to-relay converter connected to 16-channel wireless sending unit #1 for high-performance liquid chromatography (HPLC) autosampler; (B) two-channel voltage-to-relay converter connected to wireless sending unit #2 for ultra-high performance liquid chromatography (UHPLC) autosampler; (C) wireless receiving modules attached to wire distribution trace with switches mounteddleft two receiving modules for UHPLC, right two receiving modules for HPLC; (D) WCCCS receiving module and switching system installed and operational. Switches in UP position select contact closure from HPLC, in DOWN position select contact closure from UHPLC.

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