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Honeywell TDC 2000 Data Hiway Port (DHP) Controller ROM circuit board. Legacy Distributed Control System (DCS) spare.
Honeywell TDC 2000 Operator Station 128K memory circuit board. Legacy Distributed Control System (DCS) spare.
Honeywell TDC 2000 Data Hiway Port (DHP) 8K x 17 CMOS RAM memory circuit board. Legacy Distributed Control System (DCS) spare.
Honeywell TDC 2000 Data Hiway Port (DHP) RS-232C transceiver circuit board. Legacy Distributed Control System (DCS) spare.