block connect a twisted-pair (typically Cat-3) low-voltage cable to the Master’s RS-485 port, while the other two screws connect continuous 9-24V AC/DC power to the unit.
Circuit Board
1 2
3 4 5
6 7
8
B A U
64
32
16
8
4
2
1
D- D+ ~ ~
See also other documents in the category Lathem Clock:
