Lathem LTR-RSS Time Clock User Manual


 
LTR-RSS User’s Guide
2
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
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B
A
U
64 32 16
8
4
2
1
D-
D+
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