Lathem PC100 - Manual (Page 12)

PC100 Terminal User’s Guide
6
4. See the Cable Wiring Diagrams for detailed connection points
Connecting Terminals via RS-485 (Multi-Drop Configuration)
A multi-drop network connects up to 31 terminals or sync time devices to the
computer. You wire the terminals to junction boxes running in a single line
starting from the SWIFT-485+. Terminals can be located up to 4000 feet from
the computer
1. Run Category 3 (minimum) cable from the SWIFT-485+ to the first J-Kit
(junction box)
2. Use a cable (up to 4 feet long) with an RJ-11 connector on both ends, and
plug one end into the J-Kit (junction box)
3. Plug the other RJ-11 connector to a terminal
4. Connect the power cord (AC adapter) to the terminal and plug the cord
into a wall outlet
5. For the next terminal, run cable from the previous J-Kit (junction box) to
the next J-Kit (junction box) and repeat steps 2, 3 & 4
6. See the Cable Wiring Diagrams for detailed connection points
For more details or how to supply AC power to the PC100-R from the SWIFT-
485+, see the SWIFT-485+ User’s Guide.
Up to 31 Terminals
Max 4000 ft from SWIFT-485+ to Last Terminal
SWIFT-485+
J-Kit (junction box)