Lathem PC2000 - Manual (Page 15)

PC2000/PC100 Terminal User’s Guide
7
Connection Instructions
Most PCs have two COM ports – the first (COM1) is usually a 9-pin port,
while the second (COM2) may either be a 9-pin or a 25-pin port. If your only
open COM port has 25 pins, you need a 25- to 9-pin adapter, which you can
purchase from your dealer or any computer store. (See illustration below).
Consult your computer user’s guide or ask your dealer if you need help with
your computer’s COM ports.
Connecting the PayClock via RS-232
1. Turn the PayClock so its back faces you
2. Plug the power cord (AC adapter) into the PayClock, keeping the cord
slack
3. Plug the other end of the power cord into a wall outlet
4. Connect either end of the serial cable to the PC2000 and tighten the cable
screws
5. Connect the other end of the serial cable to an open COM port on your
computer. All serial ports are raised pin (male) connectors
Connecting Terminals via RS-485
When selecting your installation method, the type of wire that will be used is
important. Silver Satin (Modular) cable can be used for short distances less
than 100’ to achieve communications. Category-3 or Category-5 cable with
twisted pairs should be used for distances greater than 100’, in installations
using J-Kits or in areas where the cable may run near a device that transmits
an RF frequency. Do not use J-Kits with modular wire
For details, see the Cable Wiring Diagrams appendix.