Lathem PC3500 User Manual

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PC100 Terminal User’s Guide 
 
C H A P T E R   3  
Connecting to the Computer 
After mounting your PayClock on the wall, you need to connect it to your 
computer. You can connect the PayClock terminal to the computer using an 
RS-232 cable or RS-485 cable. Choose the setup that best suits your needs. 
 
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 the jack end of the serial cable to the PC100 
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. 
 
The Swift-485+ allows you to connect PayClock terminals to the modular 
ports and to the screw terminal blocks. You can use either of the screw 
terminal blocks to connect the PC2000, PC100-R or PC3500 terminals. The 
PC100 / PC2000 modular port is set up to use with the PC2000 and PC100-R 
terminals. The PC2500 modular port is set up to use with the PC400 terminals 
(not currently available). The RS232 connection to the PC is made simple 
using a stereo type plug in jack.