General Requirements:

1. All POS equipment must be on a single, dedicated 20 AMP Isolated Ground Circuit.
2. In the event that the size of the POS system requires two or more 20 AMP circuits all circuit breakers must be in the same panel and adjacent, having circuit breakers on different phases is absolutely forbidden.
3. The POS dedicated circuit(s) uses only one electrical panel and circuit breaker(s) with an insulated ground wire that is completely isolated from all other electrical services in the restaurant.
4. The insulated green grounding wires must be tagged at the electrical panel for identification.
5. The breaker(s) should be labeled and a breaker lock installed to prevent the power from being turned off by accident.
6. The panel supplying POS power must not source power for any inductive loads (A\C Units, Motors, etc) or loads that switch a large amount of current when turning On\Off such as large heating elements.
7. The power must be 120 VAC, single phase, 3-wire, 12 gauge or heavier.
8. The POS wiring is run in EMT or rigid metal conduit with no other wiring OF ANY KIND in this conduit or EMT. NMB (Non-Metallic-Building) wire or Romex IS NOT ACCEPTABLE.
9. The circuit must be tested to provide between 110 to 125 volts at up to 20 amps with no more than a 5-volt difference from no load to full load.

At POS Terminal Locations:

10. Each POS Terminal location should have an Orange Isolated Ground Duplex Twist Lock Receptacle NEMA configuration L5-15R with a current rating of at least 15 Amps. A duplex receptacle will provide power for the most common configuration, a POS Terminal and Receipt Printer. If you are using a generic PC with some type of POS software then additional receptacles may be required for example the PC, Monitor and Receipt Printer. Also don't forget about additional POS items that might be located with the POS Terminal like a Modem. Receptacles should be located within three (3) feet of the POS hardware location.

At Kitchen Video System (KVS) Locations or other equipment above ceiling:

11. Since it is unlikely that non-POS equipment will be plugged into these receptacles these locations may have an Orange Isolated Ground Duplex Straight Blade Receptacle NEMA configuration 5-15R with a current rating of at least 15 Amps. A duplex receptacle will provide power for the most common configuration, a KVS Controller and Video Screen. Receptacles should be located within three (3) feet of the POS hardware location.

Back Office PC, HUB, etc:

12. Since it is unlikely that items like refrigerators, heat lamps, drink machines, etc. will be plugged into these receptacles these locations may have an Orange Isolated Ground Duplex Straight Blade Receptacle NEMA configuration 5-15R with a current rating of at least 15 Amps. A duplex receptacle will need to be located near the ceiling for the CAT5 Network HUB and an additional receptacle under the desk for the PC. Make sure receptacles are provided for additional items like Modems, DSL, etc. The printer for the PC should not be connected to the POS Isolated Ground circuit. Receptacles should be located within three (3) feet of the hardware location.

Testing to be done by qualified/licensed electrician

1. Turn Off POS circuit breaker(s) and verify all POS outlets are zero (0) volts. Verify all non-POS equipment remains on.
    
2. Disconnect Green ground wire at breaker panel and verify:
    
   1. Voltmeter, building ground to POS ground wire is       Volts, should be 0 VAC.
   2. Ohm meter, building ground to POS ground wire is       Ohms, should be open.
   3. Ohm meter, building ground to POS conduit is       Ohms, should be shorted.
   4. Ohm meter, building ground to POS outlet ground is       Ohms, should be open.
   
    
3. Reconnect Green ground wire at breaker panel and verify:
    
   1. Ohm meter, building ground to POS outlet ground is       Ohms, should be shorted.
   
    
4. Turn on POS circuit breaker and verify:
    
   1. Hot to Neutral, 110 to 125 VAC @ no load, less than 3 VAC change at full load
   2. Hot to Ground, 110 to 125 VAC @ no load, less than 3 VAC change at full load
   3. Hot to Outlet Case, 110 to 125 VAC @ no load, less than 3 VAC change at full load
   4. Neutral to Outlet Case must be less than 1.5 VAC no load to full load
   5. Ground to Outlet Case must be less than 1.5 VAC no load to full load
   6. Ground to Neutral Case must be less than 1.5 VAC no load to full load