Unitec POS4000/V2 - Manual (Page 97)

POS4000
Document Number: POS4003 89
Document Title: POS4000/V2 Operations Manual
The correct communication wiring is pin 1 to 1, pin 2 to 2. The shield should be
connected to earth ground at the interface board (connector C pin 4). See the
wiring diagram in the back of this manual and the table on the following page for
more detail.
WIRING INFORMATION FOR POS4000 INTERFACE BOARD
CONNECTOR-PIN COMMUNICATIONS LINK TO POS4000 CONSOLE
C-1
<> Pin 1 (RS485 -)
C-2 <> Pin 2 (RS485 +)
C-3 <> Pin 3 (Signal GND) (not connected)
C-4 <> Earth Ground (connected to Earth manually or via Hard
wired Earth ground cable
CONNECTIONS TO CAR WASH CONTROLLER
D-1 > Car Wash "IN-USE" Signal
D-2 > Car Wash "IN-USE" Neutral
A1-8 > Car Wash Voltage to activate wash functions
B-1 < To car wash controller "Function 1"
B-2 < To car wash controller "Function 2"
B-3 < To car wash controller "Function 3"
B-4 < To car wash controller "Function 4"
B-5 < To car wash controller "Function 5"
B-6 < To car wash controller "Function 6"
B-7 < To car wash controller "Function 7"
B-8 < To car wash controller "Function 8"
*** See next table for "Function" descriptions
CONNECTIONS TO CUSTOMER COIN BOX
A-7 > Power for customer lights
A-6 < "Out-of-Service" light
A-5 < "Enter Wash" light (Code valid)
A-4 < "Code Accepted / Wait" light
A-3 < "Reenter Code" light (code invalid)
D-3 > Quarter mechanism voltage pulse (credit)
D-4 > Quarter mechanism voltage neutral
D-5 > Bill mechanism voltage pulse (credit)
On POS4000 Interface boards with Version 6.6 Hardware the Pin
C-4 is connected internall
Note:
y to Signal Ground.