
WAY Systems, Inc.
200 Unicorn Park Drive
Woburn, MA 01801
www.waysystems.com
S90 Terminal Layout
Left Side View

TRANSACTIONS
Sale - Credit
RETURN
AUTH ONLY
VOID
FORCE
To start a Credit Sale transaction, swipe a card through the reader.
(If the card's magnetic stripe cannot be read, just start entering the account number from
the numeric keypad and press ENTER. Next, enter the card expiration date in a MMYY [2
digit month, 2 digit year] format and press ENTER.)
SALE
1. CREDIT CARD
2. DEBIT CARD
Press 1 to select Credit Sale.
SALE
ENTER AMOUNT
USD$0.00
Enter the amount of the Sale and press ENTER.
SALE
TOTAL
USD$12.57
CORRECT ? Y/N
To confirm amount of sale, press ENTER. Please wait while the transaction is
processed.
SALE
DO YOU WANT PRN
MERCHANT COPY?
Press ENTER to print the Merchant Copy of the Receipt. Press CANCEL if no
merchant receipt is required.
SALE
DO YOU WANT PRN
CUSTOMER COPY?
Press ENTER to print the Customer Copy of the Receipt. Press CANCEL if no
customer receipt is required.
The approval code is displayed briefly before the terminal returns to the main
menu.

RETURN
AUTH ONLY
VOID
FORCE
To start a Debit Sale transaction, swipe a card through the reader.
(Manual entry of the card is not allowed on Debit transactions.)
SALE
1. CREDIT CARD
2. DEBIT CARD
Press 2 to select Debit Sale.
SALE
ENTER AMOUNT
USD$0.00
Enter the amount of the Sale and press ENTER.
SALE
TOTAL
USD$12.57
CORRECT ? Y/N
To confirm amount of sale, press ENTER. Please wait while the transaction is
processed.
Have the customer enter their PIN and then press ENTER. Please wait while the
transaction is processed.
SALE
DO YOU WANT PRN
MERCHANT COPY?
Press ENTER to print the Merchant Copy of the Receipt. Press CANCEL if no
merchant receipt is required.
SALE
DO YOU WANT PRN
CUSTOMER COPY?
Press ENTER to print the Customer Copy of the Receipt. Press CANCEL if no
customer receipt is required.
The approval code is displayed briefly before the terminal returns to the main
menu.

Return – Credit and Debit
RETURN
AUTH ONLY
VOID
FORCE
To start a Return transaction, press the key next to Return.
Swipe the card through the mag stripe reader or enter the card number manually
using the numeric keypad. (If entering the card number manually, you will be
prompted to enter the expiration date - MMYY.)
RETURN
1. CREDIT CARD
2. DEBIT CARD
Press 1 to select a Credit Return or 2 to select a Debit Return.
RETURN
ENTER AMOUNT
USD$0.00
Enter the amount of the Return and press ENTER.
RETURN
TOTAL
USD$12.57
CORRECT ? Y/N
To confirm amount of the Return, press ENTER.
RETURN
TOTAL USD$12.57
ENTER PIN ****
For Debit Returns, have the customer enter their PIN and then press ENTER.
Please wait while the transaction is processed.
RETURN
DO YOU WANT PRN
MERCHANT COPY?
Press ENTER to print the Merchant Copy of the Receipt. Press CANCEL if no
merchant receipt is required.
RETURN
DO YOU WANT PRN
CUSTOMER COPY?
Press ENTER to print the Customer Copy of the Receipt. Press CANCEL if no
customer receipt is required.
The approval code is displayed briefly before the terminal returns to the main
menu.

RETURN
AUTH ONLY
VOID
FORCE
To start an Auth Only transaction, press the key next to Auth Only.
Swipe the card through the mag stripe reader or enter the card number manually
using the numeric keypad. (If entering the card number manually, you will be
prompted to enter the expiration date - MMYY.)
SALE
ENTER AMOUNT
USD$0.00
Enter the amount of the Sale and press ENTER.
SALE
TOTAL
USD$12.57
CORRECT ? Y/N
To confirm amount of sale, press ENTER. Please wait while the transaction is
processed.
SALE
DO YOU WANT PRN
MERCHANT COPY?
Press ENTER to print the Merchant Copy of the Receipt. Press CANCEL if no
merchant receipt is required.
SALE
DO YOU WANT PRN
CUSTOMER COPY?
Press ENTER to print the Customer Copy of the Receipt. Press CANCEL if no
customer receipt is required.
The approval code is displayed briefly before the terminal returns to the main
menu.

RETURN
AUTH ONLY
VOID
FORCE
To start a Void transaction, press the key next to Void
Enter the transaction sequence number of the transaction to be voided. The
sequence number can be found on the receipt or using function 1 (transaction
review).
VOID
TOTAL
USD$12.57
CORRECT ? Y/N
To confirm amount of the Void, press ENTER.
RETURN
DO YOU WANT PRN
MERCHANT COPY?
Press ENTER to print the Merchant Copy of the Receipt. Press CANCEL if no
merchant receipt is required.
RETURN
DO YOU WANT PRN
CUSTOMER COPY?
Press ENTER to print the Customer Copy of the Receipt. Press CANCEL if no
customer receipt is required.

RETURN
AUTH ONLY
VOID
FORCE
To start a Force transaction, select the key next to Force.
Swipe the card through the mag stripe reader or enter the card number manually
using the numeric keypad. (If entering the card number manually, you will be
prompted to enter the expiration date - MMYY.)
FORCE
ENTER AMOUNT
USD$0.00
Enter the amount of the Force and press ENTER.
FORCE
TOTAL
USD$12.57
CORRECT ? Y/N
To confirm amount of sale, press ENTER.
Enter the approval code and press ENTER. Please wait while the transaction is
processed.
SALE
DO YOU WANT PRN
MERCHANT COPY?
Press ENTER to print the Merchant Copy of the Receipt. Press CANCEL if no
merchant receipt is required.
SALE
DO YOU WANT PRN
CUSTOMER COPY?
Press ENTER to print the Customer Copy of the Receipt. Press CANCEL if no
customer receipt is required.
The approval code is displayed briefly before the terminal returns to the main
menu.

Offline Mode/Upload
If there is insufficient signal to process transactions Online, the terminal will automatically go into Offline
Mode. This means that the transactions have not been authorized but are being held in the terminal until
signal is reacquired. Receipts will be printed with OFFLINE in the title and TXN ACCEPTED will be
displayed instead of an approval or denial. Once signal is reacquired, you must Upload the transactions
for the authorization.
NOTE:
Offline transactions are run at your risk. Final authorization does not occur until transactions are uploaded
for approval.
End of Shift/End of Day
At the end of each shift or at the end of the day, it is suggested that you run reports and clear
transactions from the terminal. To run a Transaction Totals Report, press the key labeled [FUNC] then 71
and [ENTER]. If you want to run a Transaction Details Report, press the key labeled [FUNC] then 75 and
[ENTER].
To clear transactions from the terminal, press the key labeled [FUNC] then 76 and [ENTER]. Enter the 4
digit Manager password (default is 0000) and [ENTER]. To confirm that you want to clear all
transactions, press the [ENTER] key. If you do not want to clear the transactions, press the [CANCEL]
key.
Reprint Receipts
To reprint receipts from the last transaction, press [FUNC] key then 72 and [ENTER].
To reprint receipts from any transaction still in the terminal, press [FUNC] key then 73 and [ENTER].
Enter the Tran Seq # and [ENTER].
Function Codes
SPECIAL FUNCTIONS From the Idle Screen:
Press the blue [FUNC] key then:
REPRINT RECEIPT BY SEQUENCE NUMBER
CLEAR TRANSACTIONS FROM THE TERMINAL

Updating Parameters and Receipt Information
The S90 updates itself from WTG every time it is turned on. If a change is needed, just reboot the
terminal to get the new information from WTG.
Activating the S90
When the terminal has been assigned to a new merchant in WTG, the following steps complete the
Deactivation and Activation process.
1) Power Cycle the terminal
2) Before pressing any other key - Press Function 0 (password 0000)
3) The terminal will go through “GPRS Active, Connecting XX Parameter OK, Activation OK, Init
Key OK”.
4) When completed, the terminal is ready to use by the new merchant.
Tip Feature
When the Tip feature is On, the S90 will prompt for the Transaction Amount, the Tip Amount and will total
the 2 amounts for the Authorization. It will NOT print a Tip Receipt before the Approval like the
MTT15XX/way5000.