Meter Operation - Prepayment Mode Released
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Cashpower Gemini PLC
– User Guide
© Gyr (Pty) Ltd
7.4.2.1
Voucher Accepted
The running ladder pattern on the credit wedge is displayed.
7.4.2.2
Voucher Accepted as a Valid STS Key Change Number (S TS Only)
Note: Two vouchers are required for a STS key change.
The running ladder pattern on the
credit wedge
is displayed.
The
key revision
and
key type
, followed by the
tariff index
, is displayed during the above ladder
sequence.
7.4.2.3
Voucher Overflow Rejection
This occurs if the voucher is valid, but rejected because the
current credit register
would overflow.
The following is displayed:
The happy face icon is flashed.
The sad face icon is turned on for 10 seconds.
7.4.2.4
Incorrect Voucher
If the voucher is rejected, the following will be displayed:
The happy face icon is turned off.
The sad face icon is flashed for the reject time.
The reject function is included to discourage the entry of random numbers in an
attempt to defraud the meter. The
reject time
will eventually settle at a maximum
time of 82.5 seconds.
7.4.2.5
Duplicate Voucher
If the voucher is rejected because it has previously been entered i.e. a duplicate voucher:
Both the
happy face
and
sad face
icons are flashed simultaneously for 5 seconds.
7.4.2.6
Expired Voucher (STS Only)
If the voucher is rejected because it is older than the oldest voucher in the meter log i.e. „expired‟:
Both the
happy face
and
sad face
icons are alternately flashed for a period of 5 seconds.
7.5
Voucher Decryption and Processing
The meter will accept vouchers in either proprietary format or STS format. Both formats cannot,
however, be active at the same time. The transfer specification is configured at the time of
manufacture.
STS Algorithm
The meter accepts information transferred as specified in the
Standard Transfer Specification release
1.0:1995
with key typing included. Key expiry is not implemented.
STS vouchers comprise 20-digit numbers.
The following STS voucher types will be recognised and accepted:
Electricity
credit
(meter-specific voucher)
– 7.5.1.1.
Set
1st dispenser key
(meter-specific voucher)
– 7.5.1.2.
Set
2nd dispenser key
(meter-specific voucher)
– 7.5.1.3.
Clear
tamper
(meter-specific voucher)
– 7.5.1.4.
Set maximum
power load
or
power limit
level (meter-specific voucher)
– 7.5.1.5.
