Aclara SGM1430-B, User Manual

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60
S G M 1 4 3 0 - B S m a r t M e t e r P o l y p h a s e U s e r M a n u a l – S M E T S 2
Prepayment Solution
UTRN Entry Responses
Every entry of a UTRN token will generate a response, whether accepted or
rejected, which in turn is logged within the ESME. These responses will either be
alerts or events; see Prepayment Events and Alerts on page 61. Successful UTRNs
and their top-up amounts are logged in the following billing logs:
• Payment-based Debt Payments (log of what payment has been made
towards the payment-based debt)
• Prepayment Credits (log of what credit has been accepted – full top-up
amount)
UTRN Entry Accepted
When the ESME successfully processes a UTRN (top-up), a message will appear
on the ESME display to indicate that a top-up was accepted. This message will
also indicate how much has been deducted.
UTRN Entry Lockout
The ESME supports a UTRN lockout feature where certain responses to UTRN
entries will be regarded as fraudulent/invalid attempts to enter a UTRN and will
be penalized by a count towards a potential lockout.
The rules for the lockout feature are detailed in the following table.
When a lockout state is ON, no further UTRN entries are allowed. Any such
entries will be rejected until the next top-of-the-hour is crossed.
Maximum Meter Balance
The maximum meter balance is the absolute maximum amount of credit that is
allowed to be credited to the meter balance.
If a top-up via a UTRN takes the credit above this threshold, the UTRN token will
be rejected, but the consumer will be able to apply that UTRN again when the
meter balance has sufficiently dropped to allow that top-up.
UTRN Token Lockout Conditions
Lockout Counter Reason
Lockout
State
Increments, but still < 10 Invalid UTRN entry received. OFF
Resets (= 0)
Lockout State is OFF and a valid UTRN entry is received
OR top-of-the-hour is crossed.
OFF
= 10
Ten consecutive invalid UTRN entries are received within the
current clock hour.
ON
Resets (= 0) Lockout State is ON and top-of-the-hour is crossed. OFF