E 10210 12 - 2005
Protocols:
MODULAR X6 CCTALK VALIDATOR 69
Notes:
a)
A NACK is returned if:
-
The Exit module does not have its software correctly loaded
-
The Exit module does not have its tables correctly programmed.
-
It has received an incorrect coin code
5.50
MODIFY SECURITY SETTING [181]
Command not available in “Secure Mode”.
The Machine defines for each coin position if the Validator uses a determined wide band,
normal band, narrow band or super narrow band for a coin:
Send:
[Dir] [2] [1] [181] [Data 1] [Data 2] [Chk]
Reply:
[1] [0] [Dir] [0] [Chk] -> ACK without data
Where
Dir = address of the corresponding validator
Data 1 Position of the coin (1 a the 16)
Data 2 = 0: normal band
= 1, 2, and 3: increase security.
= -1, -2, and -3: decrease security.
There is a compromise between security and percentage of admission of coins. Normally
greater security corresponds to a better percentage of admission. The level of security is
defined in the Validator in four levels or bands of acceptance for each coin. From greater to
lesser security we have:
-
Wide band, value -1: permits a greater percentage of admission of legal coins, normally
used when there are no frauds for this coin.
-
Normal band, value 0: it has the normal percentage of admission. It has good admission
characteristics of legal coins: around 95% with good fraud rejection characteristics.
-
Narrow band, value 1: reduces the percentage of admission of legal coins increasing the
rejection of frauds.
-
Super narrow band, value 2: maximum rejection of frauds is achieved although this is at
the expense of the percentage of admission of legal coins.
