GBA
Global Bill Acceptors
GBA ST2
Operations Manual
Page 12 of 25
Astrosys International Ltd
January 2009
GBA ST2 Op Manual V1.01
(7) Parallel XT
(8) Parallel Binary
Definitions of the above can be found in the Interface Description Manual.
ccTalk
®
Encryption Key Reset:
Should a validator require replacing in a ccTalk
®
application, the Encryption key will require
resetting to the default in both the host machine and the note validator. This is achieved on the
note validator by use of the ccTalk
®
Encryption Key Reset Programming Card, using the procedure
described above in “Configuration Procedure – Programming Card”. For resetting the host
machine please refer to the machine user guide.
Escrow Time out period (Parallel interfaces only):
This option enables the Escrow time out period to be set in 1-second intervals between 1 and 255
seconds.
Please Note:
The standard escrow time is 26 seconds. Adjust with care! The host
machine must be designed to work with any other time selected. Please contact Technical support
for more details.
Low Power Mode:
In this mode the quiescent current drawn by the unit is reduced by disabling
the motor checks at start up.
This mode is designed to enable the GBA ST2 to be used in battery applications. It is anticipated
that the unit is powered up only when a customer wants to present a note, e.g., by lifting up a flap,
then the validator is powered down once transaction completed.
OPTICAL ANTI STRING GATE (OASG):
Introduction:
The OASG is a key component of the GBA ST2 security system. The sensor detects strings, tape
or other foreign objects behind the note being validated. Should any objects be detected then the
note is rejected. Options exist for the unit to be disabled if a preset limit of consecutive string
attempts is detected.
Operation:
General:
Once the validator has completed the validation process and is satisfied the note is genuine, the
note is moved from the escrow position, such that, the rear of the note is clear of the OASG
sensor. A reading is taken and if it is within limits the note is transported to the cashbox and credit
given. If the reading is outside limits the note is rejected.
Eight variables can be set in EEPROM memory to control the OASG operation.
1) No. of String Attempts Before OASG Locks Out
2) OASG Lock Out Period
3) OASG Recalibration Period (F/W 0230 onwards)
4) OASG Sensitivity
5) OASG Foreign Object Check
6) Note Jam Detect Limit
7) Note Returned Prior to Lock Out
8) Enable 2 Note Return check
