GBA Global Bill Acceptors
GBA ST1C Operation Manual
Page 22 of 30
Astrosys International Ltd
GBA ST1C Operations manual V1_4
Signal Description
/ABN (Alarm) Output – low for 100ms (parallel interface) or permanently low to
indicate error or alarm in serial and pulse interfaces.
/VEND n Output – The vend channels 1 to 6 (parallel interface) are held
low for 100ms.
/ESCROW Input - when low this selects Escrow mode
PULSE , /SERIAL select Input - when low selects Mars® Serial (A) mode (NISR). High or
not connected selects pulse mode
/BUSY Output – a low output indicates when the acceptor is operating
/DATA Output - used to send data to the host machine
/CTS Input - from host that tells acceptor that host is ready to receive
the message
/Enable Input - Determines whether or not the acceptor will accept bills.
Logic low = accept bills. Only applies to Pulse and Parallel
interfaces.
/RTS (Interrupt) Output to host signal that the acceptor wishes to send a message
to the host.
/PULSE O/P The number of pulses sent is determined by the denomination of
the note and configuration settings.
The pulse pattern is specified by the configuration, and both the
pulse width and gap between pulses can be specified.
TXD Output – UART, open collector
RXD Input – UART, TTL level receive data
See the Interface Description Manuals for further details.
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