SR5i Technical Manual
TSP095.doc Issue 1.0 – July 2004
©
Money Controls 2004. All rights reserved.
10.3 Ident Pin
The ident pin (pin 1) can be used by the host machine to identify the SR5i acceptor and
hence interpret the binary credit code outputs.
The ident pin is linked on board to COM A and will reflect COM A status providing pin 8,
(select), is Low. The ident pin status will change within 10ms of a change in the select line
status.
10.4 Coin Accept Outputs
These outputs are capable of functioning as current sink, (negative COM A) or current
source (positive COM A).
If the value of COM A is outside the specification, then the performance of the Accept
outputs is not guaranteed.
On acceptance of a true coin, the transistors (COM A dependant) are turned on for a period
of 80ms
(2)
(+/- 5%) to within 1 volt of COM A at a Max. current source/sink of 50mA.
The host machine must look for valid credit pulses NOT LESS THAN 50ms duration. It is not
sufficient to merely detect the edges of credit pulses. This ‘de-bounce’ will prevent credits
being registered by the host machine as a result of any noise or false credit pulses being
induced on the output lines.
(2)
Default time.
Table 6: Accept output DC characteristics
Characteristic
Value
Conditions
V out active min.
Com A minus 1V
Positive Com A
V out active max.
Com A plus 1V
Negative Com A
I max (sink or source)
50mA
Positive or Negative Com A
I Leakage
10
µ
A
Off
