SR5i Technical Manual
TSP095.doc Issue 1.0 – July 2004
©
Money Controls 2004. All rights reserved.
10.7 Bank Select Parallel Inputs (Mode 1 only)
The SR5i is capable of accepting up to 16 different coin types.
Whilst it is possible for the coins to operate entirely independently, for the purposes of
inhibiting coins they are arranged in 2 banks of 8.
It is therefore only necessary to have 8 inhibit inputs (1 per coin in each bank).
Each of the Bank Select inputs controls its relevant bank (1 or 2).
Bank 1 contains coins 1 to 8.
Bank 2 contains coins 9 to 16.
The Bank Select inputs are connected in parallel with the DIL switches on the PCB (see
section
17 Bank Select Switches
). The normal state, floating /High, is
Selected
(Bank
Enabled).
If the Bank Select DIL switch is set to the ON position
De-selected
(Bank Inhibited) then
changing the state of the Bank Select input will have no effect.
If the Bank Select pin on the parallel connector is Low,
De-selected
(Bank Inhibited) then
changing the state of the Bank Select DIL switch will have no effect.
When a Bank Select input is Low
3
, then the corresponding bank of coins are de-selected (i.e.
inhibited).
When a Bank Select input is High
4
, then the corresponding bank of coins are selected (i.e.
enabled).
The 8 inhibit inputs only act on the coins in the bank/s that are enabled.
Examples.
When both Bank Select inputs are High then both banks of coins are
selected
. In this state
the 8 inhibit lines act on all 16 coins, i.e.
Inhibit 1 controls coin 1 and coin 9.
Inhibit 2 controls coin 2 and coin 10 and so on up to
Inhibit 8 controls coin 8 and coin 16
When Bank Select 1 input is High and Bank Select 2 input is Low then coin Bank 1 is
selected
and coin Bank 2 is
de-selected
, i.e.
Inhibit 1 controls coin 1.
Inhibit 2 controls coin 2 and so on up to
Inhibit 8 controls coin 8.
When Bank Select 1 input is Low and Bank Select 2 input is High then coin Bank 1 is
de-
selected
and coin Bank 2 is
selected
, i.e.
Inhibit 1 controls coin 9.
Inhibit 2 controls coin 10 and so on up to
Inhibit 8 controls coin 16.
Notes:
3
Pulling the Bank Select Low is the same as setting the DIL switch UP (the ON position).
4
Pulling the Bank Select High is the same as setting the DIL switch DOWN (the OFF
position).
