Innovative Technology BV20-1 User manual

BV20-1 Operations Manual
Page 1 of 48
© Copyright Innovative Technology Limited 2007
®
Innovative Technology
Secure Banknote Handling Solutions Of The Future
BV20 Operations Manual

BV20 Operations Manual - GA716
Page 2 of 48
© Copyright Innovative Technology Limited 2007 ®
Revision History
INNOVATIVE TECHNOLOGY LTD
Title: BV20 OPERATIONS MANUAL
Drawing No Author Date FORMAT
GA716 MLC 29/07/2007 MS Word 2000
Issue Release Date Modified By Comments
Issue 1 15/10/2007 MLC First Issue

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
CONTENTS
1. INTRODUCTION......................................................................................................................... 5
2. SCOPE OF DOCUMENT ............................................................................................................ 6
3. ENVIRONMENT AND POWER REQUIREMENTS..................................................................... 7
4. GENERAL DESCRIPTION.......................................................................................................... 8
5. MACHINE INTERFACE: HARDWARE........................................................................................ 9
5.1 Interface Connector Pin Details.............................................................................................10
5.2 Configuration Button Functions..............................................................................................11
BV20 Programming Mode .........................................................................................................11
Configuration Card Programming Mode....................................................................................11
Current Setting Indicator Mode..................................................................................................11
Encryption Key Reset Function (CCTALK)................................................................................11
5.3 Additional Hardware Modules................................................................................................12
MDB Voltage Regulator Module................................................................................................12
110V Voltage Regulator Module................................................................................................12
6. MACHINE INTERFACE: PROTOCOLS.................................................................................... 16
6.1 Parallel Input and Output: ......................................................................................................16
6.2 Pulse Stream Output..............................................................................................................17
6.3 Binary Output – BIN...............................................................................................................18
6.4 Low Power Option..................................................................................................................19
6.5 Serial Input/Output – SIO.......................................................................................................21
6.6 Smiley® Secure Protocol - SSP.............................................................................................24
6.7 Multi-Drop Bus / Internal Communications Protocol (MDB/ICP)............................................25
6.8 CCTalk Protocol – CCT..........................................................................................................27
6.9 Other Interfaces available by request from ITL......................................................................27
7. USING BV20 CONFIGURATION CARDS................................................................................. 28
8. MECHANICAL INSTALLATION................................................................................................. 29
9. ROUTINE MAINTENANCE ....................................................................................................... 30
9.1 Re-Calibration........................................................................................................................31
10. SUPPORT TOOLS.................................................................................................................... 32
10.1 Configuration Cards...............................................................................................................32

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
10.2 ITL Bank Note Validator Currency Manager..........................................................................32
10.3 Validator Programming System (DA3)...................................................................................32
10.4 Internet Website Support.......................................................................................................33
10.5 E-mail Support .......................................................................................................................33
Appendix A – Exploded Diagrams ................................................................................................34
Appendix B – ESCROW Control..................................................................................................37
Appendix C – Interface Tools DA1 – DA2.....................................................................................38
Appendix D – Configuration Cards................................................................................................40
Appendix E – PC System Specification ........................................................................................48

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
1. Introduction
This manual describes the operation of the BV20 Bank note Validator as fitted with Firmware
Version 4.00 or greater.
CAUTIONS:
• THIS PRODUCT MUST BE FITTED WITH A 2 AMP FUSE BEFORE USE.
• THE BV20 VALIDATOR IS PIN FOR PIN COMPATIBLE WITH NV7/8/9/10, BUT NOT
PIN FOR PIN COMPATIBLE WITH THE NV2/3/4/4X OR 5 SERIES PRODUCTS.
• DUE TO DIFFERENT NOTE CYCLE TIMES THERE MAY BE TIMING DIFFERENCES
FROM THE NV PRODUCTS.
We recommend that you study this manual as there are many new features permitting new uses and
more secure applications.
If you do not understand any part of this manual please contact the factory, contact details are below,
for assistance. In this way we may continue to improve our product.
Innovative Technology Ltd.
Derker Street
Oldham
England
OL1 4EQ
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
Web site: www.innovative-technology.co.uk
WARNING
ONLY SUITABLY TRAINED PERSONNEL SHOULD CARRY OUT ANY WORK ON THIS
EQUIPMENT IN ACCORDANCE WITH ALL CURRENT LOCAL, NATIONAL AND
INTERNATIONAL HEALTH AND SAFETY REGULATIONS.
Smiley® and the ITL Logo are international registered trademarks and they are the property of Innovative
Technology Limited.
Innovative Technology has a number of European and International Patents and Patents Pending protecting
this product. If you require further details please contact the factory.
Innovative Technology is not responsible for any loss, harm, or damage caused by the installation and use of
this product. This does not affect your local statutory rights. If in doubt please contact Innovative Technology for
details of any changes

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
2. Scope of Document
This document is intended for those who will:
1. Install the BV20 equipment.
2. Maintain the BV20 equipment.
Although information is included which will allow a degree of fault diagnosis and repair, it is
recommended that for all but simple mechanical repairs, the unit must be returned to an approved
service centre for repair.
CAUTIONS:
• NEVER EXCEED THE RECOMMENDED ENVIRONMENTAL AND ELECTRICAL LIMITS.
• DO NOT ATTEMPT TO LUBRICATE THE MECHANISMS AS THIS MAY AFFECT THE
NOTE TRANSPORT.
• DO NOT POLISH THE LENS AS THIS MAY ALTER THE OPTICAL CHARACTERISTICS.
• IF THE BV20 VALIDATOR IS DISASSEMBLED THE UNIT MUST BE RE-CALIBRATED
AND RE INITIALISED, FOLLOWING RE-ASSEMBLY.
Innovative Technology Ltd has a policy of continual product improvement. As a result the products
supplied may vary from the specification described here.

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
3. Environment and Power Requirements
This section details the Environmental and Power requirements.
Environment Minimum Maximum
Temperature +3oC +50oC
Humidity 5% 95% Non condensing
Table 1 - Environmental Requirements
CAUTIONS:
• IF THE INPUT VOLTAGE FALLS BELOW 11.5V THE BV20 MAY NOT OPERATE
CORRECTLY (WILL REJECT NOTES). THE FRONT BEZEL LIGHTS WILL FLASH TO
INDICATE INCORRECT CONDITIONS
• IT IS RECOMMENDED THAT THE POWER SUPPLY USED CAN SUPPLY AT LEAST
1.7 AMPS.
Electrical Supply Minimum Maximum
Supply Voltage (V DC) Absolute Limits +11.5V +14.2V
MDB IF5 Version Supply Voltage +18V +48V DC or 34V AC
Supply Ripple Voltage 0 0.25V @100 Hz
Supply Currents:
Sleep (Low Power Mode) 1.2mA
Standby 150mA
Validating 540mA
Peak (Motor Stall) 1700mA
Table 2 - Power Requirements
Interface Logic levels Logic Low Logic High
Inputs 0V To +0.5V +3.7 V +12V
Outputs with 2K2Ωpull up 0.6V Pull up voltage of host
interface
Maximum Current Sink 50mA per output
Table 3 - Interface Logic Levels

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
4. General Description
BV20 Validator - the next generation of ITL Bank Note Validators
The BV20 Bank Note System is a compact note-validating machine (see figure 1), suitable for most
money machines. It will accept up to 16 different denominations of notes in the serial control mode.
Figure 1 – The BV20 with Vertical Bezels
The BV20 Validator leaves the factory preset to at least one currency so that it is ready for immediate
installation. If it is required to change the currency data set this may be done using the PC based
Validator Management software.
New currencies and applications are being tested all the time, please refer to our web site or contact
the factory for information concerning specific currencies if they are not already included on our
approved list.
The BV20 is designed for easy installation in most machines.
Interfacing the Validator is very simple, with the choice of the following protocols:
SSP PULSE PARALLEL BINARY
CCTALK SIO MDB NIS
IF30 IF31 IF32
Table 4 – Available Interfaces/Protocols
Lozen
g
e Release Catch
BEZEL
Note Output Path
Configuration
Function Button
Expansion Port
Clips

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
5. Machine Interface: Hardware
The BV20 interface connector is located on the left side of the unit; it has 16 pins (see figure 2) refer
to Table 5 for the pin allocation. Two are used for the 0V and +12V power supply and there are five
outputs and five inputs, the remaining four pins are reserved for factory use and should not be
connected. An example mating connector is Molex type Part No: 39-51-2160.
It is possible to connect the BV20 to machines operating at 110 Volts or to machines operating at
MDB voltages by means of additional Hardware modules. The modules are attached to the BV20 by
means of the External hardware clips and connected to the 16-pin connector. (See section 5.3)
The BV20 also has a Configuration Button on the opposite side from the Connector (See Figure 3).
Figure 2 – Interface Connector Figure 3 – Configuration Button
16 Pin Connector Confi
g
uration Button
External
Hardware Clip
External
hardware Clip

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
5.1 Interface Connector Pin Details
The connector pin details are described below (see table 5); they use an IDC 16-pin 0.1" pitch header
with 2 rows of 8 pins.
Pin Name Description
1
Vend 1
Open Collector Output. Function changes depending on Machine
Interface Protocol. (See individual interface descriptions for details)
Also the Pulse Stream output
Also the serial Output pin in SSP Serial Mode, and other serial modes
2 Vend 2
3 Vend 3
4 Vend 4
Open Collector Outputs.
Function changes depending on Machine Interface Protocol.
(See individual interface descriptions for details)
5
Inhibit 1
Inhibit channel 1 by holding this pin HIGH. To Enable a channel the
inhibit must be held LOW Also the serial Input pin in SSP Serial Mode,
and other serial modes
6 Inhibit 2 Inhibit channel 2 by holding this pin HIGH
7 Inhibit 3 Inhibit channel 3 by holding this pin HIGH
8 Inhibit 4 Inhibit channel 4 by holding this pin HIGH
9
Busy BV20 is validating and stacking output. Active low while the BV20 is
reading, transporting or stacking a note.
10
Escrow Operate Escrow function by holding LOW (see Appendix B – ESCROW
Control for full details)
11 Factory Use Only Do Not Connect
12 Factory Use Only Do Not Connect
13 Factory Use Only Do Not Connect
14 Factory Use Only Do Not Connect
15 +Vin Nominal 12V DC supply
16 0V 0V Supply
Table 5 - 16 Pin Connector Details

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
5.2 Configuration Button Functions
The functions available via the Configuration Function Button are detailed in Table 6
Configuration Button Power Status Function
Press & Hold (> 1 sec) Powered ON Sets BV20 to Programming Mode (SSP)
Press Once Powered ON Enables Configuration Card Programming
Press Twice
(Within Half a second) Powered ON Current Setting Indicator
Press & Hold Powered OFF Resets Cctalk key to Default setting
Table 6 – Configuration Button Functions
BV20 Programming Mode
Press and Hold the Configuration Button for at least 1 second whilst the BV20 is powered up. The
Bezel LED will flash rapidly to indicate that SSP is being loaded. Once this process has finished the
BV20 will reset. The BV20 will now be in Programming Mode (SSP) and allow connection to a PC via
a DA1 or DA2 adapter or connection to a DA3.
Note: This mode can only be cancelled by re-programming with a Configuration Card or via
the Validator Manager program. Please ensure you are aware of all the BV20 programmed
settings before entering this mode. Failure to restore the original setting will stop the BV20
from operating in the Host machine.
Configuration Card Programming Mode
Press the Configuration Button once whilst the BV20 is powered up. If done correctly the Bezel LED
will flash every 1-second. This will allow the insertion of a Configuration Card to change the Firmware
Protocol in the BV20. (See Chapter 7- Using BV20 Configuration Cards for full details). This mode
can be cancelled by again pressing the Configuration Button once.
Current Setting Indicator Mode
Press the Configuration Button twice within half a second whilst the BV20 is powered up. The BV20
Bezel LED will then perform a series of flashes to indicate the current settings within the validator.
(See Program Check Procedure, page 2 in Appendix D – Configuration Cards)
Encryption Key Reset Function (CCTALK)
Note: This function will only be possible if the BV20 is programmed to Cctalk mode. It is not possible
to reset the key from SSP mode.
Press and hold the Configuration Button Whilst the BV20 powered is off. Apply the power and keep
the button pressed for several seconds. The cctalk Encryption key will now be restored to the default
setting.

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
5.3 Additional Hardware Modules
The BV20 currently supports the following additional hardware Modules for connection to machines
with alternative power specifications.
MDB Voltage Regulator Module.
The MDB Voltage Regulator Module is for use in Vending machines operating at higher DC or AC
voltage outputs. The module provides a regulated 12V dc supply to the validator and has Opto
isolated inputs and outputs. For further details on the MDB protocol please see chapter 6.7
110V Voltage Regulator Module.
The 110V Voltage Regulator Module allows the BV20 to be used with machines that operate with a
110V AC supply.
The modules attach to the back of the BV20 and are held in place by the expansion port clips and a
single fixing screw.
For unit and cable dimensions please see diagrams below.
Figure 4 – BV20 with MDB Voltage Regulator Module Fitted.

COPYRIGHT CONTAINED IN THIS DRAWING IS THE PROPERTY OF INNOVATIVE TECHNOLOGY LTD ©
C.A.D. GENERATED
MOD'S TO BE DONE VIA MAGNETIC MEDIA
DO NOT SCALE
IF IN DOUBT, ASK!
IHGF WVUTSRQPONMJ LKED
8911 10 713 561416 15 12
IHGF WVUTSRQPONMJ LKEDCB
4 3 2
8911 10 713 561416 15 12 4 3 12
X
1
3rd ANGLE PROJECTION.
NOT TO SCALE
DRAWN DATE CHECKED DATE
TITLE
ISSUE
TOOL NO.
DRAWING NO.
ISSUE NO. MOD NO. MOD BYDATE
X
17
A
17
FINISHMATERIAL
INNOVATIVE TECHNOLOGY LIMITED
DERKER ST, OLDHAM
ENGLAND, Ol1 4EQ
UNITED KINGDOM
TEL: [phone]
FAX: [phone]
®
BV20/100 MDB PSU cable assembly with extended
length and Y-split end (MDB PSU to host machine)
A Lunsong 23/07/07
All parts must be rated to at least UL94-VW1
All connector housings must be rated to UL94-V0
--
--
-
CN307 A
A1
--
--
--
-- - -
- -
- -
- -
23/07/07 A Lunsong All dimensions
in mm ±2mm
Terminal Housing Crimp
CON1 Leotronics 6740-1061 (2x3way 4.20mm pitch, receptacle) 6744-2001 (tin plated)
CON2 Leotronics 2010-2051 (1x5way 2.00mm pitch, socket) 2033-2001 (tin plated)
CON3 Leotronics 6740-2061 (2x3way 4.20mm pitch, plug) 6743-2001 (tin plated)
Connectivity by conductor
CON1 CON2 CON3 Gauge Colour Comments Length
Pin Pin Pin (AWG) (mm)
1 5 1 24 Red +Vin
2 4 2 24 Black DC Power Return/GND
4 3 4 24 Yellow Master Receive
5 2 5 24 Brown Master Transmit
6 1 6 24 Orange Comms Common
CON1 position 3 unloaded.
CON3 position 3 unloaded.
PVC tubing
(Thickness: 1mm)
(Diameter: 6mm)
(Black)
400
10
Heat shrink sleeve
(Black)
5
8
Cable tie
15
CON2
(Bottom View)
5
1
20
10
13
46
(Rear View)
CON1
(Top View)
6
4
4 6
13
46
(Front View)
CON3
(Top View)
6
4
10
5
10280
347
Heat shrink sleeve
(Black)
(Front View)

COPYRIGHT CONTAINED IN THIS DRAWING IS THE PROPERTY OF INNOVATIVE TECHNOLOGY LTD ©
C.A.D. GENERATED
MOD'S TO BE DONE VIA MAGNETIC MEDIA
DO NOT SCALE
IF IN DOUBT, ASK!
IHGF WVUTSRQPONMJ LKED
8911 10 713 561416 15 12
IHGF WVUTSRQPONMJ LKEDCB
4 3 2
8911 10 713 561416 15 12 4 3 12
X
1
3rd ANGLE PROJECTION.
NOT TO SCALE
DRAWN DATE CHECKED DATE
TITLE
ISSUE
TOOL NO.
DRAWING NO.
ISSUE NO. MOD NO. MOD BYDATE
X
17
A
17
FINISHMATERIAL
INNOVATIVE TECHNOLOGY LIMITED
DERKER ST, OLDHAM
ENGLAND, Ol1 4EQ
UNITED KINGDOM
TEL: [phone]
FAX: [phone]
®
BV20 110V PSU to host machine cable
assembly
A Lunsong 06/08/07
All parts must be rated to at least UL94-VW1
All connector housings must be rated to UL94-V0
--
--
-
CN311 A
A1
--
--
--
-- - -
- -
- -
- -
06/08/07 A Lunsong All dimensions
in mm ±2mm
Terminal Housing Crimp
CON1 AMP 172169-1 (1x5way 2.00mm pitch, housing) AMP 794137-1 (tin plated)
CON2 M5 ring terminal, sheared -
Connectivity by conductor
CON1 CON2 Gauge Colour Comments
Pin Pin (AWG)
2 22 Orange
3 22 Red
4 22 Black Cut shorter at exposed end
6 22 White Cut shorter at exposed end
7 22 Brown
8 22 Blue
x 22 Green Cut shorter at exposed end
CON1 position 1,5 & 9 unloaded.
PVC tubing
(Thickness: 1mm)
(Diameter: 7mm)
(Black)
300
Heat shrink sleeve
(Black) 3
25
Cable tie
10
5 7
CON2
10 10
307
227
Stripped
and tinned
CON1
(Top View)
3
1
79
13
(Rear View) 10
5
The shorter length
extensions/wires are
Green, Black and
White.
(See table below for
further details)

BV20-1 Operations Manual
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© Copyright Innovative Technology Limited 2007 ®
6. Machine Interface: Protocols
ITL strongly recommends the use of a Serial protocol (Preferably SSP) to achieve the highest
security.
6.1 Parallel Input and Output:
To use Parallel Output for 4-note/channel acceptance the Parallel interface must be programmed into
the validator via the Configuration Cards (See Appendix D – Configuration Cards) or via the ITL BNV
Currency Manager program.
Vend Signals: (Pins 1 to 4). The four channels have their own individual outputs. If a note is
recognised then the relevant Vend line is set low for a period of 100 ± 3ms. Pulses outside these
limits should be rejected as a precaution against false triggering.
Busy Output: (Pin 9). This is a general-purpose busy signal. It is active low while the BV20 is in
operation.
Escrow Control: (Pin 10) Hold this pin Low to enable the single note escrow function. (See Appendix
B – ESCROW Control).
If the host machine aborts the transaction by setting the corresponding inhibit input high, the note is
returned immediately.
The host machine can force the return of the note to the customer by setting the inhibit line high, at
any time before the end of the 30 second time-out. Setting high all the inhibits causes a note reject.
In the event of a note being forcibly removed from the mouth of the BV20 during the 30-second
interval, the BV20 will go out of service for 45 seconds.
Inhibit Operation: (Pins 5 – 8) Channel 1 to 4 have their own inhibit input to allow the host machine
to refuse specified notes. To inhibit a channel, the relevant inhibit input must be held high. To enable
a channel, the corresponding inhibit must be latched low so that notes may be accepted.
If all four inhibits are high simultaneously then the BV20 will be disabled. In this state the bezel LED
will not illuminate and if a note is inserted the motor will run in reverse preventing the insertion of the
note.
All four inhibits may be connected together to create a 'global' inhibit. In this way the BV20 may be
brought in and out of operation by the host machine.
It is possible to operate the BV20 in Low power mode with the Parallel interface. For further details
please see Chapter 6.4

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
6.2 Pulse Stream Output
To use pulse stream output for acceptance of up to 16 note/channel acceptance, The Pulse interface
must be programmed into the validator via the Configuration Cards (See Appendix D – Configuration
Cards) or via the ITL BNV Currency Manager program.
Vend Signal: (Pins 1) When a note is recognised vend 1 will pulse a pre set number of times, the
number of pulses can be set via the ITL BNV Currency Manager program (and set to default values
with supplied dataset). The pulse width can be set either with the ITL BNV Currency Manager
program or via the Configuration Cards (See Appendix D – Configuration Cards)
Busy Output: (Pin 9). This is a general-purpose busy signal. It is active low while the BV20 is in
operation.
Escrow Control: (Pin 10). No escrow function in this mode
Inhibit Operation: (Pins 5 – 8) Channels 1 to 4 have their own inhibit input to allow the host machine
to refuse specified values of notes. To inhibit a channel, the relevant inhibit input must be held high.
To enable a channel, the corresponding inhibit must be latched low so that notes may be accepted.
If all four inhibits are high simultaneously then the BV20 will be disabled. In this state the bezel will
not illuminate and if a note is inserted the motor will run in reverse preventing the insertion of the
note.
Note: Channels higher than four cannot be individually inhibited, but will be globally inhibited
if inhibits 1 to 4 are inhibited.
It is possible to operate the BV20 in Low power mode with the Pulse interface. For further details
please see Chapter 6.4
Credit Hold Function:
If this function is enabled in pulse mode by Configuration card or ITL BNV Currency Manager
program, the validator will take the note as normal but then wait until the escrow line is toggled
low/high before. It will then give out the number of pulses per dollar as set on the programming card.
After the pulses have been given, the validator will then wait for another low/high toggle until the full
value of credit pulses are given.
For example with a setting of 2 pulses per dollar, a five dollar bill will give 2 pulses, 5 times.
A Typical use of this option would be for a Pool table with a game price of $1. You could insert a $5
note and press a button that toggles the escrow line and releases the pool balls, this would then allow
you to play the first game. The Validator holds onto the remaining credits until the game has finished
and the button is pressed again allowing the next game to begin, this continues until all the credits
have been used.
The busy line remains low throughout the whole process and the validator remains inhibited until all
pulses are given.

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
6.3 Binary Output – BIN
To use Binary mode The Binary interface must be programmed into the validator via the
Configuration Cards (See Appendix D – Configuration Cards) or via the ITL BNV Currency Manager
program.
In the event that the machine needs more than 4 notes to be recognised, but the host machine
cannot take advantage of the serial communication methods then the BV20 can be set to give a
binary pattern output on the four parallel output pins.
If the BV20 is set to binary mode it will issue the vend signals as a binary pattern on the parallel
outputs for 100 ± 3ms. In this way a maximum of 15 different notes can be accepted and 4 notes
individually inhibited.
Vend Signals: (Pins 1 to 4). The four channels have their own individual outputs. If a note is
recognised the binary representation of the channel number will be pulled low for 100 ± 3ms. Pulses
outside these limits will be rejected as a precaution against false triggering due to noise.
Busy Output: (Pin 9). This is a general-purpose busy signal. It is active low while the BV20 is in
operation.
Escrow Control: (pin 10). Hold this pin Low to enable the single note escrow function. (See
Appendix B – ESCROW Control).
If the host machine aborts the transaction by setting the corresponding inhibit input high on pin 10,
the note is returned immediately.
The host machine can force the return of the note to the customer by setting the inhibit line high, at
any time before the end of the 30 second time-out. Setting all the inhibits high causes a note reject.
In the event of a note being forcibly removed from the mouth of the BV20 during the 30-second
interval, the BV20 will go out of service for 45 seconds.
Inhibit Operation: (Pins 5 – 8) Channels 1 to 4 have their own individual inhibit input to allow the
host machine to refuse specified values of notes. To inhibit a channel, the relevant inhibit input must
be held high. To enable a channel the corresponding inhibit must be latched low so that notes may be
accepted.
If all four inhibits are high simultaneously then the BV20 will be disabled. In this state the bezel will
not illuminate and if a note is inserted the motor will run in reverse preventing the insertion of the
note.
Note: Channels higher than four cannot be individually inhibited, but will be globally inhibited
if inhibits 1 to 4 are inhibited.
It is possible to operate the BV20 in Low power mode with the Binary interface. For further details
please see Chapter 6.4

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
6.4 Low Power Option
Notes:
• Low Power Mode can ONLY be used with the above Parallel, Pulse and Binary
protocols.
• Low power mode can only be enabled by correctly completing the configuration cards
or via the ITL BNV Currency manager program.
• In Low Power Mode the front sensor is checked every 1 second which can lead to a
delay in accepting the note when it is presented.
• Configuration button functions are only available during power up before the BV20
goes into Low Power mode
Electrical Supply Minimum Maximum
Supply Voltage (V DC) Absolute Limits +11.5V +14.2V
MDB IF5 Version Supply Voltage +18V +48V DC or 34V AC
Supply Ripple Voltage 0 0.25V @100 Hz
Supply Currents:
Sleep (Low Power Mode) 1.2mA
Standby 150mA
Validating 540mA
Peak (Motor Stall) 1700mA
Low power Mode can be used with all none serial communication protocols to reduce the power
consumption of the BV20 when idle. When the BV20 is in this state the current consumption is
reduced to approximately 1.2mA. The BV20 goes into low power mode approximately 4 seconds after
the validator is powered up and remains in this state until a note is entered (Time A). Following a note
insertion the BV20 returns to Low Power mode approximately 1 second after the Busy line goes High
(After credit is given or note is rejected). (Time B)
Low Power mode uses 3 control lines: Vend – Pin 1, Inhibit – Pin 5 and Busy – Pin 9
Figure 11 - Low Power Mode Timing Diagram
Inhibit
0V
Busy
0V
Vend
Validating
0V Stacking
Enabled
Validator
Wake Up
Note Inserted
Vend / Credit
Sleep
A
B

BV20 Operations Manual - GA716
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© Copyright Innovative Technology Limited 2007 ®
TIMING DIAGRAM EXPLAINATION
When the Validator is enabled the Inhibit line is Low and the Busy line is High. This remains the same
until a note is inserted (Time A)
When a note is inserted under the front sensor the BV20 wakes up and the busy line goes low to
indicate that the validator is in use. The busy line remains low during the validating and stacking
process and once the note has been successfully validated and stacked the vend line goes low to
issue the credit.
After the credit is issued the busy line goes high and approximately 1 second after the busy line goes
high (Time B) the BV20 goes back into low power mode.