Innovative Technology NV11 - Page 148

NV11 Manual Set – Section 5 15
Copyright © Innovative Technology Ltd 2012 GA963-2
Example SSP Communications
Here is an example of the communication between host and slave. Both the typical
commands from the host and responses from the validator are detailed.
Host
Slave
Comments
> SYNC
< OK
Synchronisation command
> SET_GENERATOR, [64 bit
prime number]
< OK
Set the encryption key
generator
> SET_MODULUS, [64 bit prime
number]
< OK
Set the encryption key modulus
> REQUEST_KEY_EXCHANGE
[64 bit host intermediate key]
< OK, [64bit slave
intermediate key]
Host sends the host
intermediate key, slave
responds with the slave
intermediate key. The
encryption key is then calculated
independently by both host and
slave.
> GET_SERIAL
< OK < [ SERIAL
NUMBER ]
NV11 Serial Number
> SETUP_REQUEST
< OK < [ SETUP
INFORMATION ]
NV11 Setup
> SET_ROUTING, 01 14 00 00
00
< OK
Route notes of value 0020 to
the NV11 Cashbox
> SET_INHIBIT > 07 > 00
< OK
Enable channels 1,2 and 3
> ENABLE
< OK
Enable NV11
> POLL
< OK < DISABLED
> POLL
< OK
> POLL
< OK < NOTE READ
< 00
NV11 currently reading a note
> POLL
< OK < NOTE READ
< 03
Note has been recognised as
channel 3 (€20)
> HOLD
< OK
Hold the note in escrow
> POLL
< OK < STACKING
Stack the note
> POLL
< OK < CREDIT <
03 < STACKING <
STACKED
Credit given for channel 3 (€20),
note stacked
> POLL
< OK
Full support is available from ITL and local support offices for implementing eSSP -
this support includes libraries and example applications. When requesting this
information, please specify your preferred language(s) and operating system.