Innovative Technology NV11, Руководство пользователя

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NV11 Manual Set – Section 5 20
Copyright © Innovative Technology Ltd 2012 GA963-2
Response Format from the NV11 to Host
ACK message:
[Dst] [00] [CRC (LSB)] [00] [CRC (MSB)]
NAK message:
[Dst] [00] [CRC (LSB)] [05] [CRC (MSB)]
BUSY message:
[Dst] [00] [CRC (LSB)] [06] [CRC (MSB)]
Response:
[Dst] [Len] [CRC (LSB)] [00] [Data1] … [DataN] [CRC (MSB)]
Field Description
Dst Destination Address (for a note validator, 40 [0x28])
Len Number of data bytes in the message
Header Reply message [00]
Data Data attached to Header, specified by Len (1-N)
CRC [Dst] + [Len] + [Header] + [Data1] + … + calculated value of CRC16
against Data N.
If encryption setting is enabled, encryption is carried out against:
[CRC (LSB)] + [Header] + [Data1] + … + [DataN] + [CRC (MSB)]
5.5 SSP Escrow Function
To hold a note in the escrow position when using SSP, the POLL command should be
replaced with the HOLD command after NOTE READ > 0 for as long as the note is to
be held in escrow.
A POLL command will then accept the note; the REJECT command will return the note
to the customer