User's Manual

PIN Pad 791 Programmer’s Manual (PCI POS-A) UDN PM0103-U Rev. 06
Section 10 – Online transaction messages with DUKPT 2015-04-20
Page241
Uniform Industrial Corp. Proprietary and Confidential Total 342 pages
Message 62 Pre-authorization Amount Authorization Request
Format: <STX>62[DC Ind][amount]<ETX>[LRC]
Message length: Variable 10 to 14 bytes.
Usage: Display prompt and accept customer PIN input. The following prompt will be displayed:
“Total Amount $xxx.xx”
“Enter – Confirm”
”Cancel – Decline”
xxx.x is the content of Amount field, with length between 4 to 8 positions. The PIN pad
will then wait till either CAN or ENTER key is pressed. If ENTER key is pressed, the
PIN pad will response with positive confirmation. If CAN is pressed, the PIN pad will
response a negative confirmation. During this period, the PIN pad will not process any
message other than the message 72(cancel transaction).
Message element:
Field Length Value and description
<STX> 1 <02>
62 2 Message ID
[DC Ind] 1 D/C: Debit/Credit Indicator
[amount] 4..8 Amount of goods to be displayed on PIN pad.
<ETX> 1 <03>
[LRC] 1 Checksum
Message flow:
Please reference message 60.