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SCA Functional Specification

LANE CLOSED

Last updated: 07-Apr-2025

This command closes the active session. It also optionally displays a corresponding text message on the Idle screen.

Device UI Required: Yes

Request Packet
Field Rule Type Min Max Value Comments
FUNCTION_TYPE Required Static
Value
ADMIN Type of function
COMMAND Required Static
Value
LANE_CLOSED Command name
DISPLAY_TEXT Optional Character 1 40 Ex: Lane Closed This field is used to display the text on
the terminal.
FONT_COL_VALUE Optional Character 6 6 (Red) FF0000
(Green) 00FF00
(Blue) 0000FF
(Black) 000000
Text color for lane closed display text (RGB hex
color value).
NOTE: If this field is sent then the values will be
considered and if not sent then LANECLOSEDFONTCOL
parameter values will take precedence.
FONT_SIZE Optional Numeric 1 100 Ex: 72 Font size for display text. Maximum FONT_SIZE is
dependent on Terminal used. 100 is the largest value
possible assuming a large screen terminal.
NOTE: If this field is sent then the values will be
considered and if not sent then LANECLOSEDFONTSIZE
parameter values will take precedence.
POS_RECON Optional Character 1 30 Ex: RetailPOS1 POS reconciliation.
NOTE: POS Reconciliation field to be echoed back in
response to POS.
COUNTER Required Numeric 1 10 Ex: 8 COUNTER is used for a given MAC label.
Each COUNTER should be higher than the last one.
NOTE: Used to authenticate the POS.
MAC Required Base64
Encoded
Data
  Message Authentication Code. COUNTER value encrypted
by 128-AES MAC_KEY. This value is Base64 encoded.
NOTE: Used to authenticate the POS.
MAC_LABEL Required Character 1 50 Ex: REG1 Associated label that tells the device which MAC_KEY
to use to decrypt the value of MAC.
NOTE: Used to authenticate the POS.
Example

Following is an example of request packet

<TRANSACTION>
  <FUNCTION_TYPE>ADMIN</FUNCTION_TYPE>
  <COMMAND>LANE_CLOSED</COMMAND>
  <DISPLAY_TEXT>Lane Closed</DISPLAY_TEXT>
  <COUNTER>1</COUNTER>
  <MAC></MAC>
  <MAC_LABEL>REG2</MAC_LABEL>
</TRANSACTION>
Response Packet
Field Type Value Description
RESPONSE_TEXT Character   Processor response text. Example: Operation SUCCESSFUL
RESULT Character OK This indicates the Result details.
RESULT_CODE Numeric Expected result code: -1, 59002, 59005, 59045 This indicates the result code. Refer to Result/Error Codes for details.
TERMINATION_STATUS Character SUCCESS or FAILURE This indicates the transaction termination status. This is the overall status of the transaction irrespective of approved or declined. Like, if the output is generated then the status is SUCCESS and if no output is generated then the status will be FAILURE.
POS_RECON Character   POS reconciliation field echoed back if sent in request. Example: RetailPOS1
COUNTER Numeric   Echoes counter sent in the request. Example: 100

Transaction Performance Metric

  

Note

These fields are returned, if SCAPERFMETRIC parameter (Application Parameters) is enabled.

Field Type Value Description
UI_TIME Time   This indicates the time duration, for which the device screen is displayed (like error message, prompt screen, remove card screen) till any user action is performed in the command execution flow. This field is not applicable to capture the time for the Processing, Authorizing and transaction status screen. The format of the returned value would be S.sss, where S is seconds (this can be 0 to any positive integer) and sss is milliseconds. In case of any insignificant time or 0.000 value, will not be returned in the response. Example: <UI_TIME>44.028</UI_TIME>
HOST_TIME Time   This indicates the time taken for the Connection to the host, sending request and receives data from the host. This field also take the cumulative time for multiple requests which may sent to the host during the transaction including two legged transactions, timeout requests, Auto Last Tran requests, DCC, Credit app proxy. The format of the returned value would be S.sss, where S is seconds (this can be 0 to any positive integer) and sss is milliseconds. In case of any insignificant time or 0.000 value, will not be returned in the response. Example: <HOST_TIME>1.389</HOST_TIME>
CMD_TIME Time   This field indicates the total amount of time for a command, which is executed by the application from request received to the response sent. The format of the returned value would be S.sss, where S is seconds (this can be 0 to any positive integer) and sss is milliseconds. In case of any insignificant time or 0.000 value, will not be returned in the response. Example: <CMD_TIME>70.765</CMD_TIME>
Example
<RESPONSE>
  <RESPONSE_TEXT>Operation SUCCESSFUL</RESPONSE_TEXT>
  <RESULT>OK</RESULT>
  <RESULT_CODE>-1</RESULT_CODE>
  <TERMINATION_STATUS>SUCCESS</TERMINATION_STATUS>
  <COUNTER>8</COUNTER>
</RESPONSE>

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