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Rev. A07
PayLink-IP/232 Configuration Guide
Page 16 of 26
Send ENQ to Terminal to initiate transmission
This setting should be enabled in two general situations:
•
where the payment terminal expects an ENQ string to precede the transmission of data, and the payment
processing server does not send that string or,
•
where delays in transmission time (possibly resulting from SSL negotiation) would lead to the payment pro-
cessing server’s ENQ string being received late by the terminal, causing the terminal to time out.
Figure 16: Opening a connection — “Send ENQ” enabled