Hardware manual

80-001113 SysLINK Administrator’s Guide Page 24
(Secured) Simple POS Terminal Protocols
With Simple POS Terminal Protocols, the gateway establishes a pass-through connection
with a payment authorization server that communicates directly with a local POS terminal.
The gateway does recognize Visa2 packet formats and will wait for an entire packet
(typically bounded by STX … ETX LRC) from the terminal before forwarding terminal data
to the host. Data not in packet boundaries are forwarded as soon as they are detected.
There are a number of options when using Simple POS protocol. Note that these settings are
independent of the serial settings for the port.
Data Encoding determines how the data is processed going to and from the host.
“Encode POS terminal data as 7-bit data with even parity” sends the data bytes going
to the host as if they were 7-bit data with even parity.
“Pass all POS terminal data as raw 8-bit data” sends data to the host exactly as it was
received on the port
“Perform TeleCheck binary mode processing” supports binary mode packets from a
TeleCheck Eclipse terminal. These are sent to the host in 8-bit raw mode.