Section 7: Interface Specifications
Page 7-2 GY412 Operator Manual
7.2 INTERFACE
7.2.1 Main Port and Sub Port
By assigning the interfaces to [Main Port] and [Sub Port], the following can be performed.
(1) Main port
Main port receives the print data mainly. All the SBPL commands can be used for this port.
(2) Sub port
Sub port monitors the printer status and connects the printer with the external device. As for available
commands, refer to [3.2 Return Status].
7.2.2 Interface Combination
The interface combination can be used for main port and sub port as follows.
Main Port
RS-232C USB LAN
Sub
Port
RS-232C o o
USB o o
LAN o o
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