Argox X Series - Manual (Page 125)

125
Ethernet Interface
The following port complies with Ethernet communication.
Auto Polling
Both the serial port and parallel port of this printer can be active at
the same time, i.e. the printer can simultaneously communicate
with two PCs via different ports. However as no port contention is
made for this printer, if both PCs transmit data at the same time the
data may become damaged in the receiving buffer.
Pin Signal
1 Transmit+
2 Transmit-
3 Receive+
4 Reserved
5 Reserved
6 Receive-
7 Reserved
8 Reserved