Datamax H Class Operator's Manual page 16

Notes: (1) An "off the shelf" serial cable can be used with Xon/Xoff handshaking.
(2) For RS-422/RS-485 operation, a jumper must be moved on the printer's main
board. Click here for details.
Ethernet Connection: The Internal Ethernet Print Server operates under several menu-
selectable modes, as detailed under the NIC ADAPTER section of this manual. Depending on
the length, the cable should be Category / Type 3 or better. When using this interface, refer to
Ethernet Setup for proper cabling, setup, and configuration.
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