91InterfacesOverviewThis chapter describes the host interfaces provided with the printer. The printer interface is the pointwhere the data line from the host computer plugs into the printer. The interface processes allcommunications signals and data to and from the host computer. Plus, with the Auto Switching feature,you can configure the printer to accept several interfaces at the same time (see Auto Switching on page75).IMPORTANT To comply with Electromagnetic Compatibility (EMC) regulatory requirements allelectrical signal interface cables connected to this printer must be of a minimalquality level, be of the correct length, and be properly installed.The RS-232 port and parallel port interface cables must meet the followingspecifications:• The cable design must be double shielded with a copper braid over analuminum mylar foil and not just a conductive foil spiral wrapped around adrain wire.• The shield must terminate coaxially (360 degrees) to a metal connectorhousing and not be terminated by just a simple wire lead.• The cable length, including connectors, must be 5 meters or less.• The cable connector anchor screws must be securely seated into theprinter receptor hardware.For reference purposes only, two specific Centronics parallel port cables that havebeen tested and found to comply with these requirements are Belkin ® part numberF2A046-10 and Primelogic® part number PLU 2823224. Other electrically equivalentcables are acceptable.This chapter describes the interfaces provided with the printer.Standard Host Interfaces:• High Speed Serial Port (RS-232)• USB 2.0 Universal Serial BusOptional Host Interfaces:• Centronics Parallel• IEEE 1284 parallel bidirectional• Ethernet 10/100BaseTIn addition to descriptions for the multi-line interfaces, this chapter also provides instructions forconfiguration of terminating resistors for the parallel interfaces.
