Jetway Computer NC92 - Manual (Page 31)

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(default). Full-duplex means that you can transmit and send information simultaneously.
Half-duplex is the transmission of data in both directions , but only one direction at a time.
Onboard Parallel Port
The optional settings are: Disabled, 378/IRQ7, 278/IRQ5 AND 3BC/IRQ7.
Parallel Port Mode
SPP : Standard Parallel Port
EPP : Enhanced Parallel Port
ECP : Enhanced Com Port
SPP/EPP/ECP/ECP+EPP
To operate the onboard parallel port as Standard Parallel Port only, choose “SPP.” To operate
the onboard parallel port in the EPP modes simultaneously, choose “EPP.” By choosing “ECP”,
the onboard parallel port will operate in ECP mode only. Choosing “ECP+EPP” will allow the
onboard parallel port to support both the ECP and EPP modes simultaneously. The ECP mode
has to use the DMA channel, so choose the onboard parallel port with the ECP feature. After
selecting it, the following message will appear: “ECP Mode Use DMA” at this time, the user can
choose between DMA channels 3 to 1. The onboard parallel port is EPP Spec. compliant, so
after the user chooses the onboard parallel port with the EPP function, the following message will
be displayed on the screen: “EPP Mode Select.” At this time either EPP 1.7 spec. or EPP 1.9
spec. can be chosen.
3-8 Power Management Setup
The Power Management Setup allows you to configure your system to most effectively save
energy saving while operating in a manner consistent with your own style of computer use.