Protocol also handles the sending and receiving of messages using a datagram or serial port connection.

Protocol还处理使用数据报或串行端口连接的消息发送与接收。

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In this case, you must configure the target computer to accept a serial-port-to-serial-port connection.

在本例中，必须配置目标计算机以接受串行端口到串行端口的连接。

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Its multiroom audio capabilities are similarly extensive with Powered Zone 2 and 3 capabilities, multiple DC triggers, bidirectional RS-232, and Onkyo's exclusive Universal Port for connection of an optional iPod Dock and HD Radio tuner.

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There's a reason why the Xbox also works as a DVD player and has a hard drive and an Ethernet connection port on the back suitable for cable modem or a digital subscriber line Internet connection.

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Both also have the new Firewire 800 connection port, which looks a little different from the Firewire ports we already know and love.

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