IBM 8309, 8308, 8312, 8313, 8311, 8310, 8315, 8314, 8301, 8306, 8304, 8302, 8303, 8305 Connector Description

Connector	Description
Serial connector	Used to attach an external modem, serial printer, or other
	devices that use a 9-pin serial connector.
Mouse connector	Used to attach a mouse, trackball, or other pointing device that
	uses a standard mouse connector.
Parallel connector	Used to attach a parallel printer, parallel scanner, or other
	devices that use a 25-pin parallel connector.
Ethernet connector	Used to attach an Ethernet cable for a local area network
	(LAN).
	Note: To operate the computer within FCC Class B limits, use
	a Category 5 Ethernet cable.
Audio line in connector	Used to receive audio signals from an external audio device,
	such as a stereo system. When you attach an external audio
	device, a cable is connected between the audio line out
	connector of the device and the audio line in connector of the
	computer.
Audio line out connector	Used to send audio signals from the computer to external
	devices, such as powered stereo speakers (speakers with
	built-in amplifiers), headphones, multimedia keyboards, or the
	audio line in connector on a stereo system or other external
	recording device.
Microphone connector	Used to attach a microphone to your computer when you want
	to record voice or other sounds on the hard disk if you use
	speech-recognition software.
USB connectors	Used to attach a device that requires a Universal Serial Bus
	(USB) connection, such as a USB scanner or USB printer. If you
	have more than four USB devices, you can purchase a USB
	hub, which you can use to connect additional USB devices.
Keyboard connector	Used to attach a keyboard that uses a standard keyboard
	connector.

36Hardware Maintenance Manual