2-22 Chapter 2
(17). Back Panel Connectors [KM1, LPT1, COM1, COM2, OPT-OUT1, AUDIO1, AUDIO2, LAN,
USB1]
• Mouse: Connects to PS/2 mouse.
• Keyboard: Connects to PS/2 keyboard.
• LPT1: Connects to printer or other devices that support this communication protocol.
• COM1/COM2: Connects to external modem, mouse or other devices that support this
communication protocol.
• OPT-OUT1: This connector provides an S/PDIF Out connection through optical fiber to digital
multimedia devices.
• AUDIO1:
R.L./R.R. (Rear Left / Rear Right): Connects to the rear left and rear right channel in the 5.1
channel audio system.
Cen./Sub. (Center / Subwoofer): Connects to the center and subwoofer channel in the 5.1 channel
audio system.
• AUDIO2:
Mic In: Connects to the plug from external microphone.
Line In: Connects to the line out from external audio sources.
F.L./F.R. (Front Left / Front Right): Connects to the front left and front right channel in the
5.1-channel or regular 2-channel audio system.
• LAN: Connects to Local Area Network.
• USB1: Connects to USB devices such as scanner, digital speakers, monitor, mouse, keyboard, hub,
digital camera, joystick etc.
SI7 Series