Apple 145B, 170 manual Interfaces, Scsi

	Specifications	I/O Interfaces - 6
		I/O Interfaces
SCSI		HDI-30 SCSI port with 1.5 MB/sec. transfer rate
		Supports up to five external SCSI devices
		Does not provide termination power

Apple Desktop Bus

Apple Desktop Bus (ADB) port (maximum of three ADB devices is recommended)

200 mA maximum current draw for all ADB devices

Serial

Sound

Two RS-422 serial ports; mini DIN-8 connectors

Monaural sound-in port

Stereo sound-out headphone jack that plays CD audio tracks in stereo and computer-generated sounds in mono