HP B180L, B132L Serial I/O Connectors, Scsi Connectors, Serial I/O Pins Pin No Signal Description

System Overview

System Unit Rear Panel Connectors

Serial I/O Connectors

You can attach a variety of pointing devices (such as a mouse or trackball), or peripheral devices to the Serial Input/Output (SIO) ports on the B132L/ B132L+/B160L/B180L workstation. Peripheral devices include printers, plotters, modems, and scanners. Consult the documentation that accompa- nies each pointing or peripheral device for specific information concerning its use.

The SIO ports are programmable. You can set functions such as bit rate, character length, parity, and stop bits. The SIO ports are used as an interface for serial asynchronous devices to the CPU. The ports operate at up to a 460.8K baud rate.

Table 2 shows the SIO connector pin listings. The serial connectors are 9-pin D-sub connectors. Signal names are those specified in the EIA RS-232 stan- dard.

Table 2	Serial I/O Pins
	Pin No.	Signal	Description
	1	DCD	Data Carrier Detect
	2	RXD	Receive Data
	3	TXD	Transmit Data
	4	DTR	Data Terminal Ready
	5	GND	Ground
	6	DSR	Data Set Ready
	7	RTS	Request To Send
	8	CTS	Clear To Send
	9	RI	Ring Indicator

SCSI Connectors

Use the narrow single-ended SCSI, and fast, wide differential SCSI, or ultra wide, single-ended SCSI connectors to connect external SCSI devices such as DDS-format tape drives, disk drives and CD-ROM drives. Consult the

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