IBM 5000 manual Serial Port Connectors, Note Serial

Serial Port Connectors

Serial ports are used to communicate with printers, plotters, external

auxiliary terminals,

and other

computers. Your

server

provides

two

ser

and

B), and a

special type of serial port

(Management

Port

C,

descr

next

page). You can add more serial ports

by installing

a

serial

ada

the

expansion

slots.

Note: Serial

port A

can be shared by the

system-management

processor

operating system. Serial port B is used by the operating syste

Management port C is controlled exclusively by the system-managemen

processor, cannot be used by the operating system, and cannot

configured using the Configuration/Setup Utility program. See the

“Advanced

System Management

Information”

sectionServerof Librarythis

for information about configuring serial

ports

A

and

C.

Serial ports transferasynchronouslydata ;

they

can transmit

any

number

of

bits

any

time,

with

no

restriction on the

duration

of

the

pauses

between

The serial ports transmit and receive data and commands at a rate o second (bps) up to 115 200 bps. The bits-per-second measurement is comm referred to asbaudtherate.

Each	of the	two serial connectors provided on your Netfinity 5000 serv
9-pin,	D-shell	connector.
		1	5

6 9

Table 4 shows the pin-number assignments for the serial port connectors pin-number assignments conform to the industry standard.

Table	4. Serial Port Connector Pin-Number Assignments
Pin	Signal				Pin	Signal
1	Data	carrier		detect		6 Data	set	ready
2	Receive		data		7	Request		to send
3	Transmit		data		8	Clear	to	send
4	Data	terminal		ready	9	Ring	indicator
5	Signal	ground

Chapter 4. Installing Options83