Autobaud Rate Detection (ABR). The Multiserver 5000 has the capability of automatically determining the data rate of a port in the range of 50 to 19,200 bps by dynamically examining the first (sign-on) character after a connect. In addition, the Multiserver will pass the sign-on character (a carriage return) to a host computer, if the port configuration is set in the following manner:

• Port where the sign-on character is originated.

Data Rate (option 1)

= ABR

Channel End To Host/

 

To Terminal (option 6)

= Terminal

• Port where the sign-on character is received.

Data Rate (option 1)

= ABR

Channel End To Host/

 

To Terminal (option 6)

= Host

The data rates supported are shown in Table 9-9.

 

Table 9-9. Autobaud Rates

Rate

Code Level

 

ABR Sign-on

(bps)

(bits)

Stop Bits

Character

50

5

1.5

<cr>

75

5

1.5

<cr>

110

8

1

<cr>

150

8

1

<cr>

200

8

1

<cr>

300

8

1

<cr>

600

8

1

<cr>

1200

8

1

<cr>

1800

8

1

<cr>

2400

8

1

<cr>

4800

8

1

<cr>

9600

8

1

<cr>

19200

8

1

<cr>

 

 

 

 

CHAPTER 9: Data-Channel Configuration

Code Level and Parity Conversion. When you select the code level, note that Multiserver’s code level includes parity in its data bits. Table 9-10 shows the actual bit conversion.

Table 9-10. Multiserver Bit Conversion

Code Level*

Parity

Number of

Number of

(option 2)

(option 3)

Data Bits

Parity Bits

 

 

 

 

9

E, O

8

1

 

 

 

 

8

N

8

0

 

 

 

 

8

E, O, M, S

7

1

 

 

 

 

7

N

7

0

 

 

 

 

7

E, O, M, S

6

1

 

 

 

 

6

N

6

0

6

E, O, M, S

5

1

 

 

 

 

5

N

5

0

 

 

 

 

Key: E

=

Even

* Includes parity bit

M

= Mark

 

N

= None

 

O

= Odd

 

S

=

Space

 

97

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