Chapter 9: data-channel configuration – Black Box 5000 User Manual
Page 99
CHAPTER 9: Data-Channel Configuration
97
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.
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 9-9. 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>
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