Black Box 5000 manual Autobaud Rates, Multiserver Bit Conversion

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

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