Black Box Code SW590A-R2 Manual De Usuario

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In addition, there are some system characteristics
that are set with the eighth DIP switch of the
individual port switch banks. Sections 3.6 and 3.7
explain these functions in depth. 
3.4 Bank Assignments
The individual port switch banks are assigned as
follows:
Bank Label
Port 
SWA
Master Device Port
SWB
0
SWC
1
SWD
2
SWE
3
The Four-Port Expansion Board provides these
additional banks:
Bank Label
Port 
SWH
4
SWI
5
SWJ
6
SWK
7
3.5 Configuring Ports with the Individual Port
Switch Banks
To set the switch banks, use a small screwdriver or
other small object with a clean edge or point. The
individual port switch banks are identical in
function, and the set of charts provided on the
following pages applies to all of them. 
3.5.1 P
ORT
S
PEED
(S
WITCHES
1, 2, 
AND
3)
Speed
Set Switches
1
2
3
110 bps
ON
ON
ON
300 bps
OFF
ON
ON
600 bps
ON
OFF
ON
1200 bps
OFF
OFF
ON
2400 bps
ON
ON
OFF
4800 bps
OFF
ON
OFF
9600 bps
ON
OFF
OFF
19200 bps
OFF
OFF
OFF
3.5.2 P
ARITY
(S
WITCHES
AND
5)
Parity
Set Switch
4
5
Even OFF
ON
Odd ON
OFF
None
OFF
OFF
3.5.3 W
ORD
S
IZE
(S
WITCH
6)
Size
Set Switch 6
7 bits per word
OFF
8 bits per word
ON
3.5.4 F
LOW
C
ONTROL
(S
WITCH
7)
Flow Control
Set Switch 7
Hardware (DTR/CTS)
ON
Software (X-ON/X-OFF)
OFF
3.6 Setting Global Characteristics with the
System Switch Banks
Refer to the explanations and the charts below to
set the system switch banks SWF and SWG. 
3.6.1 F
UNCTIONS OF
S
WITCH
B
ANK
SWF 
Responsibility for the Link Command
When the COS II receives a control code sequence
from the proper device, it will establish a
communications link between the master port and
one of the slave ports. If it then receives the lockout
character—a character with a value of 38 in
hexadecimal—it will ignore the remaining unlinked
subordinate ports. For more information on links
and lockouts, see Sections 4.2 and 4.3.
You can set the Switch to accept the command to
link from only the master port, only a slave port, or
from either the master or a slave port. Switches
SWF 1 and SWF 2 designate the origin of the link.
Set SWF 
Origin of Command
1
2
master
ON
ON
slave
OFF
ON
either master or slave
ON or OFF
OFF
NOTE: If the slave ports are set up for hardware
flow control, or if DTR/CTS pass-through is
enabled, you should set the Switch to
accept a link command from the master port
only.
8
CODE OPERATED SWITCH II