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Chapter 2: SETUP
The 232XS5 is set up using an eight-position dipswitch and a
three-position set of jumpers. This dipswitch is used to set the
communication format, port configuration and expansion switch
address. The jumpers are used to set the smart switch/port
combiner mode, to enable/disable the enhanced features and to
enable/disable Expander mode. To change the settings on the
switch, remove the power from the unit, and remove the screws (4)
from the bottom of the 232XS5. The dipswitch is located on the top
of the PC board (side with LED's) and is labeled "SW1." The other
dipswitch, labeled "SW2" is used to set the second character of the
preamble. After the switches and jumpers have been set to match
your requirements, you can put the unit back together. Table 1
shows the settings for dipswitch "SW1" and Table 2 shows the
mode settings for "JP6" jumpers.
Table 1. Communication & Port Setup
Dipswitch SW1
1
2
3
4
5
6
7
8
0
0
0
X
X
X
X
1
0
0
X
X
X
X
0
1
0
X
X
X
X
1
1
0
X
X
X
X
0
0
1
X
X
X
X
1
0
1
X
X
X
X
0
1
1
X
X
X
X
1
1
1
X
X
X
X
X
X
X
0
X
X
X
X
X
X
1
X
X
X
X
X
X
X
0
X
X
X
X
X
X
1
X
X
X
X
X
X
X
0
0
X
X
X
X
X
1
0
X
X
X
X
X
0
1
X
X
X
X
X
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = OFF
1 = ON
* = FACTORY DEFAULT
232XS5-1005 Manual
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Setting
X
1200 Baud
X
2400 Baud
X
4800 Baud
X
9600 Baud *
X
19.2K Baud
X
38.4K Baud
X
57.6K Baud
X
115.2K Baud
X
8 Data Bits *
X
7 Data Bits
X
Parity Disabled *
X
Parity Enabled
X
Expansion Address A *
X
Expansion Address B
X
Expansion Address C
X
Expansion Address D
0
DCE master port *
1
DTE master port
X = DON'T CARE
On = Jumper Installed Off = Jumper Removed X = DON'T CARE
Port Configuration
In order to determine the proper port configuration of the 232XS5, it
is necessary to have a basic understanding of the terms DCE and DTE.
RS-232 was designed, using DB-25 connectors, for connecting a DTE
(Data Terminal Equipment) device to a DCE (Data Communication
Equipment) device. Each device will have inputs on pins that
correspond to outputs on the same pins of the other device. For
example, a DTE device will transmit data out on pin 2 (on a DB-25) and
a DCE device will receive data in on pin 2 (on a DB-25). IBM PCs and
serial printers are DTE devices, modems are DCE devices.
Originally the RS-232 standard specified only a 25 pin D-sub
connector. Since then, the use of a 9 pin D-Sub supporting only a
portion of the original RS-232 signals has been used extensively,
starting with the IBM PC and migrating into other peripherals. The
pinouts for this 9 pin connector have since become the EIA/TIA 574
standard. This standard specifies a DTE device that transmits on pin 3
and receives on pin 2, with the DCE having the opposite configuration.
If an IBM PC compatible (DTE device) is going to be connected to
the 232XS5 master port, the master port should be configured as a DCE
port. If a modem (DCE device) is going to be connected to the master
port, it should be configured as a DTE port.
The master port can be configured as a DCE port (data received on
pin 3) or a DTE port (data received on pin 2) by setting dipswitch "SW1",
position 8. To configure the master port as a DCE port, move dipswitch
"SW1", position 8, to the "OFF" position. When the master port is
configured as a DCE port, ports A, B, C, D & E will become DTE ports
(Refer to Table 3). To configure the master port as a DTE port move
dipswitch "SW1", position 8, to the "ON" position. When the master port
is configured as a DTE port, ports A, B, C, D & E will become DCE ports
(Refer to Table 4). Always power down the smart switch when changing
switch settings.
4
3
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Table 2. Mode Setup
Jumper JP6
A
B
C
Setting
ON
X
X
Enhanced Disabled *
OFF
X
X
Enhanced Enabled
X
ON
X
Smart Switch *
X
OFF
ON
Expansion
X
X
ON
Combiner Disabled *
X
ON
OFF
Combiner Enabled
* = FACTORY DEFAULT
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
232XS5-1005 Manual
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