is connected to the Ahi and Clo of the SM4042. The next table provide the setting for a few single-
ended connections to examplify this application.
Closed
channel relay
Closed Bus relay Closed
Cofiguration relay
DMM Low
terminal
DMM High
terminal
Ch1 A-to-A
-
- Ch1Hi
Ch40 A-to-A D-to-A - Ch40Hi
Ch1 C-to-C C-to-A - Ch1Lo
Ch40 C-to-C D-to-C - Ch40Lo
Ch1 B-to-B B-to-A Ch1Hi
-
Ch40 B-to-B D-to-A,
B-to-A
Ch40Hi
-
Ch1 D-to-D
D-to-A Ch1Lo
-
Ch40 D-to-D -
Ch40Lo
-
Ch1, Ch40
A-to-A ,D-to-D
-
Ch40Lo
Ch1Hi
Ch1
A-to-A, D-to-D,
D-to-A
Ch1Lo
Ch1Hi
Ch1
C-to-C, B-to-B
C-to-A, B-to-A
Ch1Hi
Ch1Lo
4.5.2 An 84 Point, Single End Configuration
By connecting AHi (pin 30B) and CLo (pin 30C) we can create an 84 single ended selector switch.
The collector of this switch is pin 30B (Figure 4-14). Ch1 corresponds to Ch1Hi, Ch2 to Ch2Hi
…Ch10 is Ch10Hi etc.. Using Universal mode, make sure to select both, the appropriate channel
relay as well as the various configuration relays.
Figure 4-14. Single point switching is enabled by connecting A-bus High and C-bus Low.
5.0 SM4040 Scanner Family Windows Interface
The windows release supports Windows98®, Windows95®, WinNT4.0®, and Windows2000®. The
primary means of controlling the scanners is a .DLL file that interfaces with the PCI bus via a .VXD
file for Windows98/95 or .SYS driver for WinNT4.0® or Windows2000®. All of these components
are placed at the appropriate directories, and registry entries are made during Setup.
5.1 Distribution Files
The main directory of the distribution diskette contains the Microsoft® Windows™ SM4040 Scanner
software. To install this software, enter the command "A:SETUP" in the "Run Program" menu of the
Windows File Manager; or double-click on the SETUP.EXE file name from the File Explorer Tool
Manager window. Most files on this diskette are compressed, and must be installed using the SETUP
program.
The SM4040 DLL is a protected-mode Microsoft® Windows™ DLL that will control the
Signametrics SM4020, SM4022, SM4040, and SM4042. It is provided with a sample Visual Basic™
control-panel application (GUI) to demonstrate the Scanner and the interface to the DLL. Check the
README.TXT file for more information about the files contained on the diskette. Some important
files to note are:
Signametrics
26
Summary of Contents for SM4020
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