Relays and Optocoupler

These cards are developed to control and record external circuits. By using optocouplers the controlling system is always protected by galvanic isolation.
Optocouplers switch external circuits galvanically isolated or can record switching activities of external circuits. Relays switch external circuits mechanically.

 
USB  
 
    Relay Opto-Input Opto-Output
Bus Numbers Type Capacity / Power Number of Opto-In Voltage Number of Opto-Out Voltage
                 
USBOPTOREL8USB 8 switch-on 1A / 15W 8 5V-30V - -
USB 8 Opto In + 8 Relay Card
Input edge detection ( 8 Flipflops through software readable ),
Timeout detection ( switches all outputs off if software hangs ),
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder,
Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBOPTOREL8_3AUSB 8 switch-on 3A / 90W 8 5V-30V - -
USB 8 Opto In + 8 Relay Card
Input edge detection ( 8 Flipflops through software readable ),
Timeout detection ( switches all outputs off if software hangs ),
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder,
Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBOPTOREL16USB 16 switch-on 15W / 1A 16 5V-30V - -
USB 16 Opto In + 16 Relay Card
Input edge detection ( 16 Flipflops through software readable ), Timeout detection ( switches all outputs off if software hangs ), IRQ on change of input signal
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBOPTOREL16USB 16 switch-on 15W / 1A 16 5V-30V - -
USB 16 Opto In + 16 Relay Card
Input edge detection ( 16 Flipflops through software readable ), Timeout detection ( switches all outputs off if software hangs ), IRQ on change of input signal
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBOPTOREL16_3AUSB 16 switch-on 3A/90W 16 5V-30V - -
USB 16 Opto In + 16 Relay Card
Input edge detection ( 16 Flipflops through software readable ), Timeout detection ( switches all outputs off if software hangs )
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBOPTOREL16_3AUSB 16 switch-on 3A/90W 16 5V-30V - -
USB 16 Opto In + 16 Relay Card
Input edge detection ( 16 Flipflops through software readable ), Timeout detection ( switches all outputs off if software hangs ), IRQ on change of input signal
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBOPTO16IOUSB - - - 16 5V-30V 16 5V-30V
USB 16 Opto In + 16 Opto Out
32 LEDs signal the state of all inputs and outputs
Fast and precise recording and processing of switching events ( Input edge detection )
Drivers for Windows 7 / Vista / XP / 2000 / Server 2k-2008 R2 and Linux
Samples for Visual-Studio .NET, Visual Basic, Visual-C, C, C++, Borland Delphi, Borland C, Agilent Vee, Labview   More info...

                 
USBOPTO16IOUSB - - - 16 5V-30V 16 5V-30V
USB 16 Opto In + 16 Opto Out
32 LEDs signal the state of all inputs and outputs
Fast and precise recording and processing of switching events ( Input edge detection )
Samples for Visual-Studio .NET, Visual Basic, Visual-C, C, C++, Borland Delphi, Borland C, Agilent Vee, Labview   More info...

                 
USBOPTOREL32USB 32 switch-on 1A / 15W 32 5V-30V - -
USB 32 Opto In + 32 Relay Card
Special Features: Input edge detection (32 Flipflops through software readable),
Timeout detection ( switches all outputs off if software hangs ),
Fast and precise recording and processing of switching events  More info...

                 
USBOPTOREL32USB 32 switch-on 1A / 15W 32 5V-30V - -
USB 32 Opto In + 32 Relay Card
Special Features: Input edge detection (32 Flipflops through software readable),
Timeout detection ( switches all outputs off if software hangs ),
Fast and precise recording and processing of switching events  More info...

                 
USBOPTOREL32_3AUSB 32 switch-on 1A / 15W 32 5V-30V - -
USB 32 Opto In + 32 Relay ( 3A ) Card
Special Features: Input edge detection (32 Flipflops through software readable),
Timeout detection ( switches all outputs off if software hangs ),
Fast and precise recording and processing of switching events  More info...

                 
USBOPTO32IOUSB - - - 32 5V-30V 32 5V-30V
USB 32 Opto In + 32 Opto Out
Timeout detection
Simple assembly, as a stand alone equipment in the laboratory area or as a mobile equipment with a notebook
Fast and precise recording and processing of switching events (Input edge detection)  More info...

                 
USBOPTO32IOUSB - - - 32 5V-30V 32 5V-30V
USB 32 Opto In + 32 Opto Out
Timeout detection
Simple assembly, as a stand alone equipment in the laboratory area or as a mobile equipment with a notebook
Fast and precise recording and processing of switching events (Input edge detection)  More info...

                 
USBOPTO64INUSB - - - 64 5V-30V - -
USB 64 Opto In Card with galvanic isolated optocoupler inputs
Special Features: Input edge detection (64 Flipflops through software readable),IRQ on change of input signal
Fast and precise recording and processing of switching events
Simple assembly in a rack, as a standalone equipment in the laboratory area or as a mobile equipment for a notebook  More info...

                 
USBOPTO64INUSB - - - 64 5V-30V - -
USB 64 Opto In Card with galvanic isolated optocoupler inputs
Special Features: Input edge detection (64 Flipflops through software readable),IRQ on change of input signal
Fast and precise recording and processing of switching events
Simple assembly in a rack, as a standalone equipment in the laboratory area or as a mobile equipment for a notebook  More info...

                 
USBOPTOIN32USB - - - 64 5V-30V - -
USB 32 Opto In Card with galvanic isolated optocoupler inputs
Special Features: Input edge detection (64 Flipflops through software readable)
Fast and precise recording and processing of switching events
Simple assembly in a rack, as a standalone equipment in the laboratory area or as a mobile equipment for a notebook  More info...

                 
USBREL32USB 64 switch-on 3A/90W
1A/15W
- - - -
USB 32 Relay Card
Special Features: Timeout detection ( switches all outputs off if software hangs )
32 LED´s for optical function control of all output signals
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBREL32_3AUSB 32 SPST 3A/90W
1A/15W
- - - -
USB Relay Switch Box with 32 Relays 3A/90W
Special Features: Timeout detection ( switches all outputs off if software hangs )
32 LED´s for optical function control of all output signals
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBREL64USB 64 switch-on 3A/90W
1A/15W
- - - -
USB 64 Relay Card
Special Features: Timeout detection ( switches all outputs off if software hangs )
64 LED´s for optical function control of all output signals
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBREL64USB 64 switch-on 3A/90W
1A/15W
- - - -
USB 64 Relay Card
Special Features: Timeout detection ( switches all outputs off if software hangs )
64 LED´s for optical function control of all output signals
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBREL64_3AUSB 64 SPST 3A/90W
1A/15W
- - - -
USB 64 Relay Card with 3A relays
Special Features: Timeout detection ( switches all outputs off if software hangs )
64 LED´s for optical function control of all output signals
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBOPTO64OUTUSB - - - - - 64 5V- 30V
USB 64 Opto-Out
64 LED´s for optical function control of all output signals
Timeout detection ( switches all outputs off if software hangs )
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBOPTOOUT32USB - - - - - 64 5V- 30V
USB 32 Opto-Out
32 LED´s for optical function control of all output signals
Timeout detection ( switches all outputs off if software hangs )
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
USBIN8USB - - - 8 5V .. 30V - -
The QUANCOM® USBIN8 provides eight optocoupler inputs with a signal range of 5V .. 30V. The state of each input is visualized by 8 LEDs. No external power supply is needed.  More info...

                 
USBOPTO8USB - - - 8 5V-30V - -
USB 8 Opto In
8 Isolated inputs ( 5V...30V )
Up to 4 x modules in one PC System supported
Power supply over USB  More info...

                 
USBOPTO8USB - - - 8 5V-30V - -
USB 8 Opto In
8 Isolated inputs ( 5V...30V )
Up to 4 x modules in one PC System supported
Power supply over USB  More info...

                 
USBOPTO8/LCUSB - - - 8 5V-30V - -
USB module with eight optocoupler inputs. Easy access through QLIB programming API. Many sample projects for different programming lanuages and IDEs included. Drivers for 7 / Vista / XP / 2000 / Server 2k-2008 R2 / 98 / 95 / ME and Linux  More info...

                 
USBREL2USB 2 SPST 1A / 15W - - - -
This 2 channel USB relays module provides two SPST relays, which are able to switch up to 1A at 15W. Two LEDs indicate the current status of the module and additionally all output channels are visualized by LEDs, too. Power supply for this small module is done through the USB connection.  More info...

                 
USBREL4USB 2 switch-on 1A / 15W - - - -
This 4 channel USB relays module provides four SPST relays, which are able to switch up to 1A at 15W. Two LEDs indicate the current status of the module and additionally all output channels are visualized by LEDs, too. Power supply for this small module is done through the USB connection.  More info...

                 
USBREL8USB 8 switch-on 1A / 15W - - - -
USB 8 Channel Relay Module
8 LED's visualizing the state of the output lines
Up to 4 x modules in one PC System supported
No external power supply required  More info...

                 
USBREL8USB 8 switch-on 1A / 15W - - - -
USB 8 Channel Relay Module
8 LED's visualizing the state of the output lines
Up to 4 x modules in one PC System supported
No external power supply required  More info...

                 
USBREL8-UMUSB 8 changeover 1A / 10W - - - -
The USBREL8-UM provides a total of 8 change-over ( SPDT ) relays. The state of each output channel is visualized by two LEDs. Each output channel is capable of switching up to 1A at 10W.  More info...

                 
USBREL8-UMUSB 8 Um 1A / 10W - - - -
The QUANCOM® USBREL8-UM comes with 8 onbaord switch-over relays. The current switching status of each output is indicated by two LEDs for each relay. The driver CD includes drivers for Windows 2000 to Windows 7 and lots of sample projects for various IDEs and programming languages, such as C/C++, Delphi, Visual Basic, Labview i.e..^  More info...

                 
USBREL8/LCUSB 8 switch-on 1A / 15W - - - -
USB 8 Channel Relay ( 1A ) Module. No external power supply required.  More info...

                 
USBADPETH               
The USBADPETH is designed for the following modules USBOPTOREL8, USBOPTOREL32, USBOPTO32IO, USBOPTO64IN, USBOPTO64OUT and our USBREL64. This device upgrades those modules with a ethernet port (TCP/IP). Also the USBAD8DAC2, USBAD8DAC2/14 and USBTTL24 are upgradeable with this device.
  More info...

                 
USBADPRS232               
The USBADPRS232 is designed for the following modules USBOPTOREL8, USBOPTOREL32, USBOPTO32IO, USBOPTO64IN, USBOPTO64OUT and our USBREL64. This device upgrades those modules with a ethernet port (TCP/IP). Also the USBAD8DAC2, USBAD8DAC2/14 and USBTTL24 are upgradeable with this device.   More info...

 
PCI  
 
    Relay Opto-Input Opto-Output
Bus Numbers Type Capacity / Power Number of Opto-In Voltage Number of Opto-Out Voltage
                 
PCIOPTOREL16PCI 16 switch-on 1A / 15W 16 5V-30V - -
16 Opto isolated inputs ( 0...30V ) and 16 relays
Special Features: Input edge detection ( 16 Flipflops through software readable ), Timeout detection ( switches all outputs off if software hangs ), IRQ on change of input signal
32 LED for optical function control ( display the state of all inputs and relays )
Examples for Visual-Studio .NET, Visual Basic, Visual C/C++, Borland, Agilent Vee, Labview, Sun Java and others
  More info...

                 
PCIOPTO16IOPCI - - - 16 5V-30V 16 5V-30V
16 Opto isolated inputs ( 0...30V ) and 16 Opto isolated outputs
Special Features: Input edge detection ( 16 Flipflops through software readable ), Timeout detection ( switch all outputs off if software hangs ), IRQ on change of input signal
32 LED for optical function control ( display the state of all inputs and outputs )  More info...

 
PAR  
 
    Relay Opto-Input Opto-Output
Bus Numbers Type Capacity / Power Number of Opto-In Voltage Number of Opto-Out Voltage
                 
PAR8RLPT 8 switch-on 15W / 1A - - - -
Connected via printer port
Cables easy connectable
Up to 8 modules addressable on one printer port
12 V Power supply on board
Easy mountable  More info...

                 
PAR8OLPT - - - 8 5V-30V - -
Connected via printer port
Up to 8 modules addressable on an interface
12 V Power supply on board
Applications: SPS etc.  More info...

 
Seriell  
 
    Relay Opto-Input Opto-Output
Bus Numbers Type Capacity / Power Number of Opto-In Voltage Number of Opto-Out Voltage
                 
SEROPTOREL8Ser 8 switch-on 1A / 15W 8 5V-30V - -
Serial 8 Opto In + 8 Relay Card
Input edge detection ( 8 Flipflops through software readable )
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder,
Labview, Sun Java, Agilent VEE, LabWindows/CVI  More info...

                 
SEROPTOREL8Ser 8 switch-on 1A / 15W 8 5V-30V - -
Serial 8 Opto In + 8 Relay Card
Input edge detection ( 8 Flipflops through software readable ),
Timeout detection ( switches all outputs off if software hangs ),
IRQ on change of input signal
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder,
Labview, Sun Java, Agilent VEE, LabWindows/CVI  More info...

                 
SEROPTOREL8_3ASer 8 switch-on 3A / 90W 8 5V-30V - -
Serial 8 Opto In + 8 Relay Card
Input edge detection ( 8 Flipflops through software readable ),
Timeout detection ( switches all outputs off if software hangs )
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder,
Labview, Sun Java, Agilent VEE, LabWindows/CVI  More info...

                 
SEROPTOREL8_3ASer 8 switch-on 3A / 90W 8 5V-30V - -
Serial 8 Opto In + 8 Relay Card
Input edge detection ( 8 Flipflops through software readable ),
Timeout detection ( switches all outputs off if software hangs ),
IRQ on change of input signal
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder,
Labview, Sun Java, Agilent VEE, LabWindows/CVI  More info...

                 
SEROPTOREL32Ser 32 switch-on 1A / 15W 32 5V-30V - -
Seriell 32 Opto In + 32 Relay Card
Special Features: Input edge detection (32 Flipflops through software readable),
Timeout detection ( switches all outputs off if software hangs ),
IRQ on change of input signal
Fast and precise recording and processing of switching events  More info...

                 
SEROPTOREL32Ser 32 switch-on 1A / 15W 32 5V-30V - -
Seriell 32 Opto In + 32 Relay Card
Special Features: Input edge detection (32 Flipflops through software readable),
Timeout detection ( switches all outputs off if software hangs ),
IRQ on change of input signal
Fast and precise recording and processing of switching events  More info...

                 
SEROPTO32IOSer - - - 32 5V-30V 32 5V-30V
Seriell 32 Opto In + 32 Opto Out
Timeout detection
Simple assembly, as a stand equipment in the laboratory area or as a mobile equipment with a notebook
Fast and precise recording and processing of switching events (Input edge detection)  More info...

                 
SEROPTO32IOSer - - - 32 5V-30V 32 5V-30V
Seriell 32 Opto In + 32 Opto Out
Timeout detection
Simple assembly, as a stand equipment in the laboratory area or as a mobile equipment with a notebook
Fast and precise recording and processing of switching events (Input edge detection)  More info...

                 
SERREL64Ser 64 switch-on 3A/90W
1A/15W
- - - -
Seriell 64 Relay Card
Special Features: Timeout detection ( switches all outputs off if software hangs )
64 LED´s for optical function control of all output signals
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, HP VEE respectively Agilent Vee, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
SEROPTO64INSER - - - 64 5V-30V - -
Seriell 64 Opto-In
Special Features: Input edge detection (64 Flipflops through software readable)
Fast and precise recording and processing of switching events
Simple assembly in a rack, as a standalone equipment in the laboratory area or as a mobile equipment for a notebook  More info...

                 
SEROPTO64INSER - - - 64 5V-30V - -
Seriell 64 Opto-In
Special Features: Input edge detection (64 Flipflops through software readable),IRQ on change of input signal
Fast and precise recording and processing of switching events
Simple assembly in a rack, as a standalone equipment in the laboratory area or as a mobile equipment for a notebook  More info...

                 
SEROPTO64OUTSER - - - 64 5V-30V - -
Seriell 64 Opto-Out
Special Features: Input edge detection (64 Flipflops through software readable),IRQ on change of input signal
Fast and precise recording and processing of switching events
Simple assembly in a rack, as a standalone equipment in the laboratory area or as a mobile equipment for a notebook  More info...

 
Ethernet  
 
    Relay Opto-Input Opto-Output
Bus Numbers Type Capacity / Power Number of Opto-In Voltage Number of Opto-Out Voltage
                 
ETHOPTOREL8Eth 8 switch-on 1A / 15W 8 5V-30V - -
Ethernet 8 Opto In + 8 Relay Card
Input edge detection ( 8 Flipflops through software readable ),
Timeout detection ( switches all outputs off if software hangs ),
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder,
Labview, Sun Java, Agilent VEE, LabWindows/CVI  More info...

                 
ETHOPTOREL8Eth 8 switch-on 1A / 15W 8 5V-30V - -
Ethernet 8 Opto In + 8 Relay Card
Input edge detection ( 8 Flipflops through software readable ),
Timeout detection ( switches all outputs off if software hangs ),
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder,
Labview, Sun Java, Agilent VEE, LabWindows/CVI  More info...

                 
ETHOPTOREL8_3AEth 8 switch-on 3A / 90W 8 5V-30V - -
Ethernet 8 Opto In + 8 Relay Card
Input edge detection ( 8 Flipflops through software readable ),
Timeout detection ( switches all outputs off if software hangs ),
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder,
Labview, Sun Java, Agilent VEE, LabWindows/CVI  More info...

                 
ETHOPTOREL8_3AEth 8 switch-on 3A / 90W 8 5V-30V - -
Ethernet 8 Opto In + 8 Relay Card
Input edge detection ( 8 Flipflops through software readable ),
Timeout detection ( switches all outputs off if software hangs ),
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder,
Labview, Sun Java, Agilent VEE, LabWindows/CVI  More info...

                 
ETHOPTOREL32ETH 32 switch-on 1A / 15W 32 5V-30V - -
Ethernet 32 Opto In + 32 Relay Card
Special Features: Input edge detection (32 Flipflops through software readable),
Timeout detection ( switches all outputs off if software hangs ),
Fast and precise recording and processing of switching events  More info...

                 
ETHOPTOREL32ETH 32 switch-on 1A / 15W 32 5V-30V - -
Ethernet 32 Opto In + 32 Relay Card
Special Features: Input edge detection (32 Flipflops through software readable),
Timeout detection ( switches all outputs off if software hangs ),
Fast and precise recording and processing of switching events  More info...

                 
ETHOPTO32IOEth - - - 32 5V-30V 32 5V-30V
Ethernet32 Opto In + 32 Opto Out including optical verification of operation
Timeout detection by switching off outputs
Identification of input change in states between two read instructions (flip-flop)
Simple assembly on top hat rails  More info...

                 
ETHOPTO32IOEth - - - 32 5V-30V 32 5V-30V
Ethernet32 Opto In + 32 Opto Out including optical verification of operation
Timeout detection by switching off outputs
Identification of input change in states between two read instructions (flip-flop)
Simple assembly of top hat rails  More info...

                 
ETHREL64Eth 64 switch-on 3A/90W
1A/15W
- - - -
Ethernet 64 Relay Card
Special Features: Timeout detection ( switches all outputs off if software hangs )
64 LED´s for optical function control of all output signals
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, HP VEE respectively Agilent Vee, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
ETHREL64Eth 64 switch-on 3A/90W
1A/15W
- - - -
Ethernet 64 Relay Card
Special Features: Timeout detection ( switches all outputs off if software hangs )
64 LED´s for optical function control of all output signals
Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, HP VEE respectively Agilent Vee, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel  More info...

                 
ETHOPTO64INETH - - - 64 5V-30V - -
Ethernet 64 Opto-In
Special Features: Input edge detection (64 Flipflops through software readable),IRQ on change of input signal
Fast and precise recording and processing of switching events
Simple assembly in a rack, as a standalone equipment in the laboratory area or as a mobile equipment for a notebook  More info...

                 
ETHOPTO64INETH - - - 64 5V-30V - -
Ethernet 64 Opto-In
Special Features: Input edge detection (64 Flipflops through software readable),IRQ on change of input signal
Fast and precise recording and processing of switching events
Simple assembly in a rack, as a standalone equipment in the laboratory area or as a mobile equipment for a notebook  More info...

                 
ETHOPTO64OUTETH - - - - - 64 5V-30V
Dieses USB-Modul mit 64 Optokopplerausgängen verfügt über eine integrierte Timeoutfunktion, die alle Ausgänge bei Eintritt eines Timeouts, z.B. einem Softwareabsturz abschaltet.  More info...


Description:

The inputs and outputs of a card are controlled by software.
If a relay is adressed a contact is either opened or closed. By that it is responsible to take into account, that the external current is not chosen to high, because in that case the switching contacts of the relay are overloaded. Every relay has two own connections, so that the switching between currents with different potentials and also the switching of alteranting voltage is possible.
In contrast to a relay, the controlling signal is light. Opto couplers can only switch DC circuits and record DC processes (opto inputs and outputs), but their special merits are high switching speed and a relatively wide voltage range (see technical data). All opto couplers have one common earthing. TTL conductions work bidirectional, they are inputs and outputs. Therefore, they can both record data and control external devices.


Usage:

Relay cards are very useful for the power switching. They are very flexible by choosing the used voltages and can also be used for currents higher than 1 A ore more. To switch surrent circuits on or off, which work with a alternating voltage of 25 V it is recommandable to use a 230 V card. With this card the 230 V are leaded direct to the PC. If this is not the result you can alternatively use a normal relay-, opto- coupler- or TTL- card, if you connect an extern relay with the corresponding current supply.
Opto coupler cards are used if a galvanical separation of circuits is needed or sensible (for example to avoid trouble when transmitting data over long dinstances). Without special drivers, they can only be used for low currents. The opto coupler card which records external switching processes fastest and most precisely is best suited.


Glossary:

Relays:
Relays are used as switches.
If a relay is connected by our cards, the switching contact is either opened or closed, so that a connected current circuit (with external power supply) is opened or closed. Please note, that the extern current must not be to big, otherwise the switching contacts of the relay is overloaded. There are two different types of relays. The switch-on relays close and the switch-over relays open or close one switching circuits each.

Opto coupler:
Switches depending on current which realize by their design a galvanical separation to the computer. Opto couplers switch very fast, but are restricted in the usability by a voltage range of 30 V direct current.

Galvanic separation:
'Galvanically separated' means that the separated components have no electrical conductions to each other. A galvanical separation to the computer guarantees that voltages of the module cannot break into the computer.

Common earthing:
All opto couplers are combined in 8 part groups. That means that 8 opto couplers have one common earthing. On reason for that is to avoid unnecessary sources of interference.