External Input And Outputs - Elatec TCP3 3.0.3.1 Technical Manual

3. Hardware Setup
additional minutes if there is no host network connection as the converter continually attempts to reach the
DHCP server.
There are 4 LEDs on the device and the operation mode of the device can be determined based on a
combination of LED signals. Here are a few of the possible states.
• Power LED displays Green when power supply is connected and orange if there is a power fault.
• Ready LED displays Green in normal operation. It will turn off during certain conditions described
later in this document.
• Busy LED displays Red when the device is initializing. It will blink during a software upgrade or when
the input button is pressed. It is off at other times.
• The Status LED displays Green when all conditions are normal. I will display red if there is a loss of
the host network and orange if it is not able to communicate with the printer.

3.6. External Input and Outputs

TCP3 is equipped with 2 optically isolated outputs and one optically isolated input. These can be used to
control copiers equipped with a 3 wire Foreign Device Interface. These signals are available via an 8 pin
ribbon cable connector on J7 as shown in Figure 3.2. The mating connector is a CviLux CI018SDOL1.
Prototyping cable are available from Elatec. The article number is CAB-J7.
The outputs are polarity insensitive and capable of sinking up to 75ma and provide 1,500V isolation The
input is polarity sensitive and requires a minimum of 1.6ma for recognition of an input while providing
5,000V isolation.
These outputs can be controlled via a web service response response to a card swipe. The API for this web
response is presented in the TCP3 Config folder of the AdminPack. Its file name is "card_service_to_server.json".
A hidden web page as shown in Figure 3.3 is available which can be used to for development purposes. A
link to this page is presented at the bottom of the System page as shown in Figure 6.9. In addition Foreign
Device Interface stub cables are available for prototype purposes. The Elatec part number for the cable
assembly is CAB-J7.
In an industrial setting, the authentication server can respond to the web service call with instructions to
enable or disable outputs or to time enable them. It can also monitor the input sensor line to gain status.
This could be used to enable a CNC machine for an authenticated user.
Figure 3.2.: External I/O Connector Pinout
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