The JNIOR is shipped with the following items:

 JNIOR – one of the following models with the main difference being the I/O mix

JNIOR Model Catalog Number I/O
 410  JNR-100-004B 8 inputs 8 outputs
 412  JNR-200-004B 4 inputs 12 outputs
 414  JNR-300-004B 12 inputs 4 outputs
 412 DMX  JNR-200-004D 4 inputs 12 outputs


Connector Kit – 5-Piece

Connection Type Quantity
Power 4 Pin terminal connector 1
Digital Inputs 8 Pin terminal connector 2
Relay Outputs Connector 8 Pin terminal connector 2


Power Adapter (optional) – includes 4 pin terminal connector already attached

JNIOR Support Documentation:

Available on our website at http://www.integpg.com/support/

  • JNIOR Support Tool – PC Software for configuring your JNIOR IP settings and updates
  • Documentation – User Manuals, Technical Manuals and Drawings
  • JNIOR Software Development Kit (SDK) and Sample Software
  • Miscellaneous Tools



JNIOR, a Network I/O Resource utilizing the JAVA™ platform, is a cost effective automation controller that communicates over a network using TCP/IP via an Ethernet Port or via its serial port. The JNIOR is a general-purpose automation controller and I/O device that is easily configurable for control and monitoring of your equipment or process via the built-in web pages, by enabling the built-in software applications, interaction with an application running on another computer, or by adding your own applications.

The TCP/IP connectivity allows the JNIOR to be easily connected with other computers over an Ethernet network or the Internet using the JNIOR protocol, web sockets, TCP, Modbus, SNMP, MQTT, and others. Custom protocols can also be added.

The JNIOR Series 4 contains a modern web server to host its own dynamic web pages using web sockets and HTML5 code or custom web pages developed by INTEG or the end user.

The JNIOR contains File Transfer Protocol (FTP) and Telnet servers, for transferring data files, loading software, system configuration, and maintenance.

The JNIOR is also an e-mail client capable of sending e-mails, with attachments, based on alarms or system events.

The JNIOR Series 4 can make ‘secure’ web and other connections.

The JNIOR contains a mix of digital inputs and relay outputs, and can be expanded with plug and play analog expansion modules (4 – 20 mA, +/- 10 VDC), 4 Relay Output expansion modules (for high voltages), LED Dimmer module, User Control Panel and/or digital temperature and humidity sensors.

For custom applications, a Java Virtual Machine (JVM) is also available on the JNIOR for implementing application programs written in Java. Please contact INTEG Process Group for more details.

Uses for the JNIOR include:

  • Cinema automation
  • Lighting and presentation control
  • Remote monitoring and control of equipment
  • Utility usage monitoring and reporting
  • Data acquisition and logging
  • Serial-to-Ethernet interface
  • Interface with legacy systems
  • Linking I/O to existing operator interfaces
  • E-mail alert



The JNIOR uses a 2-piece terminal connector system for all power and I/O wiring connections allowing for easy installation and/or removal of the JNIOR. The connection details are described in section 6 of this manual. Additional installation information and drawings are provided on our website.

The JNIOR can be powered with 12 to 24 volts AC or DC. An optional, wall transformer (AC power converter) for North American outlets is available from INTEG that can be used for converting 120/240 VAC to 12 VDC @ 1 amp. An international model is also available with the Euro plug. Other plug types are also available.

The Power Connector is located along the upper left edge of the JNIOR. Note that this is a 4-pin connector. If numbered from one (1) through four (4) from left to right power is always connected to positions 2 and 3 (middle two connectors). The polarity is irrelevant although it is recommended that the positive (+) lead be connected to position 2.

The left two positions (1 & 2) are internally connected together, as are the right two positions (3 & 4). This is to facilitate the interconnection of the supplied power to other devices and circuits such as input or output devices. If you power the I/O circuits with your JNIOR power supply, please make sure the power supply is sized appropriately.

WARNING: Do not connect the transformer leads both to Positions 1 & 2 or both to positions 3 & 4. This will short the transformer and possibly damage it and/or the JNIOR. Always use a fused/protected power source.

When a proper power source is connected and turned on the leftmost LED adjacent to the power connector will glow BLUE continuously. The LED to the right may glow ORANGE for several seconds. This orange STATUS LED remains on through most of the JNIOR boot sequence. Later it will flash whenever an external connection is made to the JNIOR via the Ethernet port.



Starting with JANOS 2.0, the JNIOR is shipped with DHCP enabled for dynamic setting of the JNIOR IP address by a network server.

If DHCP does not work on your network, then there are two ways to configure your JNIOR IP settings:

Configuration Using the JNIOR Support Tool


The easiest way to configure your JNIOR is via the JNIOR Support Tool and the JNIOR Beacon functionality. Beacon is built into every JNIOR Series 4. The JNIOR Support Tool is available on our website. The JNIOR Support Tool Manual is installed on your PC under Start – Programs – INTEG – Support Tool.

Simply install the JNIOR Support Tool and then connect an Ethernet cable to your JNIOR and power-up the JNIOR. The JNIOR Support Tool will automatically detect the JNIOR (as long as the JNIOR is on the same local Ethernet network) when the JNIOR completes its boot. Or you can right click in the Beacon Tab and select Query New or Query All. The Manage IP List feature allows you to manually enter JNIOR IP addresses so they can be found across a VPN, routers, etc. Please see the JNIOR Support Tool Manual for additional details on how to use the other features of the JNIOR Support Tool. You may need to adjust your Firewall settings for Beacon to work.

By “right clicking” on your JNIOR listed in the window, you can display the Configuration pop-up as shown below. At a minimum, you need to type in your desired JNIOR IP Address and click OK. You should then be able to interact with your JNIOR via your Ethernet network.

Configuration Using a Serial Connection from Your PC


The alternate way to configure your JNIOR is via the RS-232 port located along the bottom edge of the JNIOR. The lower RS-232 port is the JNIOR command console port and is a DB-9 connector that utilizes a standard, straight-through, serial cable. You will need to use a USB to DB-9 serial cable to work with your computer.

You will need to communicate with the JNIOR using a Command Line window that is available from the JNIOR Support Tool. Go to the top of the support tool and select Tools – Open Command Line as shown below.

Your COM properties should be set for 115200 baud, 8 bits, no parity, 1 stop bit, and no handshaking (flow control) and appear as shown below (these are the default settings for the RS-232 port):

If you power-up your JNIOR after you have connected your serial cable to the JNIOR and opened a command line session, you will see the boot dialog. If you powered-up your JNIOR before you have opened a command line session, you will not see the Boot dialog. In either case, the JNIOR is ready to accept a login. You may need to hit the ENTER key to obtain the login prompt.   

Enter a username for the JNIOR (default is “jnior”) and enter a password for the JNIOR (default is “jnior”). If you are successful, your screen should look similar to the following:


You will use the ipconfig command to configure the JNIOR Ethernet port for your required static (fixed) IP Address. The ipconfig command has several options associated with it and they can be viewed by typing, help ipconfig at the command line prompt. The options are shown below:

In order to properly configure your JNIOR network settings using ipconfig, use the command shown below. You must enter, at a minimum, your IP address and a mask:

ipconfig -a IP -m MASK

where:        IP = desired IP address       MASK = IP mask

On a private network, the IP address may be something like A common mask would be The command would then look as follows:

ipconfig -a -m

Other settings, such as a gateway, primary and secondary domain name servers, and a mail host, may or may not be needed.

The gateway often, although not always, is the .1 of the IP address. In the above example it would be It allows the JNIOR to get to another segment of the Ethernet network.

The primary and secondary domain name servers (DNS) provide resolution for the aliases that are used for the IP addresses of other devices on the network and for e-mail addresses. If other devices are referred to by their IP address only and not by name or the JNIOR e-mail feature is not being used, then neither DNS server has to be setup.

The JNIOR Series 4 email system requires a Mail Host. Please see the Email Application Note for additional details on how to configure the JNIOR Series 4 to send email.

Typing in the above command will result in the following. Your IP settings can be checked by simply typing the ipconfig command at the command line and pressing <enter>:


While you are logged into the JNIOR, you can also set your date and time. The JNIOR date and time are set during the factory build to GMT (also now referred to as MIT). The JNIOR has a real time clock that is battery backed so you may just have to set your time zone. The GMT time should be approximately correct.

If the JNIOR is connected to the Ethernet, the time can automatically be synced via the JNIOR Network Time Protocol (NTP). The default website the JNIOR checks is clock.isc.org. However, for this NTP server to work, you will need to set a DNS and possibly a gateway address.

You can change the NTP Server registry key to the IP address of any server/computer on the network that will respond to an NTP request or you can use any domain name that will provide the NTP functionality.

You can set your JNIOR date and time using the date command. Typing help date will provide you with the command format.

When finished with your Command Line session, type logout or bye on the command line to end your session and then close the Command Line window.

For more information concerning additional commands available to the user through a command line or a Telnet session, please see the Command Line Communications Manual on our website.

JNIOR Web Page


The JNIOR Series 4 contains the JNIOR web page which is a web page used for a variety of functions including monitoring and manually controlling the I/O, changing various configuration items, opening a Telnet/Console session and several other functions. The JNIOR web page works with Microsoft Internet Explorer, Google Chrome, Fire Fox and other browsers.

PLEASE NOTE: The dynamic web page requires a ‘modern web browser’ which is defined as Internet Explorer 10 or greater, Google Chrome or Firefox.

You can launch the JNIOR web page from the Beacon tab in the JNIOR Support Tool by right-clicking on your JNIOR and going to Tools – Open web page or by manually entering the JNIOR IP address in your browser address line. To manually launch the JNIOR web page, open your browser and in the address line of the browser type your JNIOR IP address or serial number, for example: or jr616010235

After the JNIOR web page is loaded, the user is asked to login with a valid username and password. You can use the default username (jnior) and default password (jnior).

The JNIOR web page will be launched in your browser as shown below.



The JNIOR Series 4 contains a 32-bit microprocessor, 32 MB FLASH memory, 32 MB dynamic RAM, 2 MB battery-backed static RAM memory, and the JNIOR operating system (JANOS) with an integral Java Virtual Machine (JVM).

JNIOR’s circuit board resides in a protective case with an integral low voltage power supply and a variety of general-purpose I/O points. External communications are handled via the Ethernet port, Auxiliary Serial Port and RS232 Serial Port.

The JNIOR Series 4 specifications are provided in the following tables:

 Power Input  
 Input Voltage 12 to 24 Volts DC or AC, < 400 mA typical


 Digital Inputs  
 Range 0 – 30 Volts AC/DC
 Logic Low Input 0 – 1 Volt
 Logic High Input 2 – 30 Volts
 Input Resistance 1.2 K ohm nominal
 Response Time 1 millisecond
 Counter capability 2000 Hz Max (each input)
 Isolation Optically Isolated
 Functions Latching capability – as fast as 1 millisecond


 Relay Outputs  
 Type SPST, Form A – 1 Normally Open Contact (Two relays are Form C and configurable as Normally Open or Normally Closed to the terminals)
 Contact Ratings 1 Amp @ 24 AC/DC
 Pulse Resolution 1 millisecond per increments


 Aux Serial Port  
 Communication Default Settings Configurable based on application 115,200 BPS, 8 Data bits, No parity, 1 stop bit, No Flow Control
 Connector DB-9 Female


 Connection RJ-45 Connection
 Speed 10/100 Mb Auto-Negotiated, Full Duplex


 Sensor Port RJ-12 Connection for Expansion Modules


 Certification TUV Safety Mark (60950), CE, FCC Class A


The following diagram provides the user with the pin-outs of the digital inputs and digital outputs for the JNIOR Model 410. Please contact INTEG Process Group for additional assistance.

Digital Inputs

The JNIOR is equipped with optically isolated digital inputs.Each digital input can accept AC or DC voltage sources in the 0 – 30 V range. An LED associated with each digital input displays the current electrical status of the input (off or on). Isolation of each digital input allows you to connect input signals to different voltage sources without the addition of isolation devices. The input voltage must be greater than 2 VDC for the input to register as “on” and then less than 1 VDC to register as “off”. A typical connection would be as follows:


Relay Outputs

The JNIOR is equipped with Relay Outputs with most of them being a Form A SPST relay (1 Normally Open Contact) and two of them being a Form C SPST relay (1 Normally Open Contact and 1 Normally Closed Contact – jumper selectable as to which one is available on the JNIOR terminals by removing the lid and changing the jumper setting. Normally Open is the default.) Each relay output is independent and isolated from the other relay output. Each relay contact rating is 1A @ 24VDC and the voltage source must be in the range of 5 – 30V AC or DC. A typical connection would be configured as follows: