Installation Manual - Indium Controller

Discontinued product

The Indium has been discontinued and is no longer sold for new projects. This documentation remains available to support existing installations. For new projects or replacements, contact the Iongrade sales team.

This manual guides the designer or installer through the physical installation and electrical connections of the Indium access controller.

Power Supply

The controller must be powered with 12 VDC ±5%. Consumption, without readers and additional modules, is 120 mA.

Specification	Value
Supply voltage	12 VDC ±5%
Consumption (no peripherals)	120 mA

Important

Use a regulated power supply sized to support the controller and all connected peripherals (readers, locks, etc.).

Card Reader Connections

The Indium controller has interfaces for two readers of the ABATrack or Wiegand type. The terminals where the readers must be connected are identified on the printed circuit board.

Reader Voltage Selection

There is a jumper for selecting the reader supply voltage, with options of 5VDC or 12VDC.

Jumper	Function	Options
JP1	Reader voltage selection	5VDC or 12VDC

Tip

The positions of each voltage option (12V or 5V) are identified on the printed circuit board, next to the jumper.

Sensor and Command Button Connections

The signal inputs must be used for:

• REX (Request to Exit): command buttons
• DOOR SWITCH: door state sensors
• PAS SWITCH: turnstile rotation sensors

Inputs per Channel

Terminal	Function
PAS/DOOR 1	Passage/door sensor - Channel 1
REX 1	Exit button - Channel 1
PAS/DOOR 2	Passage/door sensor - Channel 2
REX 2	Exit button - Channel 2

Important

The sensors connected to these inputs must be of the dry contact type, potential-free.

Command Relay Connections

The controller has four command relays with the following capacities:

Specification	Value
AC load	1A / 120VAC
DC load	2A / 30VDC

Warning

Observe these limits to ensure the integrity and service life of the relay contacts.

Relay Function

The LOCK 1 or LOCK 2 relays are triggered when the controller grants access; the ALRM 1 or ALRM 2 relays are triggered when an access request is denied. The trigger time settings are made during the controller configuration stage.

Relay	Channel	Function
LOCK 1	Channel 1	Triggered when access is granted
ALRM 1	Channel 1	Triggered when access is denied
LOCK 2	Channel 2	Triggered when access is granted
ALRM 2	Channel 2	Triggered when access is denied

Serial Ports (UARTs)

The controller has two serial communication ports. The UART1 and UART2 ports are available for connecting various configurable communication devices.

They operate on the RS232 electrical standard and can supply 5VDC to power the connected device, such as scanners.

Serial Connector Pinout (UART1 and UART2)

Pin	Signal
1	+5 VDC
2	TX
3	RX
4	GND

LCD Display

The controller is prepared for the connection of a display module (LCD) with I2C communication. The electrical level of the signals is TTL at 5VDC.

Display Connector Pinout

Pin	Signal
1	GND
2	+5VDC
3	SCL
4	SDA

Buttons and Indicators

The controller has two buttons that allow you to force a reset (boot) or switch it to configuration mode, and it has an LED that shows the device's communication status.

RESET button — forces the controller to restart (boot). Press it quickly to exit configuration mode.

MODE button — switches the controller to configuration mode. Press and hold for 5 seconds.

STATUS LED — provides information about the overall communication status.

Reading the STATUS LED

When the controller is in operation mode, the STATUS LED provides information about the overall communication status. Every two seconds, a series of up to four quick blinks begins:

Blink	Meaning
1	Controller in operation mode
2	Network connection (Ethernet/WiFi) OK
3	Connection to the system Broker OK
4	Communication with the server OK

Diagnostics

When four blinks are counted in each cycle, everything is normal. This check greatly helps during installation and maintenance to locate communication failures.

Starting the Configuration

The Indium controller is configured through a browser. To start the configuration, follow the steps below.

1. Activate Configuration Mode

1. Press and hold the MODE button for 5 seconds.
2. The controller automatically starts in Configuration mode.
3. The STATUS LED keeps blinking rapidly, indicating that the mode is active.
4. The controller activates a WiFi access point (AP mode) and starts accepting client connections.

2. Connect to the Controller's WiFi Network

The WiFi network created by the controller has a unique name (SSID) for each controller:

• Format: indium + identification code
• Examples: indium7512208F, indium89C0CF6A

3. Access the Configuration Interface

1. Connect to the controller's WiFi network.

2. Open the browser and go to: http://192.168.4.1

3. Enter the default credentials:

   • User: admin
   • Password: indiumpwd

Installation Recommendations

1. Location: install the controller in a place protected from the weather.
2. Ventilation: ensure adequate ventilation for heat dissipation.
3. Grounding: connect the grounding system properly.
4. Cabling: use shielded cables for readers in environments with interference.
5. Protection: consider using surge protectors on the power supply.