Kramer RC-308, Quick Start Manual, Page: 2 / 4

# Feature Function
8 RS-232 3-pin Terminal Block Connectors
(Rx, Tx, GND) Connect to RS-232 controlled devices (1 and 2, with common GND).
9 RS-485 3-pin Terminal Block Connector Connect to the RS-485 terminal block connector on another device or PC.
10 I/O 2-pinTerminal Block Connector (S, GND) Connect to a sensor or device to be controlled, for example, a motion sensor.
This port may be configured as a digital input, digital output, or analog input.
11 IR 2-pin Terminal Block Connectors
(Tx, GND)
Connect to an IR emitter cable (1 and 2, with common GND).
12 REL 2-pinTerminal Block Connectors Connect to a device to be controlled by relay. For example, a motorized
projection screen (1 and 2).
13 12V Power Supply 2-pin Terminal Block
Connector (+12V,GND)
Connect to the power supply. Connect GND to GND and 12V to 12V.
You can also power the unit via a PoE provider.
14 KNET 4-pin Terminal Block Connector Connect the GND pin to the Ground connection; pin B (-) and pin A (+) are
for RS-485, and the +12V pin is for powering the connected unit.
15 Factory Reset Button Press while connecting the power and then release to reset the device to its
default parameters.
To access this button, you need to remove the Button Faceplate.
16 Mini USB Type B Port Connect to your PC for firmware upgrade or for uploading the configuration.
To access the USB port, you need to remove the Button Faceplate.
17 IR Sensor For learning commands from an IR remote control transmitter.
18 Programing DIP-switch For internal use.
Step 3: Configure RC-308
To configure RC-308 buttons via K-Config :

Configure RC-308 (go to www.kramerav.com/product/K-Config ).

Connect RC-308 to a PC via the Ethernet or connect via the mini USB port.

Sync the configuration to the RC-308 .
To insert a button label:
When inserting a button label for the first time, start from #3 below. When replacing a button label, start from #1 below.
1. Using the supplied tweezers, grip the button via the left and right ledges.
2. Remove the button cap.
3. Cut out the appropriate button labels from the button label sheets and place a label over the button.
4. Cover with the button cap in the correct direction (with ledges left to right).
You do not have to detach the faceplate to remove
a button.