For technicians looking to wire the unit, here is the standard pin-out logic: +24V DC (Red) and Ground (Black). Communication: A/B pair for RS-485 or WB/WA for IBIS.
Check the 24V fuse in the vehicle's electrical locker. The ICU 602 is sensitive to voltage drops during engine cranking. 5. Technical Specifications for Installation
The ICU (Intelligent Control Unit) 602 is the brain of the Mobitec sign system. It allows drivers to select route numbers and destinations via a physical keypad and a backlit LCD. Backlit Display: 2 lines of text for clear visibility. Tactile Keypad: Designed for use even with gloves. Interface: Connects via IBIS, RS-485, or RS-232 protocols. mobitec icu 602 user manual repack
Do not turn off the power until the screen displays "Update Successful." 4. Troubleshooting Common Errors If the unit isn't behaving, check these common fault codes:
The data file is corrupted. You need to re-format your USB and reload the destination files. For technicians looking to wire the unit, here
Some models require a 24V signal to the "Ignition" pin to wake from sleep mode.
The exterior signs will update instantly. Adjusting Brightness The ICU 602 is sensitive to voltage drops
Use the arrow keys (Up/Down) while on the home screen to manually override the sign brightness, though most ICU 602 units use an integrated light sensor for automatic dimming. 3. Advanced Settings & Programming
If you are "repacking" the software or updating the route list:
Navigate to Menu > Data Transfer > Load from USB .
© 2025 BD Results 24