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Home >> Mercedes Benz >> 2012 >> GL350 >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Electrical System - Body - 164 Chassis - 3 Of 8 >> Basic Knowledge >> Universal Portable CTEL Interface (UPCI [UHI]) control unit, component description - GF82.70-P-5101GZ

Universal Portable CTEL Interface (UPCI [UHI]) control unit, component description - GF82.70-P-5101GZ

MODEL 164 with CODE (386) Preinstallation for telephone "Handy", UPCI system with CODE (388) Telephone "Handy", UPCI system with CODE (389) Mobile phone preinstallation with universal interface, USA/Canada except CODE (498) Japan version up to Model Year 2008 

Shown on model 164.1 

Fig 1: Identifying Universal Portable CTEL Interface Control Unit Component - Shown On Model 164.1
G10118247Courtesy of MERCEDES-BENZ USA

Location 

The UPCI control unit is located below the second row of seats on the left

Task 

The Universal Portable CTEL Interface (UPCI [UHI]) control unit functions as a communications management platform and converts electrical signals into optical signals for the Mediated Oriented System Transport (MOST) bus and vice versa. The UPCI [UHI] control unit is connected to the UPCI [UHI] portable CTEL holder (Universal Handy Interface) (A34/15) by a shielded wiring harness. This ensures the connection of the portable CTEL (A34/6) to the vehicle communication via the UPCI control unit.