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Home >> Mercedes Benz >> 2012 >> S550 Base >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Electrical System - Body - 221 Chassis - 02 Of 10 >> Basic Knowledge >> Telephone/portable CTEL/STH radio remote control antenna splitter component description - GF82.70-P-5201SX

Telephone/portable CTEL/STH radio remote control antenna splitter component description - GF82.70-P-5201SX

MODEL 221 with CODE (228) Stationary heater with CODE (386) Preinstallation for telephone "Handy", UPCI system with CODE (388) Telephone "Handy", UPCI system with CODE (856) 2nd handset in rear armrest except CODE (494) USA version except CODE (498) Japan version up to Model Year 08 

Fig 1: Identifying Telephone/Portable CTEL/STH Radio Remote Control Antenna Splitter
G10112280Courtesy of MERCEDES-BENZ USA

Location 

The telephone/portable CTEL/STH radio remote control antenna splitter is installed in the rear of the trunk on the left-hand side.

Task 

The antenna splitter has the task of relaying the telephone signals coming from the telephone antenna (A2/49a1) and the signals from the STH radio remote control transmitter (A8/3) to the STH radio remote control receiver (A6/1) and the E-net compensator (A28/3).