which creates a connection to the nodes in the external MOST con- · trol modules such as external amplifiers and/or CD changers

911 Turbo (996) PCM2/CDR23 91 which creates a connection to the nodes in the external MOST con- trol modules such as external amplifiers and/or CD changers (depending on the equipment). The gateway node represents the connection to CAN Comfort. MOST switch The MOST - switch - switch is part of the PCM2. It keeps the electri- cal MOST closed if no other MOST control unit is optically con- nected to the MOST. The MOST switch is opened when a light signal is received from the connected MOST control modules. The following settings can be coded: ♦MOST switch open. ♦MOST switch closed. Note! ♦When the PCM2 is replaced, the coding must be performed in accordance with the connected MOST control modules. ♦When the 'Switch closed' parameter is set, the switch remains closed even in existing MOST control modules. Communication is then not possible. Navigation The navigation module is designed as a module box, which can be inserted in the PCM2 as an option. After the insertion, an electronic switch is opened automatically and the module is integrated into the MOST ring. Ring break diagnosis line The diagnosis distribution line is an electrical lead, which, as a stub cable, connects the individual MOST control modules in the system with one another. The existing MOST control modules are checked at regular intervals during communication with the control modules via the electrical/optical MOST. Input signals The following queries can be run using this menu item: ♦Tuner parameters. ♦Registry startup status. ♦Internal ring startup status. ♦External ring startup status. 9101 Control module function - external BOSE amplifier 91-104 page 11 Printed in Germany – 43, 2003 SgfVBlwl