Nokia NME-3 Series Installation Instructions Manual

Also see for NME-3 Series: Assembly instructions

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Nokia NME-3 Series Installation Instructions Manual Manual pdf 10 page image

PAMSTechnical DocumentationNME–3Installation InstructionsPage 10 Amendment 11 / 99When a relay is used, connect of series with the car radio main supply. A100 mA fuse should be used to protect the XCRM output in event of ashort circuit. Some radios have separate supplies for amplifiers and mo-tors, and another for memory backup purposes. Very often these radiosalso have a secret code system, which activates itself if a break in thememory supply is detected. Be careful when installing the relay not tobreak the memory supply (usually marked ACC or +MEM), but to installthe relay in the main supply feed.CARRADIO 12 V d.c.12 V d.c.Supply forcar radioFuse 100 mAnot supplied)To XCRM line(yellow wire) 858787A3086Figure 3. Connection – Radio MutingAnother possibility is to use a special muting unit (SR59), which mutes theradio by connecting load resistors to the speaker lines of the car radio.Four loudspeakers can be muted and the maximum permitted power is 20watts per channel. The muting unit can also be used as a relay to cut themain supply feed of the car radio.Ignition Sense (IGNS)The ignition sense feature prevents the transceiver from draining the carbattery by executing an auto power off 45 sec.– 24 houres after the igni-tion key has been turned off (unless the Auto Power Off feature is deacti-vated).The blue wire of the power cable is used for the ignition sense feature.The use of IGNITION SENSE is recommended to prevent accidentaldraining of the car’s battery. The wire is connected via a 1 A fuse to a 12volt potential that is controlled by the ignition key. Do not connect it directlyto the high voltage sections of the ignition circuit. If the feature is notused, just leave the wire unconnected, and protect the end of the cablewith insulating tape.

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