After Sales
Technical Documentation
RAE/RAK–1N
CARK60 Installation Guide
Page 10
Original, 08/96
Car Radio Muting CRM
The Communicator offers a feature that can mute the car radio
automatically during a conversation. This feature is convenient and
provides for safer hands–free operation. The Car Radio Muting feature is
based on a grounded line, so it means that in standby, the yellow wire
(XCRM) is not grounded and car radio works normally, but during a call,
line is grounded and car radio is muted. The maximum load that this line
can handle is 250 mA. Note that an auxiliary relay or muting unit must be
used when the car radio doesn’t have a mute feature available.
When a relay is used this should be connected in series with the car radio
main supply. A 200 mA fuse should be used to protect the XCRM output in
event of a short circuit. Some radios have separate supplies for amplifiers
and motors, and another for memory backup purposes. Very often these
radios also have a secret code system, which activates itself if a break in
the memory supply is detected. Be careful when installing the relay not to
break the memory supply (usually marked ACC or +MEM), but to install
the relay in the main supply feed.
CAR
RADIO
Bosch P/N 0–332–204–150
12 V, 30 A. SPDT
12 V d.c.
12 V d.c.
Supply for
car radio
Fuse 200 mA
(not supplied)
To XCRM line
(yellow wire)
85
87
87A
30
86
GND
Figure 4.
Radio Muting Circuit
Another possibility is to use a special muting unit, which mutes the radio
by connecting load resistors to the speaker lines of the car radio. Four
loudspeakers can be muted and the maximum permitted power is 20
watts per channel. The muting unit can also be used as a relay to cut the
main supply feed of the car radio.
Ignition Sense IGNS
The Ignition Sense feature prevents your Communicator from draining the
car battery by executing an auto power off in 20 seconds after the ignition
key has been turned off. The blue wire of the power cable is used for the
ignition sense feature. The use of ignition sense is recommended to
prevent accidental draining of the car’s battery. The wire is connected via
a 200 mA fuse to a 12/24 volt potential that is controlled by the ignition
key. Do not connect it directly to the high voltage sections of the ignition
circuit.
All installations should take into account any special requirements of the
customer. However, should the customer require an installation that is
illegal or unsafe, these facts must be pointed out to the customer and a
policy of non–compliance adopted.
Summary of Contents for 9000i
Page 7: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Chapter 1 Overview ...
Page 287: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Chapter 9 Service Tools ...
Page 301: ...After Sales Technical Documentation RAE 1N Series Original 04 97 Chapter 10 Schematics ...
Page 303: ...RAE 1N Original 08 96 10 11 Page 1 Figure 1 Component Layout Bottom ...
Page 304: ...RAE 1N Original 08 96 10 12 Page Figure 2 Component Layout Top ...
Page 305: ...RAE 1N Original 08 96 10 13 Page Figure 3 Baseband Circuit Diagram PWRU ...
Page 306: ...RAE 1N Original 08 96 10 14 Page Figure 4 Baseband Circuit Diagram MCM1 ...
Page 307: ...RAE 1N Original 08 96 10 15 Page Figure 5 Baseband Circuit Diagram MCM2 ...
Page 308: ...RAE 1N Original 08 96 10 16 Page Figure 6 RF TX Circuit Diagram ...
Page 309: ...RAE 1N Original 08 96 10 17 Page Figure 7 RF RX Circuit Diagram ...
Page 310: ...RAK 1N 10 20 Page Amendment 1 04 97 Figure 18 PCN Component Layout Bottom ...
Page 311: ...RAK 1N 10 21 Page Amendment 1 04 97 Figure 19 PCN Component Layout Top ...
Page 312: ...RAK 1N 10 22 Page Amendment 1 04 97 Figure 20 PCN RF TX ...
Page 313: ...RAK 1N 10 23 Page Amendment 1 04 97 Figure 21 PCN RF RX ...
Page 314: ...RAK 1N 10 24 Page Amendment 1 04 97 Figure 22 UIF Schematic PCN ...
Page 315: ...RAK 1N 10 25 Page Amendment 1 04 97 Figure 23 UIF Component Layout PCN ...
Page 316: ...RAE 1N Original 05 97 10 3 Page Figure 1 PDA Block Diagram Edit 82 for layout 13a ...
Page 317: ...RAE 1N Original 05 97 10 4 Page Figure 2 PDA Power Unit PWRU Edit 108 for layout 13a ...
Page 318: ...RAE 1N Original 05 97 10 5 Page Figure 3 PDA Serial Interface SIRU Edit 24 for layout 13a ...
Page 319: ...RAE 1N Original 05 97 10 6 Page Figure 4 PDA MCU and Memory PROCU Edit 121 for layout 13a ...
Page 320: ...RAE 1N Original 05 97 10 7 Page Figure 5 PDA EMIU Edit 21 for layout 13a ...
Page 321: ...RAE 1N Original 05 97 10 8 Page Figure 6 Keyboard matrix Edit 24 for layout 13a ...
Page 322: ...RAE 1N Original 05 97 10 9 Page Figure 7 PDA Memory Edit 28 for layout 13a ...
Page 323: ...RAE 1N Original 05 97 10 10 Page Figure 8 PDA Component Layout 13a ...
Page 324: ...RAE 1N Original 08 96 10 18 Page Figure 1 UIF Schematic ...
Page 325: ...RAE 1N Original 08 96 10 19 Page Figure 2 Component Layout Uif ...
Page 326: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Accessories ...
Page 352: ...After Sales Technical Documentation Appendix 2 RAE RAK 1N Amendment 1 04 97 PARTS LISTS ...
Page 402: ...After Sales Technical Documentation Appendix 1 RAE RAK 1N Original 08 96 QUICK GUIDE ...
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