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P

AGE 

10  

M

IDIAN  

E

LECTRONICS  

I

NCORPORATED

 

 

DDU-300 Manual Rev. 2006.02.22

 

ON 

Sound siren on emergency ANI. 

5.6.1.4  Internal Speaker setting 

Normally, the internal speaker is on and audio from 
the radio can be heard. If this is not desired, change 
this setting to OFF. The enabled beep features can still 
be heard however. If it is desired that absolutely no 
sound be heard from the console speaker, simply 
disconnect it. 

OFF 

Internal speaker disabled. 

ON 

Internal speaker enabled. 

5.6.1.5  Auto Mute Speaker feature 

This feature is designed to mute the internal speaker 
while an ANI is being received. It works in conjunction 
with the Auto Mute Time. When this feature is 
enabled, the internal speaker remains muted so long 
as there is no COR indication coming from the radio. 
When the COR indication goes active, the internal 
speaker will automatically unmute after the Auto Mute 
Time expires. Note: System sounds can still be heard 
during the mute period. 

OFF 

Do not mute the internal speaker. 

ON 

Mute/unmute speaker automatically. 

5.6.1.6  Auto Mute Time setting 

This is used in conjunction with the Auto Mute 
Speaker
 feature. This specifies how long the DDU 
internal speaker will remain muted after the COR input 
goes active. This value should be set to allow for any 
key-up delay of the transmitting unit as well as the 
time it takes for the ANI to complete. 

Range:  

0000 to 4000 milliseconds 

Default: 0600 milliseconds 

 

5.6.2  TIME SETUP menu 

In order for the correct time to be displayed, the time 
clock must be set. The unit must remain switched-on 
at all times in order to keep track of the time. The 
clock must be set each time the unit is powered up. 

5.6.2.1 Hour 

setting 

Set the hour of the day in 24-hour format. Enter two 
digits. 

Range: 

00-23 

Default: 

00 

5.6.2.2 Minute 

setting 

Set the minutes past the hour. Enter two digits. 

Range: 

00-59 

Default: 

00 

 

5.6.3  CONSOLE SETUP menu 

5.6.3.1  Data Entry Mode setting 

Determines if numeric entry or alphanumeric data 
entry is the default mode when selecting a record. The 
mode of entry can be toggled by pressing the <*> key 
during data entry (except when entering ANI's). 

NUMERIC 

Start in numeric only mode. 

ALPHA 

Start entry in alphanumeric mode. 

5.6.3.2  Ignore Nonuser option 

Turning on this option helps prevent the display of 
false decodes by ignoring ID’s which do not appear in 
the user database. This can also be used to restrict 
access to a repeater to only those ID’s in the database. 
 See REPEATER SETUP for more information. 

OFF 

Display ID’s not in database. 

ON 

Ignore ID’s not in database. 

5.6.3.3  Fast Scrolling setting 

Fast Scrolling allows for faster navigation through the 
menu system. The DDU can also animate the scrolling 
of the screen from side-to-side. This provides positive 
feedback in response to scrolling through menus and 
the ANI log. If this effect is desired, Fast Scrolling can 
be disabled.  

OFF 

Animate scrolling from side to side. 

ON 

Scroll at fast speed. 

5.6.3.4 Contrast 

setting 

Allows the display contrast to be adjusted for best 
viewing. 

LOW 

Low contrast setting. 

HIGH 

High contrast setting. 

5.6.3.5  Mic. Option setting 

Selects which type of optional microphone accessory 
is attached to the DDU. This is necessary so that the 
DDU knows how to treat the external signals. 

NONE 

No microphone. 

GOOSENECK  Gooseneck style microphone. 

PADDLE 

Paddle style desktop microphone. 

HANDSET 

External handset. 

5.6.3.6 Printer 

Option 

The DDU, if ordered with the printer cable option, can 
log the ANI traffic to a serial printer. The printer must 
have a print buffer and a standard RS-232 port. It must 
be configured for 9600 baud, 8 data bits, 1 stop bit and 
no parity. In order to send data to the printer, this 

Summary of Contents for DDU-300

Page 1: ...N MANUAL Model Features 10 entry ANI recall memory 137 entry alias database Auto mute leading ANI Alternate function as a repeater access controller Decodes Midian s TVS 2 Kryptic 4 digit ANI s 11 sta...

Page 2: ...version of software such request must be specified in writing and there will be a charge agreed upon by both parties This product is warranted to meet published specifications and to operate as specif...

Page 3: ...2 JUMPER SETTINGS 5 3 3 ADJUSTMENTS 5 3 4 CONFIGURATION SETTINGS 5 4 BASIC OPERATION 5 4 1 DISPLAY MODE 5 4 2 MENU MODE 6 4 3 USER DATABASE 7 4 4 MISCELLANEOUS FEATURES 7 5 MENU SYSTEM 8 5 1 CALL COMM...

Page 4: ...n the squelch output to the radio is asserted AUDIO OUTPUT TX OUT P1 4 Green Connect to the mic hi input of the radio The output impedance of the DDU can be adjusted if necessary by replacing leaded r...

Page 5: ...g down the SEND key Speak loudly into the microphone at a normal distance Adjust R105 such that maximum system modulation is achieved at peak voice SPEAKER PRE AMP Though the DDU has a volume control...

Page 6: ...mode with the last ANI received being shown MONITOR This button always controls the monitor function of the radio Press MONITOR to toggle the state of the monitor output to the radio SEND Activates t...

Page 7: ...ven when switched off 4 3 2 Setting Up the User Database Begin by compiling a list of names and ID numbers Give some thought on how you are going to abbreviate the names since only 14 characters per n...

Page 8: ...t or units You will be given the option to enter the 4 digit numeric ID of the unit you wish to call If the user database is set up you may use the right SCROLL buttons to go into Select Mode and find...

Page 9: ...you change your mind 5 5 ADMIN MENU 5 5 1 Set Key 1 setting Allows you to modify security key code 1 The key is sent when one of the Prog Key s command is issued All 8 digits must be entered Range 8 d...

Page 10: ...ts Range 00 23 Default 00 5 6 2 2 Minute setting Set the minutes past the hour Enter two digits Range 00 59 Default 00 5 6 3 CONSOLE SETUP menu 5 6 3 1 Data Entry Mode setting Determines if numeric en...

Page 11: ...ting on a busy channel If this option is ON the unit will not transmit when the COR input is in the active state The DDU will wait until the channel is clear and then transmit When this option is OFF...

Page 12: ...is a status message for each of the digits 0 through 9 These correspond to the first digit of a status location packet sent by the TVS 2 Emergency packets always begin with the digit 9 and thus status...

Page 13: ...ory default settings The contents of the user database will not be affected 5 6 8 2 Clear Database This will clear the user database of all ID s and User Names The contents of the other parameters lis...

Page 14: ...SUM ERR Reason The configuration settings stored in EEPROM have been corrupted This can happen if power is lost at the exact time a parameter is being updated All configuration settings will be set ba...

Page 15: ...MIDIAN ELECTRONICS INCORPORATED PAGE 15 DDU 300 Manual Rev 2006 02 22 7 MENU SYSTEM MAP...

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