Midian DDU-100, DDU-200 Instruction Manual
DDU-100
Local Remote Controller with DTMF Encode & ANI Decode
DDU-200
Local Remote Controller with 5-Tone Encode & ANI Decode
INSTRUCTION MANUAL
Model Features
10 entry ANI recall memory
137 entry alias database
Auto-mute leading ANI
Alternate function as a repeater access controller
MANUAL REVISION: 2013-07-22
COVERS PRODUCT SOFTWARE VERSION(S):
1.1 _____ _____ _____ _____
WITH EN
1.7 _____ _____ _____ _____
CODER/DECODER VERSION(S):
Programmable encode/decode format
Supports DTMF and several 5-tone formats
Easy to read backlit LCD display
Serial printer logging (w/optional cable)
COPYRIGHT 2001-2004 MIDIAN ELECTRONICS INC. ALL RIGHTS RESERVED.
MIDIAN ELECTRONICS, INC.
To Order: 1-800-MIDIANS
DDU-100/200
2030 N. Forbes Blvd. #101
Telephone: (520) 884-7981
Tucson, Arizona 85745
Email: sales@midians.com
1 SPECIFICATIONS
Voltage/Current
Operating Voltage (nominal) ................................. 12 VDC
Operating Voltage (min-max) ........................... 12-15 VDC
Operating Current (standby @12 VDC) ................. 100 mA
Operating Current (peak @15 VDC) ...................... 500 mA
Inputs
Input Level (RX) ..................................... 100-3000 mV p-p
Input Impedance (RX) ............................................. > 10k
Outputs
Output Level (TX, unloaded) .................. 150-2500 mV p-p
Output Impedance (TX) ........................ 27k with JU4 cut
Speaker Audio Output ..................................... 1 W into 8
Mechanical
Dimensions: ..................................... .2⅞"H x 6½W x 8¾"L
Operating Temp ................................................ 0° to 50° C
Encode/Decode Formats
DTMF, CCIR, EEA, EIA, ZVEI, DZVEI, DDZVEI, NATEL,
and MODAT.
Other
Max ANI Length ..................................................... .8 digits
ANI Recall Stack Size .................................................. .10
Alias Database Size ................................................... .137
DDU-100/200 Manual
MIDIAN ELECTRONICS INCORPORATED PAGE 3
TABLE OF CONTENTS
1 SPECIFICATIONS ........................................................................................................................... 2
2 OVERVIEW ................................................................................................................................ 4
3 INSTALLATION INSTRUCTIONS .............................................................................................. 4
3.1 RADIO INTERFACE................................................................................................................................. 4
3.2 JUMPER SETTINGS ................................................................................................................................ 5
3.3 ADJUSTMENTS ...................................................................................................................................... 5
3.4 CONFIGURATION SETTINGS ................................................................................................................... 5
4 BASIC
4.1 DISPLAY MODE ..................................................................................................................................... 5
4.2 MENU MODE ......................................................................................................................................... 6
4.3 USER DATABASE .................................................................................................................................. 7
4.4 STATUS DISPLAY FEATURE ................................................................................................................... 8
OPERATION .................................................................................................................. 5
5 MENU SYSTEM .......................................................................................................................... 8
5.1 CALL COMMAND ................................................................................................................................... 8
5.2 LOCK OR UNLOCK COMMAND ............................................................................................................. 8
5.3 ACTIONS MENU................................................................................................................................... 8
5.4 USERS MENU ...................................................................................................................................... 8
5.5 SETUP MENU....................................................................................................................................... 9
6 SYSTEM ERROR MESSAGES ................................................................................................ 14
7 MENU SYSTEM MAP ............................................................................................................... 15
DDU-100/200 Manual
PAGE 4 MIDIAN ELECTRONICS INCORPORATED
impedance of the DDU can be adjusted if necessary by
2 OVERVIEW
The DDU provides the optimal ANI display decoder
solution for small and medium sized radio systems
such as those used by taxi fleets, police departments,
construction crews, etc. It offers many features
normally found only in large and expensive Computer
Aided Dispatch (CAD) systems in one compact
desktop unit.
It can encode and decode most popular tone signaling
formats. The last 10 ANI's received can be reviewed at
any time. It can store up to 137 aliases in its user
database. The user friendly menu system makes it as
easy to use as a cell phone. Additional features include
status display and the ability to automatically mute
incoming leading ANI's
replacing leaded resistor R81 with an appropriate
value.
PTT OUTPUT (P1-3) [Yellow]
This open collector output provides a ground to key-up
the radio when transmitting. If connecting to a relay in
the radio, make sure the coil is bypassed with a diode
to eliminate counter-EMF.
This output may also be assigned to be the repeater
access control output. See REPEATER SETUP for
more information.
COR INPUT (P1-1) [Gray]
3 INSTALLATION INSTRUCTIONS
Installation Note: Midian products utilize CMOS integrated
circuits, which are susceptible to damage from high static
charges. Be sure to follow standard antistatic procedures
when handling, including using grounded workstations and
soldering irons and wearing grounding bracelets.
3.1 RADIO INTERFACE
Radio Interface connector P1 is an 8-pin
RJ-45 style connector in the center of the
back panel.
+V IN (P1-5) [Red]
The DDU can be powered either by an optional wall
transformer or by the radio power supply. Connect this
wire to the radio power source provided it is between
12 and 15 VDC.
If using a wall transformer, make sure the voltage is
between 12 and 15 VDC and the current rating is at
least 800mA. Also, be certain that positive is
connected to the inside ring.
GROUND (P1-6) [Black]
Connect to radio ground.
AUDIO INPUT/RX IN (P1-8) [Blue]
Connect to a point in the radio where receive audio is
present at a constant level. If using PL or CTCSS, be
sure to connect to a point after the CTCSS high pass
filter. If using the Squelch Output of the DDU, be sure
the RX audio point is not muted when the radio is
squelched.
AUDIO OUTPUT/TX OUT (P1-4) [Green]
Connect to the mic-hi input of the radio. The output
Connect to a point in the radio squelch or CTCSS
circuit that changes logic level when carrier (or
CTCSS) is detected. A radio whose circuitry provides a
logic-low or logic-high can readily turn Q1 on and off. If
only a high level is provided, it may be necessary to
move R40 from its pull-up to its pull-down position.
Note that it is required that the COR Input be in the
active state in order to decode all formats except
DTMF. If COR is not to be connected, make sure it is
programmed to be active HIGH. A COR connection is
required in order to use busy lockout, auto ANI mute,
and repeater access control features.
MONITOR OUTPUT (P1-7) [Orange]
This output can be used to control the monitor function
of the radio using the <MONITOR> button on the DDU.
This is an open collector output which changes state
each time the <MONITOR> button is pressed.
This output may also be assigned to be the repeater
access control output. See REPEATER SETUP for
more information.
SQ OUT/LTR IN (P1-2) [Brown]
This wire may be either a Squelch Output or a
Trunking Delay (LTR) input, but not both. To use as a
squelch output, install jumper R85 and make sure
jumper JU5 is not installed. To use as a trunking delay
input, remove R85 and install JU5.
When used as a Squelch Output, connect to a point in
the radio which will mute the speaker when brought to
ground (or left floating). Program the appropriate
polarity in the RADIO SETUP menu.
When used as an LTR Trunking Delay Input, connect
to a point in the radio which changes state between 0
and 5 VDC when a channel has been acquired on the
LTR trunking system. The active (channel acquired)
state of this input is programmable in the RADIO
SETUP menu.
DDU-100/200 Manual
MIDIAN ELECTRONICS INCORPORATED PAGE 5
3.2 JUMPER SETTINGS
There are two user configurable jumpers, JU1 and
JU4. Both are installed at the factory. JU1 allows
signaling audio to be heard in the local speaker. If this
is not desired, cut JU1.
JU4 controls the output impedance of transmit audio.
See OUTPUT LEVEL below to determine if JU4 will
need to be cut.
3.3 ADJUSTMENTS
Once the unit has been connected to the radio, several
adjustments must be made to achieve proper
operation. It will be necessary to open the unit. Use the
pictorial to identify the location of the following trim
pots: R2 and R32 near connector P3, R51 near IC U6,
and R105 near the volume control.
INPUT LEVEL (when using decode feature)
Use a service monitor to generate a 1000 Hz test tone
at 2/3 of maximum system modulation (typically 3.3
kHz). Measure the voltage appearing at TP1 and
adjust R2 such that TP1 is at 250mV RMS.
It is also important to program COR Polarity to match
that of the radio. If this is not set properly, the DDU will
not decode some of the formats.
Be sure to set the time of day via TIME SETUP once
the DDU is operating as desired. Once the time is set,
be sure to leave the unit on at all times or else the time
will have to be reset. The time can only be set to the
nearest minute. Seconds are kept track of internally
and start running the instant the unit is turned-on. It is a
good idea to check the time clock monthly as crystal
and temperature variances affect the accuracy.
4 BASIC OPERATION
4.1 DISPLAY MODE
The DDU operates either in Display Mode or Menu
Mode. In display mode, the DDU normally displays the
OUTPUT LEVEL (when using encode feature)
Use a service monitor to measure the modulation level
generated by the DDU. Cause the DDU to generate
tones by typing in a few digits and pressing <SEND>.
Adjust R51 so that the modulation level is at 2/3 of the
maximum system modulation (typically 3.3 kHz).
If the output level cannot be adjusted low enough, it will
be necessary to cut JU4. This changes the output from
low impedance to high impedance.
Tip: EIA format tone 3 is 1023 Hz. Programming the
encode format to EIA and setting encode time to 2000
milliseconds provides a handy test tone. Simply enter
the digit 3 and press <SEND> for 2 seconds of test
tone.
SPEAKER PRE-AMP
Though the DDU has a volume control knob, it also
has an input audio pre-amplifier. While listening to
audio on the channel, adjust R32 so that the minimum
and maximum volume control settings are at desired
levels.
last ANI received.
4.1.1 Reading the Display
ID (ANI) – This is the numeric ID (or ANI) of the user
who last transmitted on the channel. When the Status
Feature is enabled, this area will alternate between
displaying the ANI and the status message every 2
seconds.
TIMESTAMP – This is the time of day that the last ANI
was received. The timestamp is in 24-hour format. In
24-hour format, 4 A.M. is displayed as 04:00 and 4
P.M. is displayed as 16:00. Note that the timestamp
changes only when a new ANI comes in, it is not a
time-of-day clock.
3.4 CONFIGURATION SETTINGS
Once adjustments have been made, it will be
necessary to configure the DDU to meet the system
requirements. This is done via Menu Mode. The most
crucial settings include Decode Format and Encode
Format (if using encode feature). Refer to ENC/DEC
SETUP menu item. Pay close attention to Encode
Time 1 & 2 and Decode Time as well.
USER NAME – This is the name of the user
associated with the numeric ID that was received. User
names are stored in a database. The database must
be configured before names can be displayed.
SCROLL LEFT INDICATOR – Indicates that there are
other ANI’s previously logged. Press the left
<SCROLL> button to view the previously logged items.
DDU-100/200 Manual
PAGE 6 MIDIAN ELECTRONICS INCORPORATED
POWER / EMERGENCY LED – Glows red when
power is turned on. Blinks between orange to indicate
that an emergency status message was received
recently. This indicator remains blinking until the
operator presses any key.
TRANSMIT / BUSY LED – This LED is off when there
is no activity. It glows red during transmit. It blinks
green any time the radio channel is busy.
4.1.2 Keypad Operation in Display Mode
<SCROLL> LEFT - When in Display Mode, the keypad
<SCROLL> keys are used to scroll through the
previously logged ANI’s. The scroll left indicator
remains present on the screen so long as there are
more previous entries to be viewed. The scroll left
indicator disappears when the oldest entry is reached.
<SCROLL> RIGHT - A scroll right indicator will appear
on the right side of the screen when there are newer
entries available for viewing. Press the right
<SCROLL> button to view the newer entries. When the
last entry is reached, the right scroll indicator
disappears.
<#> POUND KEY – Repeatedly pressing the <#> key
will always return the DDU to display mode with the
last ANI received being shown.
menu mode). Upon selection, the name of the item will
appear on the top line of the display. The bottom line
will present additional items for selection. Press the
<#> key to return to the previous selection.
4.2.2 Calling a Unit in the Database
To place a call to a unit in the database, first select
CALL from the Main Menu. Press the right <SCROLL>
button to display the first user in the database. Either
the User ID will be displayed, or the User Name (alias)
will be displayed. This is determined by the Call Entry
Mode setting.
<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 the radio PTT switch, placing the
radio in transmit mode. This is especially useful if your
DDU is equipped with an optional gooseneck
microphone.
NUMBER KEYS – Pressing one of the number keys
<0> through <9> causes the DDU to jump directly into
call mode. See Calling a Unit for more information.
<*> STAR KEY – Pressing the <*> will place the DDU
in Menu Mode at the main menu.
4.2 MENU MODE
The Menu Mode provides the ability to place calls to
radio users and configure the DDU.
4.2.1 Navigating the Menus
Press the star key <*> while in Display Mode to place
the unit into Menu Mode. Upon entry to Menu Mode,
you will be in the Main Menu. The top line of the
display indicates this. The bottom line displays an item
available for selection, in this case the CALL
command.
The scroll right symbol on the right side of the display
indicates that additional items are available. Press the
right <SCROLL> button to view the next available item.
The scroll left symbol will then appear, indicating that
the left <SCROLL> button may be used to go back to
the previous item.
To select the displayed item, press the <SEND> button
(the <SEND> button acts like an ENTER key when in
The left and right scroll indicators will appear on the
bottom line. This is the Select Mode. Use the
<SCROLL> keys to locate the desired user within the
database. When the name is located, press the
<SEND> key to place the call. The <#> key may be
used at any time prior to pressing <SEND> to cancel
the call.
To locate a user in the database more quickly, you can
enter one or more of the first few digits/letters of the
User ID/Name prior to pressing the right <SCROLL>
button. The DDU will search the database for users
matching the first few digits/letters.
4.2.3 Calling a Unit Not in the Database
To place a call to a unit which is not in the database,
start by selecting CALL from the Main Menu or by
pressing a number key while in display mode. Instead
of pressing the right <SCROLL> button, simply key the
numeric ID of the user to be called using the keypad.
Press <SEND> to initiate the call. The left <SCROLL>
key may be used as a backspace key to correct any
errors made during entry. The <#> key may be used at
any time prior to pressing <SEND> to cancel the call.
4.2.4 Numeric vs. Alphanumeric Entry
There are two different data entry modes available on
the DDU. As shipped from the factory, Numeric entry
is the default mode when calling a unit. As numbers
are entered, they appear on the bottom-left of the
DDU-100/200 Manual
MIDIAN ELECTRONICS INCORPORATED PAGE 7
display. Pressing the <*> key while in numeric entry
mode changes the mode to Alphanumeric.
In alphanumeric mode, you may type in letters and
numbers as described in the next section. This allows
you to type the name of a user in the database without
having to scroll through the names. Alphanumeric data
appears on the bottom line of the display as it is
entered. You may make alphanumeric call entry the
default mode by changing the Call Entry Mode setting
in the CONSOLE SETUP menu.
4.2.5 Entering Alphanumeric Data
Entering alphabetic characters using the numeric
keypad is easy. All of the letters of the alphabet appear
above the numbers on the keypad. For example, the
letters ‘A’ ‘B’ and ‘C’ appear on the <2> key.
Alphabetic characters are entered by pressing 2 digits.
The first digit is the key with the desired letter
appearing on it. The 2
on that key. For example, the code for the letter ‘C’ is
23 since it is the 3
is the 1
st
letter on the <8> key, so its code is 81.
nd
digit is the position of the letter
rd
letter on the <2> key. The letter ‘T’
To enter numeric characters in an alphanumeric field,
press the <0> key followed by the desired digit.
Punctuation characters such as comma <,> and <-> do
not appear on the keypad. Special codes have been
assigned to allow entry of those characters. Please
refer to the following chart
Note: Alphanumeric mode cannot be used to enter
user ID's (ANI's). In alphanumeric mode, numbers are
treated the same as letters.
A=21 I=43 Q=72 Y=93 7=07 - =15
B=22 J=51 R=73 Z=94 8=08 = =16
C=23 K=52 S=74 1=01 9=09 * =17
D=31 L=53 T=81 2=02 0=00 / =18
E=32 M=61 U=82 3=03 , =11 # =19
F=33 N=62 V=83 4=04 . =12 Spc=10
G=41 O=63 W=91 5=05 _=13
H=42 P=71 X=92 6=06 +=14
The code 10 is used to insert a space between
characters.
4.2.6 Entering Special DTMF Digits
The DDU supports the following special DTMF 'digits'
in numeric entry mode: *, #, A, B, and C (D is not
supported). These are entered using 2-key sequences
as follows:
* = * * # = * # A = * 1 B = * 2 C = * 3
These special digits can only be entered when adding
a User ID to the database. They cannot be dialed
directly from the CALL menu. Also, these special
sequences should not be used unless you are using
DTMF as the encode or decode format.
4.2.7 Locking and Unlocking the Menus
The menu system incorporates a lock feature to
prevent unauthorized personnel from changing the
DDU configuration. The lock feature also serves to
simplify day-to-day operation of the unit.
When the LOCK command is selected, all of the
menus are disabled. The only items available will be
CALL and UNLOCK. Selecting UNLOCK makes all of
the menu items available again.
When locked, the unit is password protected so only
authorized personnel may unlock the menus. As
shipped from the factory, the security feature is
disabled and the LOCK/UNLOCK options do not
appear. To enable the feature and select a password,
see the SECURITY SETUP menu item.
Remember your password! Once security is enabled
and the menus are locked, the only way to unlock will
be to use the password. If you do forget the password,
contact Midian for the reset procedure.
4.2.8 Repeater Access Control
The DDU can be interfaced to a repeater to limit
access only to those users who are authorized. This is
accomplished by requiring an ANI of the proper format
before granting access. Access can be further
restricted by requiring that the ANI match a User ID
stored in the database. See REPEATER SETUP for
more information.
4.3 USER DATABASE
The user database makes day-to-day operation of the
DDU much easier. You can use easy-to-remember
names instead of just numbers.
4.3.1 User Database Features
The primary purpose of the user database is to
associate names with numbers. This way, when an
ANI comes in, the name of the person can be
displayed along with the ANI. Having a user database
simplifies the calling of units allowing you to scroll
through a list of names.
Another feature of the database is the ability to assign
Kill and Spy ID’s to a user. These features are
designed to work with Midian’s encoder/decoder
products such as the UED-1 series. They allow the
operator of the DDU to disable a radio in the field or
listen in on it.
The DDU can store up to 137 names and ID numbers
in its database. The DDU retains the database memory
even when switched off.
4.3.2 Setting Up the User Database
Begin by compiling a list of names and ID numbers.
DDU-100/200 Manual
Loading...