Midian UED-1 Series User manual

1
UED-1B-DMV
Multi-Format Encoder & Decoder
Manual Revision: 2012-12-18
Covers Software Revisions:
UED-1: 4.0

2
SPECIFICATIONS
Operating Voltage +5.5-18 VDC
Operating Current 24 mA
Operating Temperature -30 - +60 C
PTT Output Current 200 mA
Horn Output Current 200 mA
Disable Output 200 mA
Input Level 25-500 mV RMS
Input Impedance 100 K
Audio Output Level 1V RMS
Audio Output Impedance 10K/22 K
GENERAL INFORMATION
The UED-1 Series offers ANI encoding, dialing, decode and transpond of tone formats such as DTMF, 5-tone, 2-
tone, Pulse Tone, and Burst Tone. The UED-1 Series can be used with Midian’s CAD-100, CAD-200, DDU-100
and DDU-200 for dispatching in fleets or it can be used for equipment or alarm activations.

3
PRODUCT PROGRAMMING
For programming via a keypad, please reference the UE/UED Series Keypad Programming Manual.
Midian’s UED-1B-DMV is programmed using the KL-4 programming interface and the MPS software. Please
reference the KL-4 manual for setup instructions of the KL-4 hardware and MPS software. From the product
selection screen on the MPS software, select the appropriate product name from the list and click OK.
Set the parameters of the unit to fit the application. If any clarifications on a feature are required, move the mouse
cursor over the feature name until the question mark appears and right click, a definition of the feature will be
shown.
After entering the parameters, save the file by going to File - Save As. Enter the file name in the File Name block
and click Save. Saving the file will allow for quick and easy reprogramming of units.
Connect the Blue wire to the Green KL-4 flea clip lead, it will be necessary to remove JU6 and install JU8 or you
can clip the Green KL-4 lead to JU8. The Black wire goes to a common ground with the KL-4’s Black flea clip
lead. The Yellow clip lead is not used with these products, as the UED-1 is non-readable.
Ground the PTT Input (White Wire); turn on power to the KL-4 and UED and within 5 seconds click “Program Unit”
in the menu bar to send the file to the UED-1.

4
HARDWARE INSTALLATION
Be certain to follow standard anti-static procedures when handling any of Midian’s products.
P1-1 – Black – Ground – Connect to the nearest ground point.
P1-9 – Red – 5.5-18 VDC – Connect to switched B+ in the radio.
P1-3 – Gray – COR/COS Input – Connect to point in the squelch or CTCSS circuit that changes logic level when
carrier is received.
P1-11 – Orange – RX Tone Input – Connect to an audio point in the receiver, usually the high side of the volume
control or discriminator output. When using CTCSS, pick up the audio after the high pass filter.
P1-5 – Light Brown – Monitor/Squelch Out – Connect to a point in the squelch circuit that normally changes logic
level with carrier. The squelch polarity is set in the MPS software and by selecting the polarity of D-5 by changing
its direction. R-65 can be changed to provide more or less current as needed. Do not allow the Monitor/Squelch
Output to conflict with the COR/COS lead input.
P1-12 – Blue – Auxiliary/Emergency Input - When taken to Ground, this input can send Emergency or encode in
a secondary dialing format. This depends on the Auxiliary Input setting in the MPS software under the Control
tab. This lead can also be used to disable the transpond. The product comes from the factory setup for this
feature with JU6 installed.
This lead can also be used for the Deadbeat Disable function of the UED-1. When activated Q6 latches low until
commanded to unlatch. To activate this feature, uninstall JU6 and install JU7.
This blue lead can also be used for the Program Input by uninstalling JU6 or JU7 and installing JU8. This can be
connected to the monitor button, squelch pot switch, or the KL-4’s Green Lead.
P1-4 – Green - Momentary Horn – When used as Horn, this provides a 0-9 second ground during ringing through
FET1 (500 mA).
P1-8 – Yellow – TX Tone Out – Connect to the modulator circuit. Use high impedance point in the radio. If
generating CTCSS, use the CTCSS point in the modulator.
P1-2 – Violet – Alert Tone/Speaker Audio – Connect to high side of the speaker. This provides Time-Out Timer,
Penalty, and Go Ahead tones. When using 20-40 Ohm speakers, the onboard resistor in series with Q5 should
be sufficient. When attaching this lead to a 4-8 Ohm speaker, add a 100-Ohm resistor in series with the lead to
limit current.
P1-6 – White – PTT In – Requires a logic low from the radio’s PTT switch. If TOT is not needed, the PTT In &
Out wires can be tied together and connected directly across the radio’s PTT switch. For non-common PTT, open
the PTT path and connect the gray wire to the switch.
P1-7 – Dark Brown – PTT Out – Connect to the other side of the open PTT path as referred to in the above step.
The UED now has control of the PTT for Time Out Timer (TOT) and penalty timer. The PTT transistor, Q4, is
rated at 100 mA continuous.

5
HARDWARE ALIGNMENT
RX Audio Input: On the UED-1B-DMV adjust R5 so that Pin 14 of U2 doesn’t quite clip when a 1 KHz tone
modulated at 3.3 KHz deviation from a signal generator is applied. (Blowing squelch noise should fully clip).
TX Audio Output: In a wide band system, set the modulation pot R42 to 3.3 KHz (66% of 5 KHz) of deviation per
EIA specifications. In a narrow band system, set the modulation pot R42 to 1.65 KHz (66% of 2.5 KHz) of
deviation per EIA specifications. Set CTCSS deviation to 750 Hz – 1 kHz. In Low-Z mic circuits, it may be
necessary to install JU3.
COR/COS: If the radio only makes a minute change, it may be necessary to adjust R18, R19, & R20 to cause Q1
to change states.

6
OPERATION
ANI Encode: When the PTT Input is grounded, the unit will assert the PTT Output and send the programmed
ANI tones out the TX Tone Output.
ENI Encode: When the Emergency Input is grounded, the unit will assert the PTT Output and send the
programmed Emergency ANI tones out the TX Tone Output.
Keypad Dialing: To send a page or make a selective call via the keypad enter the desired sequence followed by
the * key. The * key acts as the send key. If a mistake is made during entry, press the # key to clear the entry.
When the * key is pressed the unit will assert the PTT Output and send the sequence out the TX Tone Output.
Memory Dialing: The technical notes section explains how to enter the memory dials into memory. To send a
sequence from memory enter the * key followed by a 0-9 that corresponds to the sequence in memory you wish
to send. When the memory dial is entered the unit will assert the PTT Output and send the sequence out the TX
Tone Output.
Decode: Upon decode the unit will ring, via the Alert Tone/Speaker Audio line, according to the ring code
programmed. The unit will also give the following outputs depending on the hardware configuration:
1. Momentary Horn Output: This will give an open collector output to ground for 0-9 seconds depending on the
programmed horn time.
2. Latched Monitor/Squelch Output: This output can either go from low to high or from high to low by changing
the direction of D-5.
3. Latched Mic Mute: This will give an open collector to ground. It will be necessary to install a 10 KOhm
resistor to the open collector. Set the Monitor Polarity to Ground and the Input as “Controls Squelch”. The
Squelch Control should be “Unmute when called” or “Stay muted until called”. The Monitor or Inactivity field
can be programmed to any setting.
4. Latched Disable Output: If used, the Horn Output is not available. It will be necessary to reconfigure the
hardware jumpers from the Horn to the Disable line. To use this output it is necessary to program the ring
code as “Unit deadbeat disable”. Upon receiving the decode sequence the output will latched and stay
latched until it receives the sequence again.
Resetting of Outputs: The momentary output will automatically reset after 0-9 seconds depending on
programming. The Mic Mute and Monitor/Squelch outputs can be reset by recycling power, sending another
sequence with the ring code of “Turn off call lamp/mute”, resetting on a loss of carrier, by grounding the monitor
input, or after 25 seconds of inactivity. These reset options depend upon the programming of the unit.
Transpond: If programmed, upon decode the unit can transpond a tone sequence back to the caller to indicate
the unit decoded. Transpond only occurs on Decode #1.
COR Input: This input controls two functions, busy lockout and reset of a loss of carrier. The COR polarity must
be programmed for the active carrier polarity of the radio.
1. Busy Lockout: If COR is active and the unit tries to encode with busy lockout enabled, the unit will be
prevented from keying up.
2. Reset on Loss of Carrier: The unit can reset the latched outputs after a loss of carrier of 0-9 seconds
depending on programming.

7
TECHNICAL NOTES
Decode Timings: We recommend using the following timings:
5-tone: 5 msec for 30-70 msec tones
5-tone: 10 msec for 70-100 msec tones
Pulse (1500 & 2805 Hz): 10 msec
2-tone: 200 msec
DTMF: 1 sec
Memory Dial: The UED-1 support a 10 number memory dial and last number redial. Last number redial is
accomplished by entering **. To enter the programming mode for memory dial enter the following sequence:
000000
The unit will beep 3 times to confirm entry into programming mode.
To enter a memory dial enter the sequence followed by *n, where n equals the memory location (0-9). For
example 1234*1 would enter a sequence of 1234 in the first memory dial register. For special characters such as
A, B, C and D press the PTT while pushing the “2” key for A, the “5” key for B, the “8” key for C, and the “0” key
for D. The European group tone “G” can also be used by holding the PTT and pressing the “*” key. To exit
memory dial programming, enter the following sequence:
000000
The unit will respond with a long beep and resume normal operation.
To dial from memory, simply enter *n, where n equals the memory location (0-9).

8
MIDIAN CONTACT INFORMATION
MIDIAN ELECTRONICS, INC.
2302 East 22nd Street
Tucson, Arizona 85713 USA
Toll-Free: 1-800-MIDIANS
Main: 520-884-7981
E-mail: [e-mail]
Web: www.midians.com

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MIDIAN ELECTRONICS, INC.
DATE:
DESIGN:
DWN BY:
REV:
APPR
COPYRIGHT ©
REV
SHEET PROJECT NUMBER
DOCUMENT NAME
SCHEMATIC
2012
UED-1B-DMV
1
2
3
(
JU1
JU2
.022u
C1
*
C51 11
33
22
1M
R5
39K
R1
47p
C8
560K
R2
TP1
-
+
2
3
1
LMV324
U2:1
-
+
6
5
7
LMV324
U2:2
-
+
9
10
8
LMV324
U2:3
-
+
13
12
14
LMV324
U2:4
4
VCCVCC
11
GNDGND
LMV324
U2:5
VAN
10K
R7
6.2K
R82
.01u
C9
180K
R8
.001u
C3
.01u
C2
10K
R4
15K
R3
.001u
C11
6.2K
R9
47K
R10
.1u
C4
100p
C5
TP2
27K
R11
560p
C6 -
+
2
3
1
LMV358
U3:1
-
+
6
5
7
LMV358
U3:2
8
VCCVCC
4
GNDGND
LMV358
U3:3
27K
R79
27K
R80
2.2K
R81
+5V
470K
R12
TP3
.01u
C13
47K
R15
560p
C14
200K
R16
560p
C15
560p
C16
3.3M
R17
VAN
+
2.2u
C17
.1u
C18
+5V +5V
100K
R19
12
JU5
4.7K
R18
220K
R20
B25
Q1
20K
R21
+5V +5V
10K
R23
+5V
560p
C21
21
A6
D1:1
3 1
A6
D1:2
10K
R24
10K
R25
10K
R26
10K
R27
10K
R28
10K
R29
10K
R30
P1:1
P1:2
P1:3
P1:4
P1:5
P1:6
P1:7
P1:8
P1:9
+5V
.001u
C22
VIN
100p
C24
100p
C25
100p
C26
10K
R32
10K
R33
12
)
JU6
12
JU7
12
JU8 4.7K
R72
B25
Q6
21
A6
D2:1
31
A6
D2:2
2 1
A6
D3:1
3 1
A6
D3:2
+5V
560p
C23
+5V
1 2
MON. ON/OFF
SW1
5206
IN1
1
ENA
3
GND
2RES 4
OUT 5
VR1
560p
C27
.001u
C28
1u
C29
4.7K
R34
4.7K
R35
.001u
C32
VIN
VAN
+5V TP4
*
C20
10K
R22
+5V
CS 1
SCLK2
SI 3
SO 4
VCC
8
NC1
7
NC2
6
GND
5
CAT93C46
U5
.1u
C33
+5V
47K
R36
47K
R77
OSC2
42
TCAP
41
D7 39
OSC1
43
A5 7
A6 6
A7 5
A4 8
A3 9
A1 11
A0 12
C4
27
C1
30
C6
25
GND
22
TCMP 38
IRQ
2
VDD 44
VPP 4
SS 37
B3 16
B0
13
B1 14
A2 10
C5
26
C3
28
C0
31
C2
29
C7
24
B4 17
B7
21
B6 20
RES
1
B2 15
B5 19
SCK
36
MOSI
35
MISO
34
RDI
32
TDO
33
NC4
3NC1
18
NC2
23 NC3 40
MC68HC705C8
U1
.1u
C34
12
JU4
Q1
Q2
CK
3
R
4
D5
6 7 8 9
10 11
Q12 Q13
V+ 14
4013
U7
.001u
C50
.01u
C49
100K
R73
1 2
HORN ON/OFF
SW2
1.2M
R74
+5V
+5V +5V
10K
R71
21
A6
D7:1
31
A6
D7:2
4.7K
R75
B25
Q7
1K
R76
GRN HORN
LED3
+5V
TP8
B2
2 1
A6
D8:1
3 1
A6
D8:2
BSS
FET1
560p
C48
2.2K
R70
4.7K
R69
B25
Q5
1N5231
DZ1
82R
R31 560p
C47
82R
R14
82R
R13
VIN
1K
R66
1K
R67
RED SEND
LED1
YEL CALL
LED2
TP9
4.7K
R68
100p
C45
BSS
Q4
2 1
A6
D6:1
3 1
A6
D6:2
560p
C46
TP10
560p
C44
1
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3
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JU10
JU11
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21
A7
D5:1
31
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TP7
47K
R65
B25
Q3
4.7K
R64
VIN
MT8870
OSC1 8 OSC2 9
GS 3
IN- 2
St/GT 19
ESt 18
IN+ 1
VREF 4
VCC 20
PWDN
6
INH
5
GND
10
STD
17
Q1
12
Q2
13
Q3
14
Q4
15
TOE
11
NC1
7NC2
16
U6
20K
R48
20K
R50
20K
R52
20K
R54
20K
R56
20K
R58
20K
R60
20K
R62
10K
R49
10K
R51
10K
R53
10K
R55
10K
R57
10K
R59
10K
R61
U1_A4
U1_A5
U1_A6
U1_A7
U1_A4
U1_A5
U1_A6
U1_A7
100K
R83
1.2M
R47
1.2M
R45
470K
R46
2 1
A6
D4:1
3 1
A6
D4:2
.1u
C43
+5V
470K
R44
.01u
C42
.1u
C41
+5V
TP6
22K
R38
22K
R39 390K
R40
.01u
C37
560p
C38
D25
Q2
11 33
22
1K
R42
27K
R43
12 JU3
+
2.2u
C12
100p
C40
+
2.2u
C39
VINVIN
TP5
U1_B6
47K
R41
1 2
JU9
U1_B6
U1_OSC2
3.58 MHz.
Y1
22p
C35
22p
C36
4.7M
R37
U1_OSC2
1
GND[BLK]
P2:1
ALERT TONE/SPKR OUT[VIO]
P2:2
COR/COS IN[GRY]
P2:3
HORN OUT[GRN]
P2:4
MON/SQ OUT[LT BRN]
P2:5
PTT IN[WHT]
P2:6
PTT OUT[DK BRN]
P2:7
PTT OUT[DK BRN]
P2:8
VIN +5.5V-18V[RED]
P2:9
RX HI PASS OUT[PNK]
P2:10
RX TONE IN[ORG]
P2:11
EMER/AUX IN[BLU]
P2:12
*
UK1
*
UK2
TP11
.47u
C31
10K
R63
.01u
C19
.47u
C30
+5V
.0033u
C7
.0033u
C10
2.2K
R6
15K
R78

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