FunkTronic TKE-2 User manual

TKE-2
Table-Top Communication Unit

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page
Power Supply
voltage +12V DC +/- 25%
current consumption min. ca. 50mA, max. ca. 320 mV (at max.
loudspeaker volume)
AF Levels
input ca. 50 ... 700mV, 200 / 600Ω
ex factory: ca. 100mV, 600Ω
(for internal level: 500mV at Pin 8 / U1)
output ca. 3,7 ... 750mV (range according to JP1)
at 200Ω for 5mV microphone level
ex factory: ca. 400mV (JP1 open)
Weight ca. 420g
Dimensions
pedestal (width x depth x height) ca. 135 x 170 x 30mm
gooseneck microphone, length ca. 280mm
Technical Data
Order No Item
691430 TKE-2 - version with 2 buttons
691431 TKE-2 - version with 1 button
Ordering Information
Content
Ordering Information 2
Technical Data 2
General 3
Connectivity 3
Jumpers und Potentiometers 4
Board Layout 5
General Safety Information 6
Returning of Old Equipment 6
Release Notes 7

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General
Our table-top communication unit TKE-2 is designed for multi-purpose communication applications,
e.g., for use with one radio, public address systems or for use in conference rooms. The TKE-
2 is avaible with a single button or with 2 buttons. Customer-specific versions (e.g., without
loudspeaker, different colours) are available on demand.
With TKE-2 you have the additional possibility to connect several devices in parallel because
the microphone lines are only open, when PTT is activated.
One-Button Version:
An external reference voltage is applied to ST1/pin3.
ST1/pin6 (PTT) is switched to the reference voltage.
Two-Button Version:
PTT (right button): ST1/pin6 switches to GND.
ZBV (left button): ST1/pin3 switches to GND.
Connectivity
ST1 - RJ45 modular jack (rear of pedestal)
1 - AF in A, symmetrc
2 - AF in B, symmetric
3 - PTT Ref (one-button version) or
ZBV - special function (two-button version)
4 - GND
5 - 12V in
6 - PTT out
7 - AF out A, symmetric
8 - AF out B, symmetric
ST2 - Power supply socket (rear of pedestal)
ST3 - Internal multi-pin connector
1 - GND
2 - microphone (+) and supply voltage for electret microphone (ca. 5V)
3 - GND
LS1 - Internal 2-pin connector
1 - AF in A
2 - AF in B
LS2 - Internal 2-pin connector
1 - loudspeaker (+)
2 - loudspeaker GND
ST1 ST2

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Jumpers und Potentiometers
Potentiometers
P1: output amplification
P2: input amplification
P3: volume control for loudspeaker
Jumpers
JP1: Microphone output range: 200 ohm / 600 ohm(ex factory)
open (factory setting): ~ 70-780 mV
right side closed: ~ 11-130 mV
left side closed: ~ 3.7-41 mV
JP2: PTT (1-button version)
right side closed (factory setting): relais output open (ST1 / pin3+pin6)
left side closed: PTT keying vs. GND at ST1 / pin6
JP2: PTT (2-button version)
left side closed (factory setting): PTT keying vs. GND at ST1 / pin6
May not be changed!
JP3: Microphone output
open (factory setting): microphone output is only open when PTT
closed: microphone output is open when ZBV is pressed (w/o PTT)
JP4: Loudspeaker setting
open: LS is always active
closed: LS is muted when PTT is pressed
JP5: Input impedance
open: 4.2 kohm
right side closed: 600 ohm
left side closed: 200 ohm
JP6: Residual volume (when P3 is at minimum)
open: residual volume remains (factory setting)
closed: volume is off

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Board Layout
Blatt
File
Check Drawn
(C) Alle Rechte vorbehalten
Lageplan
D 36381 Schluechtern
Funk Tronic GmbH
TKE2
Moeller26.04.17
1 1
TKE.2
Leiterplatte mit_Lautsprecher
Tischmikrofon
Pechura26.04.17
R12
R11
PTT2
PTT1
R17
P3
C27
C26
1 3 4 5
6 7 8
2
TR1
D2
U1
P1
C8
8 1
ST1
1
LS1
R10
R16
C12
R8
R7
C13
R6
C2
C19
C14
C1
C25
R4
C16
C5
R1
R2
R3
R15
C3
R13
C10
R14
C9
R9
C17
C11
C15
C18
C24
C4
C6
C7
C21
C23
C20
1
U2
U3
1 3 4 5
6 7 8
2
TR2
D1
ST2
1
LS2
P2
1
ST3
F1
JP1
C22
R18
C28
ZBV
JP4
R21
U5
REL1
U6
REL2
R19
REL3
R20
R5B
JP3
R5A
JP5
JP6
R5C
JP2
R17A

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Please read the operating instructions carefully before installation and setup.
The relevant regulations must be complied to when working with 230V line voltage, two-wire-
lines, four-wire-lines and ISDN-lines. It is also very important to comply to the regulations
and safety instructions of working with radio installations.
Please comply to the following safety rules:
- All components may only be mounted and maintained when power is off.
- The modules may only be activated if they are built in a housing and are scoop-proof.
- Devices which are operated with external voltage - especially mains voltage - may only
be opened when they have been disconnected from the voltage source or mains.
- All connecting cables of the electronic devices must be checked for damage regularly
and must be exchanged if damaged.
- Absolutely comply to the regular inspections required by law according to VDE 0701
and 0702 for line-operated devices.
- Tools must not be used near or directly at concealed or visible power lines and conductor
paths and also not at and in devices using external voltage – especially mains voltage -
as long as the power supply voltage has not been turned off and all capacitors have been
discharged. Electrolytic capacitors can be still charged for a long time after turning off.
- When using components, modules, devices or circuits and equipment the threshold
values of voltage, current and power consumption specified in the technical data must
absolutely be complied to. Exceeding these threshold values (even if only briefly) can
lead to significant damage.
- The devices, components or circuits described in this manual are only adapted for the
specified usage. If you are not sure about the purpose of the product, please ask your
specialized dealer.
- The installation and setup have to be carried out by professional personnel.
Returning of Old Equipment
According to German law concerning electronic devices old devices cannot be disposed off
as regular waste. Our devices are classified for commercial use only. According to § 11 of
our general terms of payment and delivery, as of November 2005, the purchasers or users
are obliged to return old equipment produced by us free of cost. FunkTronic GmbH will
dispose of this old equipment at its own expense according to regulations.
Please send old equipment for disposal to: FunkTronic GmbH
Breitwiesenstraße 4
36381 Schlüchtern
GERMANY
>>> Important hint: freight forward deliveries cannot be accepted by us.
February 2nd , 2006
Subject to change, Errors excepted
General Safety Information

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Release Notes
2017-Oct-27 - First English version
2018-Sep-10 - Clarification of button positions for two-button version