Mobatime DTS 2440.audio-clock User manual

© MOBATIME BE-800678.01
INSTRUCTION MANUAL
DTS 2440.audio-clock
Time announcer („speaking clock“) / Broadcast time signal generator

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Certification of the Producer
STANDARDS
The device has been developed and produced in accordance with the EU Standards
2004 / 108 / EG
Applied standards:
EN 61000-6-2
EN 61000-6-4
References to the Instruction Manual
1. The information in this Instruction Manual can be changed at any time without previous notice.
2. This Instruction Manual has been composed with utmost care, in order to explain all details in re-
spect of the operation of the product. Should you, nevertheless, have questions or discover errors
in this Manual, please contact us.
3. We do not answer for direct or indirect damages, which could occur, when using this Manual.
4. Please read the instructions carefully and start the setting-up of the product, only once you have
correctly understood all information for the installation and of the operation.
5. The installation must only be carried out by skilled staff.
6. It is prohibited to reproduce, to store in a computer system or to transfer this publication in a way
or another, even part of it. The copyright remains with all the rights with MOSER-BAER AG – CH
3454 Sumiswald / SWITZERLAND and BÜRK MOBATIME GmbH, D-78026 VS-Schwenningen.
.

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Content
1. Introduction ........................................................................................................................ 4
2. Dimensions......................................................................................................................... 4
3. Block diagram .................................................................................................................... 5
4. Operation ............................................................................................................................ 6
4.1 Selection of operation mode ......................................................................................................6
4.2 State indication (LED)................................................................................................................6
4.3 DIP Switch.................................................................................................................................7
5. Device mode ....................................................................................................................... 8
5.1 General .....................................................................................................................................8
5.2 Time announcer („speaking clock“) ............................................................................................8
5.3 Broadcast time signal generator.................................................................................................8
5.4 Inhibit function ...........................................................................................................................8
6. Switch over function .......................................................................................................... 8
7. Supervision of DTS 2440.audio-clock............................................................................... 9
8. Connection (rear view)....................................................................................................... 9
9. Maintenance ....................................................................................................................... 9
10. Technical specification .................................................................................................... 10

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1. Introduction
DTS 2440.audio-clock has 2 different applications. The device works as time announcer
(„speaking clock“) or as broadcast time signal generator.
DTS 2440.audio-clock is redundant and includes two identical systems. In case of alarm the
monitor switches automatically from system 1 to system 2. Using the device in a real
redundant application it is necessary to connect two independent time sources (IF 482
telegram) and two independent power supplies.
„Speaking clock“: Audio output of the time in hours, minutes and seconds followed by a
beep. The language of the announced time is British English. Interval and volume is
selectable.
Broadcast time signal generator: Beep output. Length an frequency adjustable.
2. Dimensions

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3. Block diagram

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4. Operation
4.1 Selection of operation mode
Switch position:
Description:
System 2 Master clock 2 is permanently selected as the active system
System 1 Master clock 1 is permanently selected as the active system
auto Master clock 1 is working as the active system. In case of failure the DTS
2440.audio-clock automatically switches to master clock 2 (The state of system
2 is irrelevant)
4.2 State indication (LED)
LED:
State:
Description:
auto on Operation mode ”auto” selected
off Operation mode ”System 1” or ”System 2” selected
System 2
active on System is currently active
off System is currently inactive
power on Power supply is available
off Power supply is not available
signal on Time signal (IF 482 telegram) is available
off Time signal (IF 482 telegram) is not available
alarm on Active alarm on system reported
off Normal operation
System 1
active on System is currently active
off System is currently inactive
power on Power supply is available
off Power supply is not available
signal on Time signal (IF 482 telegram) is available
off Time signal (IF 482 telegram) is not available
alarm on Active alarm on system reported
off Normal operation
Operation mode selection:
System 2
System 1
auto
State system 1/2:
active (Currently active)
power (Power supply)
signal (Time signal input)
alarm (Alarm)
Operation mode
LED on: auto Fig. 1

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4.3 DIP Switch
Inte
rval
5 6 7 Interval [s]
Off Off Off 60
On Off Off 60
Off On Off 60
On On Off 60
Off Off On 30
On Off On 20
Off On On 10
On On On OFF
Device mode
8 Mode
Off Time announcer ("speaking clock")
On Broadcast time signal generator
Volume
1 2 3 4 Level [dBm]
Off Off
Off
Off 0
On Off Off Off 0
Off On Off Off 0
On On Off Off 0
Off Off On Off 0
On Off On Off 0
Off On On Off -1
On On On Off -2
Off Off Off On -3
On Off Off On -4
Off On Off On -5
On On Off On -6
Off Off On On -7
On Off On On -8
Off On On On -9
On On On On -10
I
2
C A
d
dress
9 10 11 12 Address
Off Off Off Off 0
On Off Off Off 1
Off On Off Off 2
On On Off Off 3
Off Off On Off 4
On Off On Off 5
Off On On Off 6
On On On Off 7
Off Off Off On 8
On Off Off On 9
Off On Off On 10
On On Off On 11
Off Off On On 12
On Off On On 13
Off On On On 14
On On On On 15
ON
1 2 3 4 5 6 7 8 9 10 11 12

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5. Device mode
5.1 General
The device mode is initialised by the manufacturer and cannot be modified by the customer.
To ensure a proper monitoring of the output signal the DIP-Switch 8 has to be set on the po-
sition according to the device mode.
5.2 Time announcer („speaking clock“)
Audible announcement of the time in hours, minutes and seconds followed by a beep. The
beep indicates the time when the announced time is valid. The time announcement lan-
guage is British English and has following format: „2 hours – 1 minute – 0 seconds“
Set DIP-Switch 8 to position OFF. The beep starts exactly to the beginning of the second.
The length is 500ms and the frequency is 1kHz.
With DIP-Switches 5..7 the intervals 60s, 30s, 20s or 10s are selectable. Additional it’s pos-
sible to switch off the time announcement with these switches.
For intervals bigger than 1 minute the inhibit function is available.
5.3 Broadcast time signal generator
Set DIP-Switch 8 to position ON. It’s possible to output a beep on every beginning of a se-
cond. So a maximum of 60 beeps per minute are audible. The interval selection with DIP-
Switches 5..7 is disabled. Frequency and length of every beep is adjustable:
Frequency range: 500Hz .. 10kHz 5% in steps of 1Hz
Length: 10ms..500ms in steps of 10ms
For intervals bigger than 1 minute the inhibit function is available.
5.4 Inhibit function
A connection between the two inhibit inputs inhibits the audio output. Thereby it is possible
to achieve intervals bigger than one minute by connecting a relay switch.
6. Switch over function
The operation mode selector on position “auto” means that if on system 1 an alarm appears
the DTS 2440 switches automatically to system 2. It is irrelevant if system 2 also displays an
alarm. There are 4 different alarm cases:
1. Power supply not available (additional displayed by the extinguished green power
LED)
2. Time signal not readable/available (additional displayed by the extinguished green
signal LED)
3. Output monitor: The level of the output signal is lower than expected (no beep), or is
permanently on the same value (continuous beep).
4. Internal error of the MP3 players

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7. Supervision of DTS 2440.audio-clock
Every system has got an own I2C communication interface to a supervision DTS device. This
function is a future intention and not yet implemented.
8. Connection (rear view)
DTS
Extension
2
DTS
Extension
1
Alarm
13 14 15
System 2
1 GND 2 232 TX 3 232 RX 4 DC in+ 5 DC in-
System 1
6 GND 7 232 TX 8 232 RX 9 DC in+
10 DC in-
DTS
Address
DC IN 1
DC IN 2
20-65V
max. 5W
Audio
Level
Time interval Device mode
11 12
Inhibit
3
12
1 COM
2 Line
3 Line
Balanced Audio Out
0 dBm
600 Ohm
ON
123456789 10 11 12
Terminal Connection Description
1
2
RS232 GND system 2 Serial communication of system 2
IF482 telegram
2
2
RS232 TXD system 2
3
2
RS232 RXD system 2
4
3
DC in 2 power supply + Input for an ext. power supply (20..65VDC) for system 2
5
3
DC in 2 power supply - Input for an ext. power supply (ground) for system 2
6 RS232 GND system 1 Serial communication of system 1
IF482 telegram
7 RS232 TXD system 1
8 RS232 RXD system 1
9 DC in 1 power supply + Input for an ext. power supply (20..65VDC) for system 1
10 DC in 1 power supply - Input for an ext. power supply (ground) for system 1
XLR 1 Audio output COM Audio output shield 0..-10dBm at 600
Balanced
XLR 2 Audio output line Audio output “hot”
XLR 3 Audio output /line Audio output “cold”
DTS Ext 2
1
I
2
C supervision system 2 I
2
C communication for supervision for system 2
DTS Ext 1
1
I
2
C supervision system 1 I
2
C communication for supervision for system 1
11* Inhibit A To inhibit the audio output.
Example application: relay switch
12* Inhibit B
13 Alarm relay “break” Opens in case of Alarm Rating:
30W (150VDC or 1A) /
60VA (125VAC or 1A)
14 Alarm relay “make” Closes in case of Alarm
15 Alarm relay change over Common contact
1I2C communication to supervision DTS (future intention, function not yet implemented)
2For non redundant running connect the same time signal as for system 1
3For non redundant running connect the same power supply as for system 1
9. Maintenance
For a function control of the internal relay switch it is recommended to switch the operation
mode selector from position “auto” to position “system 2” and back to “auto” for one time per
year.

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10. Technical specification
Power supply 20VDC..65VDC ±10%
Power consumption < 5W
Signal input IF482 telegram (RS232)
Time announc-
er
Format Hours, minutes, seconds in British English
Acoustic signal Beep, frequency 1kHz, length 500ms
Volume 0dBm..-10dBm at 600balanced, selectable in steps of 1dB
Interval 60s, 30s, 20s, 10s, OFF
Broadcast
time signal
generator
Interval Possible on every beginning of the second
Frequency 500Hz..10kHz 5%
Length 10ms..500ms, selectable in steps of 10ms
Dimensions 19" Rack, 1HE (W x H x D [mm] = 483 x 44 x 125)
Weight about 1.6kg
Environment temperature 0..50°C, 10-90% relative humidity, without condensation
Alarm contact Load: 30VDC / 1A / 30W respectively 125VAC / 1A / 60VA
Standards EN 61000-6-2; EN 61000-6-4

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© MOBATIME BE-800678.01