LOGIBIT 1200
MANUAL
TABLE OF CONTENTS
1. FEATURES ON THE CONTROL PANEL............................................................... 1
2. MENU STRUCTURE................................................................................................. 2
2.1 Function keys............................................................................................................................ 2
2.2 Menu points.............................................................................................................................. 2
2.3 Illustration of menu structure.............................................................................................. 5
3. FEATURES ON THE BACK PANEL......................................................................... 8
3.1 General....................................................................................................................................... 8
3.2 Options...................................................................................................................................... 10
3.3 Installation of front to 19” rack............................................................................................ 11
3.4 Fuses and 115/230 volt AC exchanger................................................................................ 11
3.5 Control port............................................................................................................................. 12
3.6 Serial port.................................................................................................................................. 13
4. SAFETY INFORMATION......................................................................................... 14
5. APPROVAL................................................................................................................ 14
6. BLOCK DIAGRAM.................................................................................................... 15
7. SPECIFICATIONS..................................................................................................... 16
7.1 Technical data............................................................................................................................ 16
7.2 Special functions...................................................................................................................... 17
7.3 Options...................................................................................................................................... 17
LogiBit 1200 manual
Table of Contents
1. FEATURES ON THE CONTROL PANEL
➀ On/Off Switch: This switch switches the amplifi er on and off.
➁ On indicator: This green LED lights when the amplifi er is on.
➂ LA +18 dB indicator: This red LED lights, when the signal level on the teleloop
amplifi er has reached maximum. With correct amplifi er
adjustment this LED should never light.
➃ INPUT +10 dB indicator: This red LED lights, when any one of the two to fi ve +10 dB
indicators on the back of the amplifi er lights. With correct
amplifi er adjustment this LED should only blink when there are
loud passages otherwise the level of the signal fed to the input
of the amplifi er is too high.
➄ REC indicator: This green LED lights, when REC function is chosen. The green
LED is turned off, when the play function is chosen.
➅ AGC indicator: This green LED lights, when the AGC-circuit is active.
➆ Display
➇ 4 function keys: The LogiBit 1200 amplifi er’s 4 function keys are described in
section 2.1 Function keys.
LogiBit 1200 manual
Features on the Control Panel
➀
➁➂
➃➅➆➄
➇
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LogiBit 1200 manual
Menu Structure
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➁
➂
➃
➀
2. MENU STRUCTURE
2.1 FUNCTION KEYS
➀ LEFT/UNDO: With this key you can move to the left in the menu structure.
The key is also used to undo changes in a parameter, which has
not already been saved.
➁ UP/INCREASE: With this key you move upward in the menu structure. It can
also be used to change/increase a parameter.
➂ RIGHT/SAVE: With this key you move to the right in the menu structure. The
key is also used to save changes in a parameter.
➃ DOWN/DECREASE: With this key you move downward in the menu structure. The
key is also used to change/decrease a parameter.
2.2 MENU POINTS
SERVICE MODE: The individual parameters in the amplifi er can only be changed
when the LogiBit amplifi er is in SERVICE MODE. To do this you
must switch off the amplifi er at the on/off switch, then while
holding function key ➁ up/increase and ➃ down/decrease in at
the same time, turn on the amplifi er. Display will show
“SERVICE” for a short period. If the LogiBit amplifi er is
not put in SERVICE MODE the only parameters that can be
changed are RECORD and CONTRAST.
WARNING! The above may only be carried out by authorized Phonicear
personnel. It is strongly advised that no unauthorized
person is allowed to put the amplifi er in SERVICE MODE.
LogiBit 1200 manual
Menu Structure
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RECORD: Select “ON” when recording thereby switching off TAPE INPUT.
This avoids feedback in situations where a tape recorder is
connected to both TAPE INPUT and TAPE OUTPUT. In the
“OFF” position both TAPE INPUT and TAPE OUTPUT are
active. REC ON/OFF function can also be changed without the
amplifi er being in SERVICE MODE.
CONTRAST: Used for adjusting the contrast in the display. Contrast can also
be adjusted, without the amplifi er being in SERVICE MODE.
CODE: In connection with an upgrading of a LogiBit 1200 to a LogiBit
1260 it is necessary to type in a code (see also the next point
ID). After the code has been typed in, the amplifi er should be
switched off for a short period to allow the upgrading to take
effect.
ID: Before you can receive the code used in upgrading a LogiBit
1200 to a LogiBit 1260 it is necessary to give the ID-number of
the amplifi er to your Logia dealer.
AUTOCAL: In connection with a new installation, changes of the area size or
changes in the dimensions of the teleloop cable, AUTOCAL
shall be “ON” the fi rst time the amplifi er is turned on. In this
position the amplifi er calibrates with the teleloop cable. When
the calibration is fi nished AUTOCAL should be in the “OFF”
position. Thereby you avoid hearing on the teleloop the calibra ting signals the amplifi er uses when it is turned on. After the
amplifi er has completed its calibrating procedure for the fi rst
time, the current in the teleloop cable will automatically
be set to 1 ampere. LA VOL will be automatically set to 0 dB.
LA VOL: Used to adjusting the current in the teleloop cable and thereby
the strength of the magnetic fi eld. After the amplifi er has
completed its calibrating procedure for the fi rst time, the
current in the teleloop cable will automatically be set to
1 ampere. LA VOL will be automatically set to 0 dB.
BASS: Select BASS to adjust the bass on the teleloop signal.
AGC MODE: Menu point REMOTE allows, that the AGC-circuit can be
switched on and off via the 25 pin Sub-D port marked
CONTROL on the back panel of the amplifi er. Select “OFF” to
switch off the AGC-circuit. Under normal operating conditions,
select “ON”, to activate the AGC-circuit.
AGC GAIN: Used to adjust the number of required dBs that the AGC-circuit
should use to strengthen a weak signal. T he AGC-circuit is able
to reduce a powerful signal with up to 20 dBs.
TREBLE: Select TREBLE to adjust the treble on the teleloop signal.
4
MIC.1- 5: Select this menu point to change the parameters for respectively
microphone and line-in 1-5. Microphone and line-in 3-5 are not
standard, but can be built in as an option.
VOLUME: Used for adjusting the signal level immediately before mixing
point. As a starting point choose 0 dB. If the output signal is
distorted, this parameter should be reduced.
REMOTE: REMOTE set to “ON” allows mute of line-in via the 25 pin
Sub-D port marked CONTROL on the back panel of the
amplifi er.
MIX.OUT: This menu point determines, whether a signal connected to an
input can be heard on the teleloop (LA) or not (NONE).
TA P E : Select TAPE to change the parameters for TAPE INPUT.
VOLUME: Used for adjusting the signal level immediately before mixing
point. As a starting point choose 0 dB. If the output signal is
distorted, this parameter should be reduced.
MIX.OUT: This menu point determines, whether a signal connected to an
input can be heard on the teleloop (LA) or not (NONE).
REC.1 & 2: Select this menu point to change the parameters for the wire
less receiver modules. T he wireless TOA receiver modules are
not standard, but can be built into the amplifi er as an option.
VOLUME: Used for adjusting the signal level immediately before mixing
point. As a starting point choose 0 dB. If the output signal is
distorted, this parameter should be reduced.
STARTUP: Select “ON” and the wireless TOA receiver modules are turned
on, when the amplifi er is turned on. Choose “OFF” and the
wireless microphones are switched off when the amplifi er is
turned on.
REMOTE: REMOTE set to “ON” allows the wireless TOA receiver
modules respectively switch on and off via the 25 pin Sub-D
port marked CONTROL on the back panel of the amplifi er.
MIX.OUT: This menu point determines, whether a signal connected to an
input can be heard on the teleloop (LA) or not (NONE).
LogiBit 1200 manual
Menu Structure
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2.3 ILLUSTRATION OF MENU STRUCTURE
LogiBit 1200 manual
Menu Structure
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LogiBit 1200 manual
Menu Structure
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LogiBit 1200 manual
Menu Structure
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18 11
➉
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LogiBit 1200 manual
Features on the Back Panel
➀
➁
➂
➃➄
➅
➈
➆
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12
➇
➉
3. FEATURES ON THE BACK PANEL
3.1 GENERAL
➀ LA OUT: The teleloop cable is connected here. You should be aware of
the demands made regarding the dimensions of the teleloop
cable. These demands are described in section 7.1 Technical
data. Read safety information in section 4. Safety information.
➁ POWER SOCKET: The three pin power cord is plugged in here.
WARNING: Do not try to bypass or remove the earth, or
you run the risk of getting an electric shock.
➂ FUSE COMPARTMENT: This contains the AC fuses. The fuse compartment makes it
possible to choose between 230 volt AC or 115 volt AC.
NB! See AC fuses in section 3.4 Fuses and 115/230 volt AC
exchanger. Changes may only be carried out by qualifi ed
personnel.
➃ SERIAL PORT: This nine pin Sub-D (female) port makes it possible to change
the parameters via Windows® 95 PC Control Software
(OPTION). See also section 3.6 Serial port.
➄ CONTROL: This 25 pin Sub-D (female) port makes it possible to remote
control the LogiBit amplifi er via external contacts and an
external potentiometer. See also section 3.5 Control port.
➈
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9
14
15
16
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19
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20
➅ OPTIONS: Here it is possible to attach a module including 3 microphone-/
line-inputs, a module for two TOA WTU 860 diversity receivers
(37 MHz) or two TOA WTU 4800 diversity receivers (800 MHz).
See installation of options in section 3.2 Options.
➆ TAPE IN: The two phono connectors make it possible to connect an
external unbalanced line signal.
➇ TAPE OUT: TAPE OUT is two separate phono connectors L and R with an
unbalanced line signal similar to the signal from the teleloop
output.
➈ CH 1 & 2: CH 1 & 2 are two electronically balanced XLR line or micro-
phone connections, that make it possible to connect external
balanced signals. The XLR connector is connected by pin 2
high(+), pin 3 low(-), and pin 1 ground (GND).
➉ PAD: Press the PAD switch in to reduce sensitivity by 30 dB, so that
the signal is a standard line input. Press the PAD switch out and
CH 1 & 2 are standard microphone inputs.
TRIM: TRIM control compensates for the input signal strength on CH
1 & 2. The trim potentiometer is adjusted, so that the +10 dB
does not light constantly. The light should only blink during loud
passages otherwise the signal is too high.
PHA PWR: When this switch is active, it gives a +15 volt Phantom Power to
input CH 1 & 2. NB! Only use Phantom Power for microphones
that requires it, otherwise there is a risk that the equipment
can be damaged.
These features are not active in the LogiBit 1200. They are only
active in the LogiBit 1260.
SQ2B: The red diode shows, when receiver 2 uses antenna B.
SQ2A: The green diode shows, when receiver 2 uses antenna A.
SQ Adj 2: This is a trim control, used to adjust the squelch on receiver 2.
See also section 3.2 Options under Squelch.
Ant B: The antenna port is used by both receiver 1 and 2. See also
section 3.2 Options under Installation of external antenna.
Ant A: The antenna port is used by both receiver 1 and 2. See also
section 3.2 Options under Installation of external antenna.
SQ Adj 1: This is a trim control, used to adjust the squelch on receiver 1.
See also section 3.2 Options under Squelch.
SQ1A: The green diode shows, when receiver 1 uses antenna A.
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Features on the Back Panel
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SQ1B: The red diode shows, when receiver 1 uses antenna B.
3.2 OPTIONS
WARNING! Before starting any of the following instructions the power cord
must be removed from the main power supply socket and the
installations should only be undertaken by qualifi ed personnel.
Removing the Remove the 3 screws on the top of the amplifi er. Place the tip of
blank panel: a screwdriver in the hole in the panel and pull downwards
carefully. The panel can then be pulled out (see fi gure below).
Installation of Remove the blank panel as shown above. Install the WTU tuner
WTU module: module as shown below.
LogiBit 1200 manual
Features on the Back Panel
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Install thereafter the console in the LogiBit amplifi er. Make sure
that the connections on the console and the amplifi er fi t into
each other. Finally screw in the 3 screws in the top panel of
the amplifi er.
Installation of aerials Assemble the two aerials (YW570 75 Ohm), and install the BNC
on the WTU console: aerial sockets on the console. The aerials should be at an angle
of 90 degrees from each other to give maximum coverage. The
2 aerials cover both receiver 1(REC1) and receiver 2 (REC2).
Installation of When installing external aerials (YW570 75 Ohm) with cable
external aerials: length of up to 30 meters, the cable should be RG-59 type and
have an impedance of 75 Ohm. Cables longer than 30 meters
should be type RG-11. The aerial should be mounted high and
free on the wall. The aerial, cable or receiver should not be
placed near high frequency noise generating equipment, for
example, fl uorescent lights or computers. Aerials should be at
least 8 meters from each other if installed in the same room
to give the best possible coverage. There should be a minimum
of 3 meters between an external aerial and a receiver.
Squelch: The squelch on receiver 1(REC1) and 2 (REC2) can be adjusted
with a small screwdriver on the trim control. Turn the trim
control fully to the left and the receiver is least sensitive, i.e. it
requires high levels of noise to activate the receiver. Turn the
trim control fully to the right and the receiver is most sensitive,
i.e. it only requires low levels of noise to activate the receiver.
Installing 3 extra Remove the blank panel as described in point 2 (Removing the
microphone/line inputs: blank panel) in section 3.2. Install the console in the LogiBit
amplifi er as described in point 3 (Installation of WTU module)
in section 3.2. Make sure that the connections from the console
and the amplifi er fi t in each other. Finally screw in the 3 screws
in the top panel of the amplifi er.
3.3 INSTALLATION OF FRONT TO 19” RACK:
Remove all 4 screws from the front of the amplifi er. The existing
front can then be removed. The new front can now be installed
using the 4 original screws.
3.4 FUSES AND 115/230 VOLT AC EXCHANGER:
The fuse compartment can be opened by placing a screwdriver
under the fuse compartment and pressing the screwdriver down
carefully. Use a 4 AT fuse for 115 volts and a 2 AT for 230 volts.
If the equipment is connected to 115 volts turn the voltage
exchanger in the fuse compartment to show 115. Likewise at
230 volts turn the exchanger to show 230. Then reinsert the
fuse compartment.
LogiBit 1200 manual
Features on the Back Panel
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Pin 1
Pin 14
3.5 CONTROL PORT:
Control port connections: Microphone and line-in 1-5 are switched on, when the external
contacts are connected.
Line-in 1 is connected from pin 14 to pin 1.
Line-in 2 is connected from pin 15 to pin 2.
Line-in 3 is connected from pin 16 to pin 3.
Line-in 4 is connected from pin 17 to pin 4.
Line-in 5 is connected from pin 18 to pin 5.
Toggle wireless microphone When the start-up in menu is “ON”, the wireless microphones
1 & 2: are on, when the amplifi er is switched on. When start-up in
menu is “OFF”, the wireless are off, when the amplifi er is
switched on.
Contact to microphone 1 is connected from pin 19 to pin 6.
Contact to microphone 2 is connected from pin 20 to pin 7.
When the contact is activated:
If the wireless microphone is switched on when the contact
is activated, the microphone will switch off.
If the wireless microphone is switched off when the contact is
activated, the microphone will switch on.
Wireless microphones The diodes indicate, whether the signal from the wireless
1 & 2 diodes: microphones can be heard on the teleloop output. If the diodes
light, the signal can be heard. If the diodes do not light, the signal
can not be heard.
Diode for wireless microphone 1 is connected from pin 24 to
pin 12. Diode for wireless microphone 2 is connected from pin
21 to pin 8.
Resistance value is 1.2 kΩ. If more diodes are connected to
the individual wireless microphones, they should be parallel
connected with the fi rst diode on the amplifi er’s control port.
LogiBit 1200 manual
Features on the Back Panel
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Pin 1
Pin 6
AGC remote: When the external contact is activated and REMOTE in the
menu is “ON”, AGC is switched off and the AGC diode is
turned off. The contact is connected from pin 22 to pin 9.
Power led on: The diode lights when the amplifi er is turned on. The diode is
connected from pin 25 to pin 13.
3.6 SERIAL PORT
Serial plug connections: Pin 1, 4, 6, 7 and 9 are not used.
Pin 2 receives data, input.
Pin 3 transmits data, output.
Pin 5 is ground.
Pin 8 programming pin to upgrading software.
The cable on pin 8 should only be plugged in when upgrading
software, otherwise all software is lost. See the cable
connections below.
LogiBit 1200 manual
Features on the Back Panel
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4. SAFETY INFORMATION
WARNING: During normal use of the amplifi er there is up to 100 volts on
the teleloop LA OUT on the back of the amplifi er. To avoid
electric shock, do not open the unit.
WARNING: To reduce the danger for electric shock, the unit should not be
exposed to rain or moisture.
CAREFUL: This terminal is used only as a common ground of the units to
avoid unwanted noise between the units.
The amplifi er should not be covered. There should be free air
circulation during use. Minimum distance to the unit should be
15 cm over, 2 cm under, and 5 cm to the ventilation grills on
the side of the amplifi er.
5. APPROVAL
CE approved: The amplifi er is CE approved in conformity with EMC and LVD
directives.
LogiBit 1200 manual
Safety Information & Approval
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6. BLOCK DIAGRAM
LogiBit 1200 manual
Block Diagram
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7. SPECIFICATIONS
7.1 TECHNICAL DATA
Band width: 100 Hz - 5 kHz
Distortion: <1.0%
Cross talk: < 60 dB
Signal-noise ratio: > 64 dB
AGC:
Long time average:
Attack time: 1-2 sec.
Release time: 10-15 sec.
Maximum amplifi cation: 12 dB
Maximum attenuation: 20 dB
Limitter:
Attack time: 1.5 ms (typ.)
Release time: 120 ms (typ.)
Attack level: +12 dB
Sensitivity:
Microphone in: 1.8 kohm/-64 dBu (0,5 mV)
Line in: 2.5 kohm/-34 dBu (15 mV)
Tape input: 47 kohm/-10 dBu (150 mV)
Tone control:
Bass: +/- 6 dB
Treble: +/- 6 dB
Output level:
Tape output: 600 ohm/ -14 dBu (150 mV)
Power consumption:
Average load: 140 W
Maximum load: 330 W
Teleloop cable:
0-100 m2: 1 vinding 0.75□/20 AWG
100-150 m2: 1 vinding 1.5□/16 AWG
150-600 m
2
: 1 vinding 2.5□/14 AWG
600-1200 m2: 1 vinding 5□/12 AWG
The impedance of the loop wire should be minimum 0.5Ω.
Cover area: Up to 1200 m
2
(with reference to NSH
Requirement specifi cation for
induction loop amplifi ers, 2nd
edition 29.10.1999)
LogiBit 1200 manual
Specifi cations
17
LogiBit 1200 manual
Specifi cations, Special Functions, & Options
Dimensions:
Height:
without 19” front plate: 82 mm/3.23”
with 19” front plate: 88.9 mm/3.5”
Width:
without 19” front plate: 430 mm/17”
with 19” front plate: 483 mm/19”
Depth: 270 mm/10.7”
Weight:
Basic model: 9.5 kg
3 x balanced input module: 0.25 kg
2 x WTU module: 0.50 kg
Colour: Black
7.2 SPECIAL FUNCTIONS
· 2 electronically balanced microphone or line-inputs
· 30 dB pad control and 40 dB trim function for each microphone and line-input
· +10 dB peak LED for each microphone and line-input
· +15 volt phantom power option for each microphone input
· Bass and treble adjustment
· Manual mute of selected input via keys on front panel
· Remote mute of selected input via contact closures
· Tape input and output
· Selectable operating voltage 115/230V
7.3 OPTIONS
There is the possibility to build-in the following:
· PA module:
3 x 30W or 1 x 50W selectable (8Ω)
14 band equalizer
2 patch jack
2 x 100V output transformers
· Wireless modules:
2 x TOA WTU 860 diversity receivers (37 MHz)
2 x TOA WTU 4800 diversity receivers (800 MHz)
· Microphone/line module:
3 electronically balanced microphone or line-inputs.
Pad control and trimmer function for each microphone and line-input.
Peak LED for each microphone and line-input.
Your local dealer or service agent:
Strandvejen 58 tel: +45 3917 7101 e-mail: info@phonicear.dk
2900 Hellerup, Denmark fax: +45 3927 7900 web: www.phonicear.dk
# 9 001 006 060
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