Philips SM30 sound management system ds

Philips SM30 sound management system ds
 | DataSheet |
m Microprocessor controlled
m User friendly allowing specific
functions to be easily and
speedily programmed
m System expansion made easy and
economical due to a large range
of plug-in modules
m 48 Volt emergency battery
power supply connector
= EEPROM user's data storage
The SM30 Sound Management System is
a highly sophisticated professional public
address facility controller, incorporating
all the necessary interface circuitry for the
comprehensive range input and output
modules. The system has been designed to
meet commonly requested public address
A Call Station, including a high quality
cardioid electret condenser microphone,
keypad buttons, and function keys, allows
the operator to route and transmit calls,
announcements, music, and alarm signals.
A system of priorities has been drawn up
to cope with conflict situations when a
call is requested from two Call Stations
Up to 36 loudspeaker zones can be
selected all together, with several zones
combined, or individually by typing in the
zone number.
Security Systems
SM30 Sound
Management System
The SM30 system is intended for use with
2 separate channels. One channel will
amplify the “call” signal, and the other
one the “music” signal. This allows the
music to be transmitred without
interruption, when a call is made to other
loudspeaker топе.
To fulfil the need of amplified power,
more amplifiers can be installed.
Since the SM 30 system is controlled by a
microprocessor, it is particularly flexible
and the specific functions can easily be
programmed or changed by non-technical
personnel. All signal switching and
routing procedures are carried out by the
software, so that wiring problems are kept
to a minimum.
[In order to meet the various application
needs, a range of plug-in modules art
available. The modules slide in and out
quickly, making the SM30 system simple
and inexpensive to assemble, to install,
and to maintain.
The SM30 system has a pilot tone signal
which can be used for the surveillance of
power amplifiers and their output devices.
A signal tone generator produces more
‘than 40 chime, attention, and alarm
signals. These signals can be programmed
to precede a call or pre-recorded message,
or to be activated independently if
The SM30 system can be programmed by
using the programming keys and the LCD
Display on the front panel. The
programming menus are presented in the
selected language.
Normally the Power Supply Module is
connected to the mains, but a 48 V DC
emergency battery supply connector is
LBB 1280
A ‘Delayed Power On’ function is
available to save battery power by
switching on amplifiers of the SQ45
range, only when a Call is made.
Since the user's dara is stored in an
EEPROM, a battery back-up facility is
System Operation
A public address sound distribution
system comprises a Control Centre, Call
Stations and power amplifiers. The
amplifiers feed the loudspeakers located in
geographical and/or functional zones
where people must be reached with
background music, announcements, pre-
recorded messages, and alarm signals. The
SM30 system is designed to handle calls
and music simultaneously by using a rwo-
channel amplifier system. When a call is
made to a particular zone or combination
of zones, music playing in remaining
zones will not be interrupted.
A system of priorities has been developed
to cope with conflict situations. For
example, when a person attempts to make
a call when another call is being made by
someone with a higher priority, the new
call will not be switched through.
The SM30 system can be fed by input
signals from call stations, microphones,
music sources and a built-in pre-recorded
messages card.
The routing of an inpur signal is started
by pushing a Numeric Keypad key or
Function Key on a Call Starion, closing a
built-in microphone switch, or closing a
contact of a remote detector device.
A maximum configuration of the SM30
system contains up to 6 Call Stations and
a maximum of 18 loudspeaker zones, or 3
call stations and up to 36 loudspeaker
zones to be selected individually.
The Call Station is the primary input to
the SM30 system. When a call is
activated, the following actions are carried
out. The desired zones are selected by
pushing the Numeric Keypad keys. The
microprocessor detects which keys are
pressed and, if another call is being
handled at that moment, it checks the
priority of the new call. If the new call has
a lower priority, it will be ignored. If the
new call has a higher priority, the original
caller will be overridden. After this, the
microprocessor checks which chime tone
and/or pre-recorded message has been
programmed to precede the call. Music is
muted in the selected loudspeaker zones,
the programmed announcement tone or
message will be transmitted, the
microphone is switched on and the call is
transmitted. Pre-programmed control
relay contacts can activate override relays
in the loudspeaker enclosures to secure
full volume level during transmitting.
At the end of the call, the PRESS-TO-
TALK key is released and the music will
return at its original volume-level.
4 Function Keys are provided on the Call
Station to route a call to a pre-
programmed selection of zones. The call
can be programmed with functions such
as priority, attention signal, message, zone
combination and control relay operation.
Alternative functions may be given to a
Function Key, such as music source select,
volume up, down and mute, control relay
switching or toggling and music routing.
Microphone calls can be programmed
with the same functions as a Call Station.
However, the routing to a zone
combination has to be pre-programmed.
Control Input ‘calls’ can also be
programmed with the available functions,
depending on the specific input number.
With the Direct Routing function, the
control inputs can directly activate the
zone relay modules of the pre-
programmed music or alarm zones. For
instance, an external fire detection contact
connected to the control input, activates
the corresponding alarm zone. If the fire
expands to more buildings, the alarm
zone in question will be switched in
The SM30 system provides the user
with more than 40 pre-programmed
signals. All these signals are available ro be
programmed in various routing
Chime si
The 1,2,3 or 4-tone chimes are available
in two versions. In the first version, a
chime tone stops when the activating key
is released. The second version allows the
chime to finish its cycle, even if the
activating key is released.
Attention signals
Available signals are: fast whoop, two
tone, crash signal, fire attention, etc. Ап
attention tone stops when the activating
key is released or at the end of the signal.
Alarm signals
All but two alarm signals are available in
two versions: signal duration 60 seconds
and continuous. Alarm signals are
continuously transmitted, even though
the activating key is released.
However, an alarm signal can be
terminated at any time by the operator by
pressing the activating key again.
In order to conform with certain
European military requirements, an alarm
signal can be interrupted by a call with a
higher priority. After releasing the call key,
the alarm signal will return for the
programmed duration.
Examples of available alarm signals are:
DIN alarm, Muster alarm, 1 kHz tone,
Morse “F”, Fast or slow whoop, specific
military alarm signals.
Pitot Tone
Line Output Module
AUX | Music Input
AUX 3 Module
Call Sration
Module |
Call Station
Module J
Module |
Control Rey
Chime -
Arvention -
Akar -
Signals -
Zone Relay С] Zone |
Module | |
| Zones
Cl zone 12
Cl zone 13
Zone Relay
Module 1
Zone Relay
Medule 3
Control Relay
Module |
Power Supply "vu
Hv DiC
Zone Relay =
Module 4 |
ug Zone 24
| Zone25
C] Zone 30
ng vn
С] Zone 36
Power Supply Xs
Unit 48v DC
Zane Relay
Madule 5
Zone Relay
Module &
bt San on
The Control Centre and Module Frame
houses the various printed circuit boards
and plug-in modules.
The Interconnection Board includes 12
slots in which the plug-in modules can be
fitted, The Basic Control Centre is
delivered with the Line Output Module
and the Power Supply Module. All the
other modules have to be supplemented
in the contral centre or module frame in
their own pre-designated locations. The
connections berween the modules and the
corresponding ‘input’ and ‘output’
equipment can be made by using standard
plugs and screw connector blocks.
The Control Centre is delivered with 19-
inch brackets, and without cover ready
for mounting in to a 19” rack. For rable-
top applications a cover can be ordered
under type No. LBB 1349/30. A set of
blanking plates can be ordered under type
No. LBB 1292/00 to blank-off any empty
Power supply module
The power supply module has a standard
mains supply plug plus an emergency
battery supply connector.
In cases in which the mains supply is
unreliable, and the SM30 system is used
for security, alarm and/or evacuation
purposes, an emergency battery power
supply of 48 V DC can be used. This
supply can be switched in automatically
whenever the mains power fails.
Interconnection board
All of the interconnections between the
plug-in modules take place automatically
when they are installed. Each module has
its own place in the cabinets. Misuse in
other slots will Case по damage to any
part of the system.
Line output module
This module interfaces all the audio input
signals and the system signal tones to the
There are separate outputs tor the ‘music’
and the ‘call’ channel.
Output Volume Level
Two separate controls allow adjustment of
the output volume signal level ot both the
Alarm and the Chime/attention signals.
The built-in 20 kHz pilot tone signal can
be used for amplifier surveillance
purposes. The signal can be switched
on/off and the volume level can be
Display and Keyboard
Microprocessor Board
Interconnection Board
Power Supply Module
Line Output Module
Users Manual
The optional modules are:
- Microphone Input Module
- Call Station Input Module
- Control Input Module
- Recorded Message Module
- Music Inpur Module
- Zone Relay Module
de Control Relay Module
The optional accessories are:
- Call Station (18 zones)
- Call Station (36 zones)
i Microphones (with call switch)
5 Set of slot blanking plates
The Basic Control Centre LBB 1280/40
a Module frame for extended systems
- Top cover plate for table-top use
LBB 1282/00
LBB 1283/00
LBB 1284/00
LBB 1285/00
LBB 1286/10
LBB 1287/00 - LBB 1287/10
LBB 1288/00
LBB 9568/30
LBB 9568/36
LBB 9517/00
LBB 9520/00
LBB 9094/00
LBB 9090/00
LBB 1291/40
LBB 1292/00
LBB 1349/30
Amplifier Switching Relay
[n a one-channel amplifier configuration,
this relay can be programmed to activate
the SQ45 amplifier priority relay.
Display and keyboard
The User Programme is a shorter version
of the Installer Program. It is intended to
allow the user, without the help of an
expert, to alter priorities, routing, etc.
whenever his needs change. The
programming menus are available in
various languages.
Programming Keys
10 Programming Keys enable the installer
to programme the SM30 system to suit
the system configuration and the specific
needs of the user. lluminared LEDs
indicate which keys can be used ar the
current stage of programming.
In the normal ‘run’ mode, the
alphanumeric LCD Display indicates the
name of the current music source and the
volume level. In the programming mode,
the display will enable the installer and
user to obtain all the necessary information.
Music Function Keys
In the normal ‘run’ mode, 4 Function
Keys allow the operator to select music
source, to adjust the volume level up or
down, and to mute the music.
Microprocessor board
A microprocessor PCB controls the SM30
system. Also included is a signal
generator, which is already encoded with
more than 40 chime/attention rones and
alarm signals. They can be programmed
to precede a call, a pre-recorded message,
or to be activated independently.
Call Station LBB 9568/30 or
Call Station LBB 9568/36
The Call Station of the SM30 system 1s a
desktop unit which presents the operator
with a logical, comprehensive, and easy to
use method of routing and transmitting
calls, alarms, announcements, and music.
As an option, the Call Station can also be
semi-flush mounted.
Up to 6 Call Stations, or 3 extended call
stations can be connected in the
maximum configuration of the SM30
The wide range of features includes:
Phantom powered cardioid electret
condenser microphone of high quality
with a built-in bass roll filter giving a clear
voice reproduction, even in difficult
ACOUSTIC environments.
Numeric Keypad
Allowing individual selection of up to 18
loudspeaker zones in a standard system,
and up to 36 zones in an extended
system, by typing in the zone number.
Each zone has its own Zone Selection
Indicator LED. A Recall Key repeats the
last keypad selection.
Function Keys
With a Function Key a call can be routed
to a pre-programmed selection of zones,
saving a grear amount of time when an
operator has to frequently call the same
zones, or when an “ALL CALL” must be
made in emergencies.
Each function key may be programmed
for different tasks as:
m routing a low priority call, preceded
by an attention tone, to several
frequently used loudspeaker zones.
m routing an alarm tone, followed by a
pre-recorded evacuation message, to
all loudspeaker zones
m toggling a control relay on and off
which switches a warning lamp, etc.
m selecting a music source, turning the
music volume up/down, and muring
the music.
m Music routing
Whenever a function key is pressed, the
relevant Function Key LED and the
relevant zone LEDs illuminate.
Press-to-talk Key
Activates a call after the zones have been
preselected by means of a Keypad or
Function Key.
The way in which a call is executed
depends on the programmed type of
signal and/or message:
m A normal call without attention tone
or message will reset when the key is
m À call with attention signal and/or
non-repeating message will reset when
the key is released.
m À call with attention signal and
repeating pre-recorded message will
continue after the key is released. If
you press the key for a second time,
the attention signal will stop
immediately and a pre-recorded
message will stop at the end of the
m A call with alarm signal will continue
after release of the key and can be
stopped by pressing the key a second
Busy LED
LEDs are provided to advise the operator
whether a call may be activated or the call
is accepted.
The red ‘Busy’ LED flashing means that
another call is in progress.
The red ‘Busy’ LED lighting up
continuously indicates that the call has
been blocked by another call with a
higher priority.
Wait/ Talk LED
The green “Wait LED Hashing indicates
that the call is accepted, and the attention
tone or pre-recorded message is being
The green “Talk LED lights up
continuously when the attention tone or
message finishes and the microprocessor
switches on the microphone to enable
speech broadcast
LED Intensity Preset
To compensate for various local lighting
conditions, the illumination intensity of
the LEDs can be adjusted.
Built-in Compressor
Helps to keep the signal output level of
the Call Station constant, even in
situations where the operator's speech
volume level changes radically. The degree
of compression depends on the
microphone preamplifier gain setting, It
can be preset over a range of 30 dB from
84 to 114 dB (SPL).
Balanced Line Level Output
Allows Call Stations to be located up to
1000 metres from che Control Centre.
Loudspeaker Zone Template
À paper template is provided, onto which
the names of the loudspeaker zones can be
LBB 9568/30
LBB 9568/36
Microphone Input Module
LBB 1282
Each Microphone Input Module allows
two high quality hypercardioid or
dynamic microphones to be connected to
the Control Centre. In total up to 3
Microphone Input Modules and/or Call
Station Input Modules may be used.
Remote Switching Function
The SM30 system uses the remote
switching facility of microphones. The
built-in switch can activate a call,
including all the functions available
(priority, routing, attention signals, etc.).
Input Selection
Selection of the Microphone Input or the
Line Input (line level signal) is possible by
means of a switch.
Bass-Cut Facility
[n noisy environments, the operator often
has to speak very close to the microphone
which exaggerates the microphone’s bass
frequencies. A bass-cut facility is available
to reduce the bass, helping the call to be
heard clearly. Selection of Bass Cut or Flat
Response is possible with a switch.
Gain Control
As the strength of each persons voice
differs, input gain controls are used for
lining up’ the microphones volume level
with the rest of the signal sources.
Call Station Input Module
LBB 1283
This module allows the choice of either
two standard Call Stations or a single
extended call station to be connected to
the Control Centre. The SM30 system
will accept up to 3 Call Station Input
Modules and/or Microphone Input
Modules in total.
À standard Call Station may be connected
via a cable with a length of up to 1000
metres, which contains 2 screened wires
(audio signals and powering) and 2
unscreened wires (control and data
An extended call station can be connected
using either two of the cables mentioned
Volume Level Controls
The potentiometers are input volume
level controls used for “lining-up” the Call
Station microphone volume level with the
rest of the signal sources (microphones,
attention signals, background music
players, etc.).
The controls can be set to provide a clear,
comfortable listening level for speech
signals, which are balanced with the other
amplified signals.
Control Input Module
LBB 1284
Each Control Input Module allows 8
remote make contacts to be connected to
the Control Centre.
Up to 3 Control Input Modules can be
installed in the basic system, allowing a
total of 24 contacts to be used. In
extended systems an additional 3 Control
Input Modules can be installed. When a
remote contact closes, the SM30 system
starts a series of pre-programmed actions.
Control Inputs
Each control input can be programmed
similar to the funcrions of a call from a
Call Station.
In addition, direct routing control of che
music or call relays on the Zone Relay
Card is possible via the inputs.
Control Inputs 1 to 4
Apart from the normal call activation,
these inputs may be given an alternative
function to allow remote activation of the
Music Functions.
Control Inputs 5 to 8
These inputs may be programmed to
activate control relays, whose contacts can
be used to start remote equipment, to
activate signalling, warning lamps, etc.
Control Inputs 1 to 8
These inputs can be programmed to
distribute an external audio source
connected to a Microphone Input
Module LBB 1282.
Wiring Control Inputs
A plug-in, 16 terminal screw connector
block is mounted for wiring the remote
contacts. If the Control Centre has to be
removed for some reason, the block has
simply to be unplugged and the wires
remain intact. This avoids the tedious and
risky business of rewiring the blocks.
Recorded Message Module
LBB 1285
A unique feature of the SM30 system is
its Recorded Message Module, which
allows up to 4 individual messages to be
recorded and played back as desired. The
SM30 system can be programmed so that
a message is played back either alone, or
preceding a call.
The recording is digitally stored in
memory chips, ensuring thar the qualicy
will not deteriorate for as long as the
message is in memory. If the power of the
Control Centre is switched off, a back-up
battery mounted onto the module will
enable the message to remain intact for up
to 30 days.
The maximum total recording time is 65
seconds, and up to 4 messages of varying
duration may be recorded, as long as the
sum of the duration's does not exceed the
maximum recording time. A bandwidth
of 6 kHz ensures optimal speech
Microphone Input
The 5-pole 180° DIN socket provides
phantom powering, so that a high quality
microphone of a condenser as well as a
dynamic type may be used to record a
Automatic Gain Control
A limiter ensures that, even though the
microphone signal fluctuates severely, the
message is recorded at a constant level.
Headphone Monitoring
A socket allows the recorded messages to
be monitored with a headphone, both
during and after recording.
Output Volume Control
With a volume control potentiometer the
output volume level can be “lined-up”
with the other signal sources.
Message Recording
Re-recording of messages is possible.
Safety features are provided to prevent
accidental erasure of the message.
Remote location recording of a message is
possible, as the record and monitor
functions of the module are independent
of the microprocessor of the SM30
Music Input Module
LBB 1286
An important feature of the SM30 system
is the ability to play uninterrupted music,
even though the system is handling a call
routed to other loudspeaker zones.
This module enables 3 independent
music sources to be connected to the
Control Centre.
Music Source Inputs
Three sets of double cinch sockets are
provided to connect the music sources.
The double sockets allow stereo signal
sources to be connected, using standard
double cinch/cinch HI-FI cables. The
stereo signal is mixed to mono in the
Input Volume Controls
"Three potentiometers corresponding to
the inputs are provided to adjust the
input volume level of each source
Treble and Bass Tone Controls
Treble and bass potentiometers allow
output control facilities.
They increase the level of the relevant
treble or bass frequency range by up to 10
dB and decrease the frequency range
volume level by up to 10 dB.
Music Control
The output volume level of the Music
Input Module is controlled by the 4
Music Function keys mounted on the
front of the Control Centre. Remote
control of these functions is possible via
the Functions Keys on the Call Stations
or via the Control Input Module inputs 1
to 4.
Zone Relay Module
LBB 1287
The SQ45 Amplifier output signals
return to the inputs of the Zone Relay
Module. The relays on this module can be
programmed to route the amplified call
and music signals to 6 separate
loudspeaker zones. Up to 3 modules can
be installed in the basic Control Centre,
giving the SM30 system the capacity to
route calls and/or music to 18
loudspeaker zones. In extended systems
an additional 3 modules can be installed
in the module frame, to route calls and/or
music to an extra 18 loudspeaker zones.
Coupling Zone Relays Modules
The inputs of the modules may be linked
together to the outputs of the amplifier,
so that one amplifier can feed up to 36
loudspeaker zones (maximum).
Multiple Amplifier Configuration
In an SM30 system with a large number
of loudspeakers, it may be necessary to
use extra amplifiers because the high
amplifier power required exceeds the
power available. Each amplifier can be
used to feed one Zone Relay Module
which covers 6 specific zones. However,
the module provides the possibility of
connecting two amplifiers, so that each
amplifier feeds fewer loudspeaker zones.
One amplifier will feed the outputs 1 to 4
and the other will feed the outputs 5 and
6. In this case, when 3 Zone Relay
Modules are installed for example, up to 6
‘call’ and 6 ‘music’ amplifiers can be used.
The module is fitted with 2 ‘Mate-N-Lok’
connectors. All wiring is to the plugs
provided with the module.
Control Relay Module
LBB 1288
The Control Relay Module contains 12
relays to be programmed separately. It
provides the SM30 system with a set of
make and/or break contacts for use with
volume override applications, starting
remote equipment, such as cassette
players, message loggers, etc., to activate
signalling and warning lamps, to release
fire door relays, etc. Relays 1 to 8 have
both make and break contacts. Relays 9 to
12 have make contacts only.
In extended systems, using the SM30
Module Frame, LBB 1291/40 up to two
additional Control Relay Modules can be
installed, providing a system with up to a
maximum of 36 output contacts. If relays
(25 - 36) are needed, a minor electrical
and mechanical modification is required,
if relays (13 - 24) are needed an electrical
modification only is required.
Relay 1 is reserved for the indication of
microprocessor errors.
Relay 2 is reserved for the indication of
all other internal errors in the present
Modules and Call Stations.
Relay 3 is dedicated to the Delayed Power
ON function, but may be used for other
functions. The programmable Delayed
Power On function is intended for battery
operated systems where, in order to save
battery power, the amplifiers are switched
on only when a call is made.
Relay 4 is dedicated to start an external
audio source, if that audio source is
distributed via a Control Input Module
and the audio connected to a Microphone
Input Module.
Relays 3 to 12 can be activated by
different sources and may be used for a
number of functions. Activation from a
Call Station is done whenever a call is
made, using the Keypad keys or the
Function Keys.
Relays 13 to 24 for use in extended
systems using the SM30 Module Frame.
Programmable features are as listed above,
Relays 25 to 36 for use in extended
systems using the SM30 Module Frame.
Programmable features are as listed above.
If used a maximum of 30 zones only is
Activation can also be achieved by closing
an input contact of the control input
relays 5 to 8.
А typical application of the Control Relay
Module is the activation of the
loudspeaker volume control override
relays, mounted in the loudspeaker
enclosures. These relays override the
volume control setting of the
loudspeakers to ger the full volume level
when a Call is transmitted. For this
application, the control relays are ‘locked’
to the pre-programmed corresponding
zone relays.
The module is supplied with 2 plug-in
screw connector blocks with 16 terminals.
The great advance of the connector block
is that, if for some reason the Control
Centre has to be removed, the block has
simply to be unplugged and the wires
remain intact. [his avoids the tedious and
risky business of rewiring the blocks in
their original configuration.
In a basic frame their is room for a single
Control Relay Module. In an extended
system, using an additional module
frame, room is provided for an additional
one or two modules.
Condenser microphone
LBB 9517
Cardioid microphone for desktop use
with gooseneck, including a LED
indicator anda 3-position on/off
microphone switch.
Condenser microphone
LBB 9520
Hand held cardioid noise cancelling
microphone for close ralking purposes.
Dynamic microphone
LBB 9094
A uni-directional microphone with
gooseneck mounted on a table stand.
Dynamic microphone
LBB 9090
Hand-held omni-directional microphone
for close talking purposes.
The specification relates to a Control Centre with corresponding
Microprocessor hardware
- maximum voltage deviation:
Mains supply
- voltage setting at delivery 220-230 V
- mains voltage selection range 110 V, 127 V,
220-230 V or 240 V
- EEPROM data storage time >10 years
Recorded Message Module
- dara retention >30 days
audio bandwidth
max. total recording time
- max. number of messages
- microphone phantom power
supply voltage
Audio outputs
Music input to music output
- gain:
control range
input level
output level symmetrical:
- amplifier output distorrion:
THD at nominal level
THD at max. output
amplifier S/N output
at nominal level
Call Station or Microphone
input to call output
output level symmetrical:
- Microphone Input Module:
input level
frequency response
signal-to-noise ratio
Call Station:
input level
frequency response
signal-to-noise ratio
amplifier output distortion:
THD at nominal level
THD at max. output
Music and call Output Impedance
- at 1 kHz
320 - 6000 Hz
65 seconds
> 60 dB (2 dB steps)
> 80 dB
>150 mY
0 dBV
+12 dBV
> 80 dB (flat)
0 dBV
+12 dBV
>1.5 mv
50-15000 Hz (+/- 2 dB)
68 dB (flar)
> 84 dB (SPL)
440-12500 Hz (- 3 dB)
58 dB (Har)
< 50 0
Click suppression in combination for any module
- for audio switching
- for power on/off switching
- mute by on/off switch
Pilot tone 20 kHz sinus asymmetrical
- volume preset at least
- mute by on/off switch
Communication &
Security Systems
> 60 dB
> 30 dB
> 80 dB
0.05-1 V
> 80 dB
for all selected ranges +10/-10%
however at 230 V mains + 6/-10%
mains frequency 50-60 Hz
- power consumption
at mains voltage < 90 VA
- mains fuse : T25A
- mains transformer:
temperature switch +125 °C
self restoring type
Emergency supply
The unit can be supplied from an external DC voltage
- V DC nominal 48 V @ current: <1.2 A
V DC minimum 42 V @ current: <1.2 À
V DC maximum : 58 V @ current: <1.2 À
- fuse in 48 V DC line on PCB located in housing
- polarity protection against reverse connection
Mechanical data
- 19 inch rack mounting
- weight LBB 1280
480 x 310 x 132
8.8 ke (unpacked)
Environmental requirements
Rated range of use
- ambient temperature
- relative humidity
-10 to +45 °C
- 90%
Climatic conditions during transporting handling and storage
- according to UN-D 1639/01
- temperature -40 to +70 °C
- relative humidity 5 - 95%
Y” without notice Printed in the Netherlands E
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9498 974 03313 94-52 All specifications subject
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