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E-11, X-11,  L-11, B-11 Series, H-31 and H-32 (with mute)

Connections

(M-900A, A-903A, A-906A, A-912A)

Operation

When the switch is closed,,

a. the signal fed to E-11,  X - 1 1 ,  L-11  and B-11  are attenuated by

approx. 60dB.  Accordingly a  microphone can  have a  priority at a
time of announcement.

b.  the signal fed to  H-31  and H-32 are delivered to the amplifier.

(While the switch is opened, the signals are attenuated.)

 L-41  (with  signal  activated muting facilities)

When this module accepts the input  signal, the  mute  terminal  is

grounded automatically without  connection of the remote switch

to the MUTE TERMINAL. It causes the other modules with  mute
function, like  X-11, to  be  muted.

Accordingly the signal fed to the  L-41 can 

have 

priority.

 H-21,  H-22 and  X-21  (Remote volume control  facilities)

Operation

Preset the gain  control of module and  the  input volume control of

the corresponding  input so that an appropriate sound  level  may be

obtained through the remote volume  control.

  T-01  S E R I E S  (BALANCED 600-ohm LINE OUTPUT MODULES)

This series of modules, of rated output level 1 volt, is used for

transmitting mixing signals of amplifiers to external equipment and
as a  REC out.

It is provided with a presettable gain control.

T-01 Series should be used exclusively for TOA 900 series, A-903A,

A-906A,  A-912A and  M-900A.  Use it only in  Input Port #5 or #6 of

the above models.  It will  not operate when connected  into other

PORTS.

Approx. 5 seconds after  power  has been supplied to these modules,

the output signal  is transmitted.

 S-01  ( 1 , 0 0 0 H z  SINE  W A V E )

It is operated by closing the  remote

switch.

Each signal  is generated by closing cor-

responding remote switch.

 S-03  (ONE-TONE  CHIME  AND  CONTINUOUS  ONE-TONE

CHIME)

CONNECTIONS

By closing the remote switch,  chime

sounds  once.

By closing the remote switch, one-tone

chime sounds continuously during the

closure of the switch.

Operation and Connections

  ( P l u g - i

n

 Modules

)

— 11 —

Содержание M-9000

Страница 1: ...or magnetic phono inputs the X 01 series and X 11 series Auxiliary Preamplifiers for high level sources the B 01 series and B 11 series Bridging Transformers for bridging high impedance lines the L 01...

Страница 2: ...if the output level is 18dBm Usually set the switch to 4dBm position since the amplifier s rated output is 4dBm Place it in 18dBm position when more output is provided Item Name Function Description...

Страница 3: ...and X 21 modules employing volume remote control functions connecting a potentiometer 10k ohms to the terminal of any of these modules permits the sound volume to be remotely controlled by means of t...

Страница 4: ...NE QUALITY When adjusting tone quality place the TONE SWITCH in IN position thus activating the BASS and TREBLE CONTROLS Each control provides frequency response characteristics of flat in center boos...

Страница 5: ...on receipt of the amplifier shipment please inspect for any damage incurred in transit If damage is found please notify your local TOA representative and the transportation company im mediately State...

Страница 6: ...Block Diagram M 900 A 5...

Страница 7: ...30 mW to 600 ohms 200 mW Aux Balanced 10k ohms 2 dBm Less than 1 5 dB no load to full load Master volume min 90 dB Master volume max 77 dB Bass 10dB at 100 Hz Treble 10dB at 10 kHz 6 Input gain contr...

Страница 8: ...ith TOA INTERCOM SYSTEMS It accepts paging signals from the intercom station A group of special signal generating modules is also available for catching attention before announcement and testing withi...

Страница 9: ...dB oct max attenuation MUTE DELAY CONTROL I 01S HIGH CUT FILTER CONTROL 4 2kHz 6dB oct max attenuation This provides flat characteristics at full CW position and attenuation in low frequency by turnin...

Страница 10: ...Block Diagrams Plug in Modules 10...

Страница 11: ...trol of the corresponding input so that an appropriate sound level may be obtained through the remote volume control T 01 SERIES BALANCED 600 ohm LINE OUTPUT MODULES This series of modules of rated ou...

Страница 12: ...nd T Lines R line Approx 9mA DC plus audio signals of 30dBm max T line Approx 9mA DC Rack mounting Brackets Perforated Panel Silver Silver PF 911 MB 931A MB 921A A 912A A 903A P 906A P 912A P 924 HOW...

Страница 13: ...Schemiatic M 900 A...

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