TOA Electronics W-906A, W-912A CAUTION

Step 8. Input connections

•This unit has six INPUT PORTS for plug-in modules. Select the desired modules for each application.

•Plug the modules into INPUT PORTS, sliding them between the guide rails, and secure each with two screws.

•When not all INPUT PORTS are occupied, cover the vacant PORTS with back panels, and secure them with

screws.

•PLUG-IN MODULES are provided in the following:

Modules should no be inserted or removed

while the amplifier is turned on.

CAUTION

Signal tone generator module (with presettable output level control)

· 1 kHz sine wave

· Yelp and buzzer

· One-tone chime and continuous one-tone chime

Balanced low impedance microphone preamp. module (with presettable low-cut

filter, high-cut filter and gain controls)

S-01

S-02

S-03

H-01, H-21

Balanced low impedance microphone preamp. module (with presettable low-cut

filter, and gain controls)

H-02, H-22

Unbalanced high impedance microphone preamp. module (with presettable low-

cut filter, high-cut filter and gain control)

H-03

Unbalanced high impedance auxiliary preamp. module (with presettable gain

control)

X-01, X-11, X-21

Balanced 10 kΩbridging transformer module B-01, B-11

Balanced 600 Ωline matching transformer module L-01

Balanced paging input module (with presettable gain control and MUTE Delay) I-01

Balanced 600 Ωline output module (with presettable gain control) T-01

Equalized mag. phono preamp. module (with presettable gain controls) E-01, E-11

·With H-21, H-22 and X-21 modules employing volume remote control functions, connecting a

potentiometer (10 kΩ) to the terminal of any of these modules permits the sound volume to be remotely

controlled by means of the connected potentiometer.

·E-11, X-11 and B-11 modules incorporate muting functions. If a switch is connected to MUTE TERMINAL

on the rear panel of the amplifier and closed, these input signals can be muted.

·T-01 is used to feed out mixed signals to external equipment.

·T-01 should be inserted only in Input Port 5 or 6. (See the supplied "NEW 900 SERIES MODULES"

manual for details.)

Unite these cables to allow free rotation of the amplifier.

Note

Use modules with suffix "S" for standard input port.