TOA Electronics U-13R - Unbalanced Line Input Module with High/Low Cut Filters and Mute-Receive for 900 Series (Dual RCA) - Manual (Page 30)

APPLICATIONS PAGE 31
School Gymnasium Sound System
School gymnasium sound systems often have similar
requirements as the banquet room system plus
telephone paging which must override both the podium
microphone and the music.
1. Connect the Telephone Page output to a B-41S
(Balanced Line Input with Mute-Send) module.
2. Connect the Podium Microphone to an M-11S
(Microphone Input with Mute-Receive) after cutting
Jumpers J4 and J5. This configures the module for
Normally-On mute activation mode on Mute Bus #1
only.
3. Connect a switch (normally-open) between the
screw terminals Mute #2 and Ground on the
amplifier's rear panel.
4. Connect the Music Source output to a U-13R
(Unbalanced Line Input with Mute-Receive)
module.
Pressing the podium mic's "press-to-talk" switch
activates Mute Bus #2 and mutes the music. The
telephone page activates both Mute Bus #1 and #2,
muting both the podium mic and the music source.
General
1 Which module should I use for a microphone?
For a standard low impedance microphone, use the ML-11T or, for a high impedance microphone (uncommon),
use the M-03. See pages 9-12 for details on other available microphone modules.
2 Which module should I use for a wireless microphone receiver?
If the wireless receiver has a line-level output, use the B-01 or, for a mic level output, use the ML-11T. Both
types give you the flexibility to locate the receiver remote from the module, if necessary. See pages 9-23 for
details on other available microphone and line input modules.
3 Which module should I use for an AM/FM tuner, cassette deck, CD player, computer sound card, jukebox,
mixer or satellite receiver?
If the source will be less than 15 feet from the module, use the U-03R or, to respond to mute activation, the U-
13R. Both modules have dual RCA jacks for quick connection of stereo sources and high/low-cut filters for EQ
adjustment. If the music source is further than 15 feet, use the B-01 or the B-11, which accept balanced lines
and offer transformer isolation. See pages 13-23 for details on other available line input modules.
4 Which modules should I use for telephone or microphone paging with priority over a music source?
Use the B-41 for the telephone paging input or the M-41 for microphone paging. If the music source is less than
15 feet, use the U-13. If the music source is further than 15 feet, use the B-11, which accepts balanced lines
and offers transformer isolation.
5 Which module should I use for Music-On-Hold (MOH)?
Use the T-12 module which has an unbalanced line input for the MOH source plus a balanced, transformer-
isolated, adjustable output to connect to the telephone system's MOH input. The MOH signal routes to both the
internal mix bus and the MOH output. The mix bus input also responds to mute bus activation without
interrupting the MOH output. See page 25 for more information.
6 What type of potentiometer do I need for a Remote Volume Control module?
Use a commonly available, 10 k
Ω
, linear-taper potentiometer for the B-21, M-21, or U-21 Remote Volume
Control modules. Also, use the same type for the rear-panel Remote Master Volume screw terminals on A-
903MK2, A-906MK2 and A-912MK2 mixer/amplifiers, or the M-900MK2 mixer/pre-amplifier.
FREQUENTLY ASKED QUESTIONS