PAGE 13
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
DMA2015 Telpaging 01
BALANCED TELEPHONE PAGING WIRING
TIP
RING
TEL INPUT - Default Jumper Settings
TEL
G COM HOT
BALANCED
600 ohm 100 mV
The Diagram at Left shows the
Default Settings for TEL INPUT.
VOX 1 is SWITCHED ON
MUTE 1 is SWITCHED OFF
When the TEL INPUT (PHONE) is
activated the VOX 1 BUSS is ON
and it will MUTE any Input with the
MUTE 1 Setting SWITCHED ON.
NOTE: To change the
INPUT Default Settings
refer to the appropriate
section in this Manual
Telephone System
Paging Output
PAGING OUT
TEL INPUT
TEL IN
V1
VOX 1 BUSS
ACTIVATED
X
MUTE 1 BUSS OFF
Input 1 - V1 - 01
VOX SEND
MUTE RECEIVE
VOX - MUTE JUMPERS SETTING
= JUMPER
JUMPER
S203
JUMPER
OFF M1
OFF V1
S204
Fig. 13A - Balanced Telephone Input Wiring
WIRING
- The Amplifier is interface ready for the Telephone
line in applications requiring paging from the telephone sys-
tem. The Telephone line Paging Output (Tip and Ring) can
be directly connected to the TEL input and to the HOT and
COM as shown in the wiring diagram Fig. 13A
.
CABLE
- Use a two conductor twisted wire.
NOTE:
The Telephone Paging Input is a Transformer
Balanced 600 ohm input.
DO NOT GROUND THE TIP OR RING WIRE TO THE
CHASSIS OF THE AMPLIFIER
OUTPUT LEVEL CONTROL -
Use TEL OUTPUT LEVEL
Control located on the Rear panel. After wiring adjust con-
trol for the desired output level.
VOICE ACTIVATED MUTING (VOX) -
Muting of the AUX 1
- AUX 2 channels (music muting) during Paging is automat-
ic via the Voice Activated Muting System. No contact closure
for the Muting Circuit is required from the Telephone system.
For additional information on the Muting operation refer to
the Muting Functions section of this Manual.
PHONE PAGING PRIORITY OVER MICROPHONES -
Priority over any Microphone Input may be accomplished by
setting the MIC Inputs MUTE Jumpers.
KSU
Key Service Unit
DMA telpagin
Telephone
DMA Amplifier
TEL
POWER
O
INPUT 1/MIC
TEL
INPUT 3/AUX 1
INPUT 4/AUX 2
10
0
10
0
10
0
10
0
DIGITAL MUSIC AMPLIFIER
DIGITAL MUSIC SERIES
TM
DMA
BASS
TREBLE
+10
-10
+10
-10
0
0
PROFESSIONAL AUDIO & SOUND
INSTALLATION AND WIRING
Fig. 13 - Connecting to the Telephone Paging KSU
CAUTION:
TO PREVENT POSSIBLE DAMAGE TO SPEAKERS OR THE AMPLIFIER ALL INPUT CONNECTIONS MUST BE MADE
WITH THE AMPLIFIER OFF (POWER OFF).
PAGING FROM THE TELEPHONE SYSTEM
TELEPHONE SYSTEM PAGING WIRING
PROFESSIONAL AUDIO & SOUND
®
DIGITAL MUSIC AMPLIFIERS
DMA2015/2030/2060/2120
