Specifications

Power Connections
1. Make sure the 24 Vdc power supply is unplugged.
2.
Connect the minus (-) side of the power supply to terminal #19 of
the RC-2 Pro interface.
3.
Connect the positive (+) side of power supply to terminal #20 of the
RC-2 Pro interface.
4.
Plug in the power supply. The Power light should glow RED.
5. Turn off the power supply while making other interface connections.
Connecting to the Paging System
The Digital Feedback Eliminator is typically installed between the
telephone system and the paging system, as is shown in Figure 2-2. It
interfaces with the paging controller in a zone paging environment, and
with the amplifier in a single-zone installation.
HOST SYSTEM PAGE PORT
FEEDBACK ELIMINATOR
TIP
11
RING
12
1
AUDIO IN
LINE OUT
COM
RPLAY
RECORD
RCOM
7 YELLOW
C1
x
2
x
6
9
x
RCOM
+24 VDC
RBUSY1
-24 VDC
DRY LOOP CLOSURE
"BUSY" CLOSURE
BACK TO HOST
SYSTEM
PAGING SYSTEM
14 GREEN
TIP
13 RED
RING
6 BLACK
GND
20
19
–
+
24 VDC POWER SUPPLY
Figure 2-2. Digital Feedback Eliminator Connections to Telephone System and Paging
2-6
Installing the Hardware