User Manual

Installation and Startup Guide
Rio Rancho, NM
9
Programmable Inputs
Programmable inputs are provided to enable external
control over a variety of parameters. Each input can
respond to a contact closure, a DC voltage source, or
the variable voltage output from a potentiometer. The
following illustrates common connections to the pro-
grammable input pins.
10K Linear Potentiometer
CCW
CW
+5V
To Programmable Input Pin
Gnd
Contact Closure as Programmable Input
To Programmable Input Pin
Gnd
DC Voltage Source as Programmable Input
To Programmable Input Pin
0VDC (Off) to +5VDC (On)
Gnd
Potentiometer Connection for
Analog Control of Gain
Programmable
Inputs
Programmable
Outputs
Ground
+5VDC
CODEC and TEL Remote Control Ports
These RJ-45 connectors are used with the RCWTH4
remote control module, connected with standard CAT-5
cabling. Each port is assignable to Codec 1, Codec 2 or
the telephone line.
Remote Control Ports
can be assigned to
Codec 1, Codec 2 or
the Tel LIne.
1 GND
2 Connect Button
3 Privacy Button
4 Volume Up Button
5 Volume Down Button
6 Privacy LED
7 Connect LED
8 GND
Audio Outputs
The line outputs are a balanced differential configura-
tion which can drive balanced or unbalanced inputs on
other audio equipment with the wiring shown here.
Balanced output to a balanced input is a straightforward
“pin to pin” configuration.
Destination
Output
Balanced output to
balanced destination
Shield
Balanced output to unbalanced input with a 3-wire
cable is connected with the cable shield added to the
(–) terminal on the destination input.
Destination
Output
Balanced output to unbalanced
destination – 3-wire cable
Shield
Balanced output to unbalanced input with a 2-wire cable
is connected with the output (–) connected to the cable
shield at the processor output.
Destination
Balanced output to unbalanced
destination – 2-wire cable
Output
Shield
Telephone Line Jack
Connect a standard telephone cable with RJ11 connec-
tors between the back panel Telephone Line Jack and
the host telephone system.