Studio Technologies 230 2008 User Manual

Page 25

Model 230 User Guide

Issue 7, October 2008

Studio Technologies, Inc.

Page 25

Four modes are available:
• Disabled: In this mode the talkback 2

button is disabled. The exception is if

the auxiliary relay is conﬁgured to follow

the status of talkback button 2. In this

case the button will control the relay;

no other functions will be impacted.

• Talk to talkback output: In this mode the

talkback 2 button will control the routing

of audio to the line-level talkback output.

• Talk to intercom interface pin 2: In this

mode the talkback 2 button will control

the routing of talkback audio to pin 2 of

the intercom interface. Pin 2 is channel 1

of an RTS TW intercom system.

• Talk to intercom interface pin 3: In this

mode the talkback 2 button will enable

the routing of talkback audio to pin 3 of

the intercom interface. Pin 3 is channel

2 of an RTS TW intercom system. For

a single-channel Clear-Com intercom

system it will be channel 1.

Headphone Output Operating Modes
The user is provided with two rotary level

controls (“pots”) that are associated with

the headphone output. Switches SW4-1,

SW4-2, and SW4-3 are used to conﬁgure

the way the controls function. With just

these three switches a wide range of oper-

ating modes can be conﬁgured. Carefully

reviewing the capabilities of the available

functions may prove worthwhile.
Dual-Channel or Stereo Mode
Switch SW4-1 is used to select whether

the controls provide a dual-channel

(“level/level”) or stereo (“level/balance”)

mode of operation. In the level/level mode

the two controls operate independently,

each controlling the level of one of the

headphone output channels. This mode

is generally used for on-air broadcast

applications where independent cue

signals are provided to the left- and

right-headphone channels. In the level/

balance mode the left control sets the

overall output level for both headphone

channels. The right control is used to ad-

just the balance (the relative levels) of the

left and right channels. This mode is gen-

erally best suited for applications where a

stereo cue source is being provided.

Figure 14. Headphone control mode settings

Figure 13. Talkback output 2 function mode

settings

Reverse Left/Right Mode
Switch SW4-2 is used to select whether the

rotary controls are in the normal or reverse

left/right mode of operation. When selected

to the normal mode, and level/level mode

is also selected, the left control adjusts the

level of headphone output’s left channel.

(This is the signal that appears on the tip

lead of the ¼-inch 3-conductor jack.) The

right control adjusts the level of the right