StudioTech 233 manual Installation and Setup, Options, System Components

Options

The Model 233’s standard resources are more than sufficient to directly support a large number of applications. But in the “real world” of audio and intercommunica- tions special needs always seem to arise. To that end, Studio Technologies offers

a number of option cards. In addition to passive or active components, each card contains an integral connector, allowing simple installation into a spare connector location on the Model 233’s back panel. For interest, the resources provided by some of these option cards are worth describing.

•The direct microphone output card provides access to the dynamic or con- denser microphone that is connected to the Model 233’s mic input. Passive components, along with the auxiliary relay contact, create a “click-free” microphone-level audio signal.

•The remote switch input card uses a

4-pin XLR connector to provide access to the Model 233’s remote switch inputs.

Other general-purpose option cards provide 3-pin XLR, 4-pin XLR, and 8-pin EtherCon® connectors. With the range of option cards available it’s hard to imag- ine an application that can’t be served. But you’re welcome to try to “stump the chumps” in the Studio Technologies technical support department! But first please check the complete list of the available option cards listed on the Studio Technologies website.

Installation and Setup

In this section interconnections will be made using the input and output connec- tors located on the Model 233’s back pan- el. Microphone, line-level audio sources, intercom, main output, and line-level talk- back output signals are interfaced by way of 3-pin XLR-type connectors. A ¼-inch

3-conductor phone jack is provided for the headphone output. A 2.1 x 5.5 mm coaxial jack allows connection of an external 24 volt DC power source.

System Components

The following is included in the shipping carton: Model 233 Announcer’s Console, user guide, button label sheet, and 24 volt DC power supply. For units shipped to des- tinations in Japan and North America the power supply will have a nominal AC mains input of 120 volts. For all other destinations a power supply compatible with 220/240 volt AC mains will be included.

Microphone Input

The Model 233 is compatible with balanced dynamic and condenser microphones. Depending on the application, the micro- phone may be part of a headset, or be an independent handheld or stand-mounted model. The Model 233’s nominal 48 volt power source will support essentially all phantom-powered microphones. The qual- ity of the Model 233’s microphone pream- plifier and associated circuitry is such that special applications may benefit from using “high-end” microphones. If selected appro- priately, models from manufacturers such as AKG, Beyerdynamic, Crown, Neumann, Sennheiser, and Shure will perform very well in Model 233 applications.

Issue 1, September 2007	Model 233 User Guide
Page 12	Studio Technologies, Inc.