Overview

￿Digital microphone input level control and digital master audio level control

￿Microphone talk-over mode1

￿A CAT 5 output, with a transmission range of more than 300 feet (over 100 meters) that transmits VGA/UXGA signals2 to a remote acceptor via a receiver

￿An internal 5-Watt per channel (24kHz, 3dB) power amplifier for connecting the speakers directly to the machine

￿A panel LOCK button to prevent tampering with the front panel

￿Recall of the previous setup from non-volatile memory

￿Audio output level change (via RS-232)

3.1.2Understanding the Media / Room Controller Section

The Media/Room Controller section controls A/V equipment—especially projectors and associated equipment3—in media rooms (such as classrooms, boardrooms, or auditoriums), as well as room functions such as lights, blinds, a projector lift and/or a screen motor.

The VP-23RCMedia/Room Controller section includes:

￿Eight configurable buttons to set up any supported commands

￿An Ethernet port4 for configuration and control

￿Two bidirectional RS-2325serial ports for universal display (for example, projectors) and control of the VP-23RC(or other) switcher

￿Four relays for the simplified and centralized control of room functions (such as lights, blinds, screen settings, and so on). The relays have normally open (NO) and normally closed (NC) contacts

￿Three IR control ports

￿An IR-learner for the customized remote transmitters, without the need for an external unit IR remote control

￿Macro mode operation, for programming up to 15 commands with the press of a single button

￿Firmware upgrade support

1The microphone input signal lowers the line audio output level when the connected microphone detects sound

2Excludes audio

3Including the A/V equipment connected to the VP-23RC Presentation Switcher section

4Also for controlling the Presentation Switcher section

5The RS-232 terminal block port (item 14 in Figure 3) is also used for firmware upgrade

4

KRAMER: SIMPLE CREATIVE TECHNOLOGY

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Kramer Electronics VP-23RC user manual Understanding the Media / Room Controller Section