CST-2120 公共广播系统音频变压器快速使用指南 - Rackcdncom.PDF

CS Commercial Solution Series CST-2120 Public Address System Transformer Module Quick Start Guide 公共广播系统音频变压器 快速使用指南 Introduction The rack-mountable JBL Commercial® CST-2120 transformer • Providing two channels of impedance matching and volt- module provides impedance and voltage matching from the age matching for “Constant Voltage” operation. CSA-2120 amplifier (with 4 ohms or 8 ohms outputs) to drive • Providing 70V and 100V output when used with CSA-2120 70V and 100V distributed speakers systems. amplifiers This unit allows the CSA-2120 amplifier without direct 70V or • Allowing CSA-2120 amplifiers to be easily integrated into 100V output capability to drive distributed speaker systems distributed systems designed to operate at those voltages. • Detachable Phoenix-style input and output connectors Installation A CAUTION: Before you begin, make sure that the amplifier is disconnected from the power source and all level con- trols are turned completely down (counter-clockwise). 1. If you need to mount the transformer module to rack, use a standard 19-inch (48.3-cm) equipment rack (EIA RS-