User manual QSC AUDIO CM16A DATASHEET

[. . . ] NETWORK AUDIO SYSTEMS Preliminary Specifications Amplifier Network Monitor CM16a Front View Rear View The CM16a Amplifier Network Monitor is a key hardware component of QSControl, QSC's Ethernet based audio network. The CM16a provides sixteen channels of gain control, monitoring, and amplifier management for DataPort-equipped QSC amplifiers. The CM16a is operated remotely by a Pentium-based PC or QSC System Controller running QSControl application software. [. . . ] The CM16a shall provide an internal Digital to Analog converter circuit. Such circuit shall be used for generating test signals and for playback of pre-recorded . WAV files. These . WAV files shall be network downloadable and storable in the CM16a's on-board memory. As with the page input, this DAC circuit may preempt any or all of the sixteen program channels. The CM16a shall provide for the storage and recall of up to sixteen different presets, numbered 0 through 15. Each preset shall be a "snapshot" of all of the CM16a functions and settings. Preset #0 shall be the default boot-up preset. OUTPUT: Configuration Maximum steady-state current Maximum switched current Ground isolation CONNECTOR: NETWORK INTERFACE PHYSICAL NETWORK: Raw data rate Frame format Connector Ethernet type Cable type Max cable length Grounding Ethernet 10 megabits per second D. I. X. (Ethernet) RJ-45 female 10BASE-T: (via RJ-45) 10BASE-T: CAT-3 (or better) twisted pair 10BASE-T: 100 m to hub Floating TCP/IP IP UDP QSC24 1 7 Amplifier Output Monitoring. For each of the sixteen power amplifier outputs, the CM16a shall provide clip detect monitoring, short/open circuit detect, voltage and current metering, amplifier headroom, load impedance, real output power to load, and audio monitoring of the voltage signal. For each of the eight dual-channel power amplifiers, the CM16a shall provide AC standby/operate mode control, AC power state indication, temperature metering, amp gain settings (front panel knob position with respect to full output), over-temperature detection, stereo/parallel/bridge-mono indication, amplifier model detection, and protect status detection (subject to the capabilities of each amplifier). For each of the sixteen program channels, the CM16a shall provide three monitor points as follows:(1) pre fader gain control, (2) post fader gain control, or (3) post power amplifier output. A channel's monitor output may be selected from one of these three signals, or it may be switched off. The signal at the CM16a's monitor output connector shall be the sum of the signal at its monitor input connector and as many as four of the sixteen channel monitor signals at one time per CM16a. A monitor gain control shall be provided for each monitor tap point to adjust the individual levels of the channel monitor signals prior to their being mixed with the monitor input signal. The CM16a shall provide one trigger contact-closure sense input which shall also be TTL signal compatible, and one dry-contact floating SPDT relay output. These shall be under software control, with functions definable by the QSControl custom software application. All CM16a functions shall be controlled and monitored via an Ethernet digital control network using the TCP/IP transport protocol and the QSC24 control and monitoring application protocol. Rear-panel connections shall be provided for 10BASE-T Ethernet utilizing a standard RJ45 Unshielded Twisted Pair Category-5 connection. [. . . ] Input connectors shall be of the "Euro-style" depluggable barrier strip type. TRANSPORT NETWORK: Internetwork protocol Transport protocol APPLICATION PROTOCOL: Version Revision RS-232 PORT CABLE TYPE PORT SETTINGS Null-Modem (a. k. a. Laplink) Bits per Second 9600 Data Bits 8 Parity none Stop Bits 1 Flow Control Xon/Xoff GENERAL PHYSICAL Height: Width: Depth: Weight Mounting: Operating Temp. : 1. 72"(1RU) 19"(standard rack mount) 14. 84"(37. 7 cm), including rear supports 11 lbs. (5 kg) Rear support recommended for portable or mobile use 0 to 50° C 100-240 VAC (Universal Supply) 1A RMS @ 120V, 1. 1A RMS @ 100V, 0. 5A RMS @ 230V 47­440 Hz AC POWER: Voltage Current Frequency Specifications subject to change [. . . ]