User manual QSC AUDIO CM16A AMPLIFIER NETWORK MONITOR

[. . . ] CM16a Amplifier Network Monitor HARDWARE MANUAL *TD-000086-00* TD-000086-00 Rev. C ¨ WARNING ¨ While QSC has endeavored to develop and produce the most dependable and robust `network' audio product for your use, due to the myriad of network situations and equipment that may be encountered in its implementation, QSC cannot be held responsible for network conflicts and associated consequences that may result. For this reason, QSC strongly recommends that the network used for implementation of QSControl products be completely separate from all other networks, data or otherwise. As such, should you elect to integrate QSControl products with your existing network system, all risks attendant to such integration of QSControl products with your existing network or network systems are assumed by you. [. . . ] If used with a logic-type device, the low-end of the logic connection should be connected to the minus (­) terminal and the active-end should be connected to the plus (+) terminal. For the defined limits of input to this connector , please refer to the specification section. TIP- This input can be used to switch between stand-alone preset operating modes without the need of a computer. Setup for this feature is available through RS-232 or Telnet communications. CONNECTING THE RLY OUT The RLY OUT connector provides access to the internal relay's contacts for remotely controlling an external low voltage device or circuit. This internal relay is rated for 70V (DC or ACrms), 250 mA (switched) and is isolated from ground. There is one common terminal, one normally-closed contact terminal and one normally-open contact terminal. When the relay is not energized, the C terminal is connected to the NC terminal and the NO terminal is not connected; when the relay is energized the C to NC connection is opened and the C to NO connection is closed. CONNECTING THE MONITOR CHAIN IN/OUT The MONITOR CHAIN connector is a 5-pin terminal block connector. The center pin is the shield connection for both the input and output of the monitor chain. Note also that the positive terminal of the input and output connections are on the outer pins of this connector. ATTENTION!DO NOT CONNECT VOLTAGES EXCEEDING 70 VOLTS (DC or AC rms) TO THE RLY OUT CONNECTOR! DAMAGE TO THE CM16a COULD RESULT OR CREATE HAZARDOUS OPERATING CONDITIONS!If there is a need to switch higher voltage or current levels with the CM16a, contact Technical Services for suggested solutions. 20 Section 2: Installation- Connections CONNECTION TO 10BASE-T (network connection) Connection to the Ethernet network is made using the RJ-45 type connector labeled 10BASE-T on the rear panel. "RJ-45" is the standard network connector for Ethernet networks. Insert the RJ45 plug into the receptacle with the lock-tab oriented toward the bottom of the CM16a and push firmly until the connector locks into place (usually an audible "click" can be heard). Refer to Section 1 of this manual for Ethernet connection schemes and cabling. If the CM16a is connected directly to the system controller computer's network interface card, a crossover type cable is required. All other connection methods utilize normal Ethernet cabling. CONNECTING TO THE RS-232 PORT Connection is made with a null-modem serial cable with a DB-9 male plug to the CM16a. The RS-232 port can be used for setting various operational parameters that are CRITICAL to proper operation of the CM16a. Do Not Change the Network Address unless you are certain of what you are doing! Refer to Section 3 (page 27) for more information. CONNECTING TO 2-CHANNEL AMPLIFIERS 2-channel amplifiers require a cable connection from the amp's DataPort to the appropriate PORT receptacle on the CM16a. To connect the cable to the CM16a, orient the HD-15 connector with its wider-side down (look at the connector, one side of the plug's metal surrounding is wider than the other) and align it with the receptacle, then gently push into the receptacle until it is firmly seated. Use the retaining screws on the cable ends to secure the plug to the CM16a and the amplifer. Tighten "finger tight" to avoid damage to the HD-15 receptacle. The same basic procedure applies for connecting the other end of the cable to the amplifier's DataPort. CONNECTING TO 4-CHANNEL AMPLIFIERS Two basic rules must be adhered to: First, both DataPorts of the amplifier must be used. [. . . ] Amplifier Management--For each of the eight DataPort connections, the Amplifier Network Monitor shall provide AC standby/operate mode control, AC power state indication, temperature metering, load status, and protect status detection. Audio Monitoring Chain--For each of the sixteen program channels, the Amplifier Network Monitor shall provide three monitor points as follows: (1) pre-fader control, (2) post-fader control, or (3) 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 Amplifier Network Monitor's monitor output connector shall be the sum of the signal at its monitor input connector and four selected channel monitor signals. [. . . ]