1. المقدمة
The Kramer AFM-20DSP-AEC is an advanced, professional audio matrix switcher designed for versatile audio routing and processing. This device features 20 analog ports configurable as inputs or outputs, multi-channel DSP, Acoustic Echo Cancellation (AEC), a built-in power amplifier, and a Dante interface. This manual provides essential information for the proper setup, operation, and maintenance of your AFM-20DSP-AEC unit.
2. محتويات العبوة
تأكد من وجود جميع العناصر في الحزمة الخاصة بك:
- Kramer AFM-20DSP-AEC 20-Port Audio Matrix with DSP
- سلك الطاقة
- Rack Ears (if applicable)
- موصلات كتلة المحطة
- دليل البدء السريع (راجع هذا الدليل للحصول على التفاصيل الكاملة)
3. Physical Description and Connections
The AFM-20DSP-AEC features a robust design with various ports and indicators on its front and rear panels. Understanding these components is crucial for proper installation and operation.
3.1 اللوحة الأمامية
الشكل 1: Front and Rear Panels of the AFM-20DSP-AEC. The front panel displays the Kramer logo, status indicator, 20 port status LEDs, Dante indicators, HDMI embed/de-embed indicators, USB/S/PDIF indicators, and amplifier channel indicators. The model number AFM-20DSP-AEC is also visible.
- Kramer Logo: تحديد العلامة التجارية.
- مؤشر LED للحالة: Indicates the operational status of the unit.
- PORTS LEDs (1-20): Indicate the status of each of the 20 configurable audio ports.
- DANTE IN/OUT LEDs: Indicate Dante network activity.
- HDMI EMBED/DE-EMBED LEDs: Indicate HDMI audio embedding or de-embedding status.
- USB S/PDIF IN/OUT LEDs: Indicate USB or S/PDIF audio input/output activity.
- AMPLIFIER CH.1/CH.2 LEDs: Indicate the status of the built-in ampقنوات التنشيط.
3.2 اللوحة الخلفية
الشكل 2: Rear Panel Connections of the AFM-20DSP-AEC. This view shows the 20 analog audio ports (XILICA Onboard), USB port, HDMI input/output, S/PDIF input/output, Speaker Out (Lo-Z), COM port, Dante Ethernet ports, RS-232 port, Reset button, USB Prog. port, and the AC power inlet with power switch.
- XILICA Onboard PORTS (1-20): Terminal block connectors for analog audio inputs/outputs. Each port includes connections for signal (+) and ground (G).
- منفذ USB: For connecting to a computer for configuration and control.
- مدخل / مخرج HDMI: HDMI ports for audio embedding and de-embedding.
- S/PDIF IN/OUT: Coaxial S/PDIF digital audio connections.
- SPEAKER OUT (Lo-Z): Terminal block for low-impedance speaker connections (L+, L-, R+, R-).
- Hi-Z / COM: Terminal block for high-impedance speaker output and common ground.
- Dante ETHERNET Ports: RJ-45 connectors for Dante audio networking.
- RS-232: Serial port for control system integration (G, Rx, Tx).
- زر إعادة الضبط: For factory reset or reboot.
- USB PROG. Port: Dedicated USB port for firmware updates and programming.
- مدخل طاقة التيار المتردد: لتوصيل سلك الطاقة.
- مفتاح التشغيل: لتشغيل الوحدة أو إيقاف تشغيلها.
4. الإعداد والتثبيت
Follow these steps for proper installation of your AFM-20DSP-AEC unit.
- التركيب: Install the unit in a standard 19-inch equipment rack using the provided rack ears, or place it on a stable surface. Ensure adequate ventilation around the unit.
- توصيل الطاقة: Connect the supplied power cord to the AC Power Inlet on the rear panel and then to a grounded AC power outlet. Do not power on the unit yet.
- اتصالات الصوت:
- الصوت التناظري: Connect your analog audio sources and destinations to the XILICA Onboard PORTS (1-20) using appropriate terminal block connectors. Ensure correct polarity (+ and G).
- Digital Audio (S/PDIF): Connect S/PDIF sources and destinations to the S/PDIF IN/OUT ports.
- صوت HDMI: Connect HDMI sources to HDMI IN and displays/receivers to HDMI OUT for audio embedding/de-embedding.
- Dante Network: Connect the Dante ETHERNET ports to your Dante-enabled network switch for Dante audio routing.
- توصيلات السماعات: If using the built-in amplifier, connect your low-impedance speakers to the SPEAKER OUT (Lo-Z) terminal block. Observe correct polarity (L+, L-, R+, R-).
- اتصالات التحكم:
- USB: Connect the USB port to a computer for initial configuration and control via Kramer software.
- RS-232: Connect to a control system using an RS-232 cable for external control.
- تشغيل الطاقة: Once all connections are secure, switch the Power Switch on the rear panel to the 'ON' position. Observe the STATUS LED and other indicators on the front panel.
5. تعليمات التشغيل
The AFM-20DSP-AEC is primarily configured and controlled via Kramer's dedicated software interface, which provides access to its advanced DSP capabilities, matrix routing, and AEC functions.
- التحكم في البرنامج: Connect the unit to a computer via the USB port and launch the Kramer control software. This interface allows for:
- Configuring input/output assignments for the 20 analog ports.
- Managing multi-channel DSP settings (EQ, dynamics, routing).
- Adjusting Acoustic Echo Cancellation (AEC) parameters for optimal performance.
- Controlling HDMI audio embedding and de-embedding.
- Monitoring Dante network status and routing.
- Adjusting built-in amplifier output levels.
- Dante Integration: Utilize Dante Controller software for network-wide audio routing and management of Dante flows to and from the AFM-20DSP-AEC.
- التحكم RS-232: Integrate the unit into a larger control system using RS-232 commands for automated operation. Refer to the Kramer programming guide for detailed command protocols.
- Audio Signal Flow: The unit allows for flexible routing of any input to any output, with DSP processing applied as configured. Ensure proper gain staging throughout your audio system to prevent clipping or noise.
6. الصيانة
To ensure the longevity and optimal performance of your AFM-20DSP-AEC, follow these maintenance guidelines:
- تنظيف: افصل التيار الكهربائي قبل التنظيف. استخدم قطعة قماش ناعمة وجافة لمسح السطح الخارجي. لا تستخدم المنظفات السائلة أو البخاخات.
- تهوية: Ensure that the ventilation openings are not blocked. Overheating can damage the unit.
- تحديثات البرامج الثابتة: قم بفحص جهاز كرامر بشكل دوري website for firmware updates. Use the USB PROG. port and Kramer's update utility to install new firmware, following the provided instructions carefully.
- الظروف البيئية: Operate the unit within specified temperature and humidity ranges. Avoid exposure to direct sunlight, excessive dust, or moisture.
7. استكشاف الأخطاء وإصلاحها
If you encounter issues with your AFM-20DSP-AEC, refer to the following common problems and solutions:
| مشكلة | السبب المحتمل | حل |
|---|---|---|
| لا يوجد طاقة | Power cord disconnected; Power switch off; Faulty power outlet. | Check power cord connection; Ensure power switch is ON; Test power outlet with another device. |
| لا يوجد مخرج صوتي | Incorrect routing in software; Muted channels; Incorrect input/output configuration; Faulty cables. | Verify routing and mute settings in Kramer software; Check analog, S/PDIF, HDMI, and Dante connections; Ensure speakers are connected correctly and powered. |
| صوت مشوه | Input signal too high (clipping); Incorrect gain staging; Faulty cables. | Reduce input levels; Adjust gain settings in DSP software; Replace suspect cables. |
| AEC not working effectively | Improper AEC configuration; Microphone placement issues; Room acoustics. | Review and adjust AEC parameters in the software; Optimize microphone placement; Consider room acoustic treatment. |
| Cannot connect via USB/Ethernet | Driver issues; Incorrect IP settings; Firewall blocking connection; Faulty cable. | Install/update Kramer drivers; Verify network settings (IP address, subnet mask); Temporarily disable firewall; Try a different USB/Ethernet cable. |
If the problem persists after attempting these solutions, contact Kramer technical support.
8. المواصفات
Key technical specifications for the Kramer AFM-20DSP-AEC:
- نموذج: AFM-20DSP-AEC
- الموانئ: 20 configurable analog audio ports
- معالج الإشارة الرقمية: Multi-channel Digital Signal Processing
- إلغاء الصدى الصوتي: إلغاء صدى الصوت
- Ampمكبر: Built-in 2x60W @ 8Ω and 1x120W @ 70V / 100V power ampالقمامة
- واجهة دانتي: 4x4 Dante channels
- HDMI: تضمين الصوت وإلغاء التضمين
- س/بديف: مدخل ومخرج الصوت الرقمي
- USB: Mini USB for control, USB PROG. for firmware
- يتحكم: RS-232, Ethernet (Dante)
- Sampمعدل لينغ: حتى 96 كيلو هرتز
- وزن السلعة: 7 رطل
- أبعاد الحزمة: 17 × 9 × 2 بوصة
- الشركة المصنعة: كرامر للإلكترونيات
9. الضمان والدعم
Kramer Electronics provides a standard warranty for its products. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Kramer website. For technical support, product registration, or service inquiries, please contact Kramer customer support through their official channels.
كرامر Webموقع: www.kramerav.com
