KRAMER ELECTRONICS Ltd. USER MANUAL SDI and Digital Audio Distribution Amplifiers Models: 6104 SD-7108 SD-7208 SD-7816 SD-7816B IMPORTANT: Before proceeding, please read paragraph entitled "Unpacking and Contents" KRAMER ELECTRONICS LTD.
Table Of Contents Section Name 1 1.1 1.2 1.3 1.4 2 3 4 5 6 6.1 6.2 6.3 6.4 6.5 7 8 9 10 10.1 10.2 10.2.1 10.2.2 11 12 12.1 12.
1 INTRODUCTION Congratulations on your purchase of this Kramer Electronics SDI / Digital Audio Distributor. Since 1981, Kramer has been dedicated to the development and manufacture of high quality video/audio equipment. The Kramer line has become an integral part of many of the best production and presentation facilities around the world. In recent years, Kramer has redesigned and upgraded most of the line, making the best even better.
Broadcast systems usually use 10-bit video, and 20- to 24- bit audio. The advantages of working in a digital domain are obvious – a digital signal may be transported very easily, and saved and retrieved reliably with no generation losses. The transmission of a digital video signal is reliable up to a certain length of cable. Beyond this length, the signal is destroyed. This phenomenon is known as the “cliff-effect”.
Figure 2: The Digital “eye” after accumulating noise and jitter 1.3 SDI Standards Today, “uncompressed” digital video usually refers to digital component video (the ITU-R BT.601 standard). This is based on a sampling of component video. The sampling scheme stipulates one luminance (Y) sample for each pair of color-difference (R-Y and B-Y) samples. Luminance sampling is done at 13.5MS/s (mega-samples per second), and each color-difference is sampled at 6.75MS/s.
2 SPECIFICATIONS 6104 Function 1:4 SDI Distributor Inputs SD-7108 1:8 SDI Distributor / Deserializer SD-7208 SD-7816 SD-7816B Serializer, 1:8 SDI Distributor 1:16 or 2x1:8 AES/EBU Distributor 1 SMPTE1 SMPTE-259M 259M Serial Serial Video, 75 Video, 75 ohms ohms on a BNC on a BNC Parallel Digital Video on DB25F connector, ECL levels Digital Audio, 110 Digital Audio, 75 ohm on detachable ohm on BNCs terminal blocks Outputs 4 reclocked SMPTE-259M Serial Video, 75 ohms on BNCs.
3 HOW DO I GET STARTED? The fastest way to get started is to take your time and do everything right the first time. Taking 15 minutes to read the manual may save you a few hours later. You don’t even have to read the whole manual. If a section doesn’t apply to you, you don’t have to spend your time reading it. 4 UNPACKING AND CONTENTS The items contained in your Kramer SDI / Digital Audio Distributor package are listed below.
6 SDI AND DIGITAL AUDIO DISTRIBUTORS This section describes all the controls and connections of your distributor. Understanding the controls and connections helps you realize the full power of your machine. 6.1 Getting to Know Your 6104 Distributor The Kramer 6104 is an adjustment-free, equalized, reclocking, multi-standard Serial Video Distribution Amplifier.
6.2 Getting to Know Your SD-7108 Distributor / Deserializer The Kramer SD-7108 is an adjustment-free, equalized, reclocking, multi-standard Serial Video Distribution Amplifier. In addition, a parallel ECL reclocked output is also provided. The machine provides automatic equalization for losses on the 75-ohm co-axial cable (up to 100s of meters of cable - depending on the cable and the video standard), and reclocks the output to provide 8 low-jitter, serial digital outputs.
6.3 Getting to Know Your SD-7208 Serializer / Distributor The Kramer SD-7208 is an adjustment-free, reclocking, multi-standard Serializer/SDI Distribution Amplifier. The machine embeds the clock and parallel data into an NRZI serial stream according to the SMPTE 259M standard and reclocks the output to provide 8 low-jitter, serial digital outputs. Standard recognition is automatic. A front panel LED indicates locking to the incoming signal. The user may adjust the serial video output level.
6.4 Getting to Know Your SD-7816 Digital Audio Distributor The Kramer SD-7816 is a high performance, dual mode, distribution amplifier for digital audio signals. The machine can be set to operate as a single-channel 1:16 or as a two-channel 1:8 unit. Several digital formats are supported including AES/EBU, IEC 958, S/PDIF and EIAJ CP340/1201 professional and consumer formats with sampling frequencies up to 96 kHz. The machine provides 2 inputs, equalized to compensate for losses on twisted pair cables.
6.5 Getting to Know Your SD-7816B Digital Audio Distributor The Kramer SD-7816B is a high performance, dual mode, distribution amplifier for digital audio signals. The machine can be set to operate as a single-channel 1:16 or as a two-channel 1:8 unit. Several digital formats are supported including AES/EBU, IEC 958, S/PDIF and EIAJ CP340/1201 professional and consumer formats with sampling frequencies up to 96 kHz. The machine provides 2 inputs equalized to compensate for losses on 75-ohm cables.
7 INSTALLATION 8 CONNECTING TO DIGITAL VIDEO DEVICES Digital video sources and output devices may be connected to the SDI distributors through the BNC type connectors on the back panel. SDI signals are very high frequency carrying signals, and are sensitive to cable quality and length.
10.1 Operation of the SDI Distributors ⌦ ⌦ ⌦ ⌦ ⌦ Connect an SDI source to the BNC input socket of the 6104 or SD-7108 distributor. Connect a Parallel digital video source to the DB25 input socket of the SD-7208. Connect up to four (6104), or eight (SD-7108, SD-7208), SDI acceptors to the output sockets of the distributor. Connect, if required, a Parallel digital video acceptor to the PARALLEL OUT socket of the SD-7108.
Figure 9: Compensation level The AES and SMPTE committees established the standard interface for transmission of AES/EBU data on coaxial cable, sometimes referred to as AES3-ID. For this type of interface, the SD-7816B should be used. The signal is bi-phase coded, transformer coupled and transmitted over a coaxial cable in a single ended format. The signal level is 1.0 volts peak to peak with a source impedance of 75 ohms.
Professional format: 110 ohm, Balanced Measured value, DIP SWITCH SETTING Volts (p-p) 4 3 2 1 1.8v and above OFF OFF OFF OFF 1.7V OFF OFF OFF ON 1.6v OFF OFF ON OFF 1.5V OFF OFF ON ON 1.4V OFF ON OFF OFF 1.3V OFF ON OFF ON 1.2V OFF ON ON OFF 1.1V OFF ON ON ON 1.0V ON OFF OFF OFF 0.9V ON OFF OFF ON 0.8V ON OFF ON OFF 0.7V ON OFF ON ON 0.6V ON ON OFF OFF 0.5V ON ON OFF ON 0.4V ON ON ON OFF 0.3V ON ON ON ON Consumer format: 75 ohms, on BNCs Measured value, DIP SWITCH SETTING Volts (p-p) 4 3 2 1 0.
12 TROUBLESHOOTING 1. 2. NOTES Please note that if the output signal is disturbed or interrupted by very strong external electromagnetic interference, it should return and stabilize when such interference ends. If not, disconnect power from the machine and reconnect again to reset the machine. If the following recommended actions still do not result in satisfactory operation, please consult your KRAMER Dealer. 12.1 Power and Indicators Problem No Power Remedy 1.
LIMITED WARRANTY Kramer Electronics (hereafter Kramer) warrants this product free from defects in material and workmanship under the following terms. HOW LONG IS THE WARRANTY Labor and parts are warranted for three years from the date of the first customer purchase. WHO IS PROTECTED Only the first purchase customer may enforce this warranty. WHAT IS COVERED AND WHAT IS NOT COVERED Except as below, this warranty covers all defects in material or workmanship in this product.
LIMITATION OF IMPLIED WARRANTIES All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to the length of this warranty. EXCLUSION OF DAMAGES Kramer’s liability for any defective products is limited to the repair or replacement of the product at our option.
The list of Kramer distributors appears on our web site: www.kramerelectronics.com From the web site it is also possible to e-mail factory headquarters. We welcome your questions, comments and feedback. KRAMER ELECTRONICS, LTD. 3 Am VeOlamo Street. Jerusalem 95463, Israel Tel: (972-2)-654-4000. Fax: (972-2)-653-5369 E-mail: kramerel@netvision.net.
