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Table of Contents
Summary of Contents for Rosendahl nanoclocks GL
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Page 1: Instruction Manual
Instruction Manual nanoclocks GL nanoclocks GL is a digital audio genlock masterclock with 12 word clock / AES11 DARS outputs and 2 reference inputs for SD video syncs, HD tri-level syncs, AES11 or word clock signals. www.rosendahl-studiotechnik.com - 1 -... - Page 2 - 2 -...
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Page 3: Table Of Contents
Contents 1. Unpacking and Mounting into a 19" Rack page 2. Connection to Power Supply page 3. Installation & Connection Status page 4. System Settings page 5. Reference page 6. Sample Rate page 11 7. Output Mode page 11 8. Setup Utility page 12 9. -
Page 4: Unpacking And Mounting Into A 19" Rack
The unit is shipped with four small plastic feet mounted underside with Philips screws. If you want to rack mount your nanoclocks GL please detach the four plastic feet. For desktop use please detach the rack mount brackets using a metrical hex-wrench. -
Page 5: Connection To Power Supply
Use 230 VAC setting in the UK, EU. Use 115 VAC setting in the US, Japan. nanoclocks GL can also be powered by a 12 volt DC supply using the 4-pin XLR connector, pin 1 is Ground (-) and pin 4 is Vcc (+) 12V. -
Page 6: Installation & Connection Status
3. Installation & Connection Status If you require no more than the 12 word clock/ AES11 outputs provided by the nanoclocks GL feed each digital audio unit with a separate clock line. Use 75 ohm coaxial (RG59) cables with standard BNC connectors for word clock or AES11 lines. -
Page 7: System Settings
Correct termination is quite important to avoid cable reflections, especially for the higher frequency AES11 signals. The nanoclocks GL is monitoring the connection status on each output and displays the present state of termination. (1) Press the STATUS key. (2) buttons 1..12 for outputs 1..12 will display: off: output is open or not terminated, >... -
Page 8: Reference
When no valid sync signal applies the INPUT buttons start blinking. Nanoclocks GL will synchronise its audio clocks as soon as a valid video input signal is detected and the sample rate buttons will start blinking. - Page 9 Then the rising edge of the word clock signal will be phase locked to the start of video line 1. Several nanoclocks GL units locked to the same video house sync will produce phase locked audio clocks. REFERENCE = AUDIO Press the AUDIO button to configure nanoclocks GL for audio genlocked operation.
- Page 10 The lock range of the nanoclocks audio crystal oscillators is +/- 50 ppm, which allows synchronisation to even strongly distuned audio clock references. Sample rate buttons light up continuously when the unit is LOCKED to the selected audio reference input signal. REFERENCE = DISTRIBUTION AMPLIFIER Press the DIST.
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Page 11: Sample Rate
6. Sample Rate Enter SETUP and select the new sample rate by pressing the respective button. Button -0.1% will apply a so-called pull down sample rate (x1000/1001) as used for video and film post-productions for NTSC frame rate compensation. Do not use pull down rates for standard audio applications. Sample rate buttons are blinking when the unit is relocking/ synchronising to a new reference or sample rate. -
Page 12: Setup Utility
8. Setup Utility The firmware version installed on your nanoclocks GL is displayed every time the unit is powering up. After a LED test (all LEDs light up from left to right) the connection and output status field LEDs will briefly show the current version (one digit only, current version is 1). -
Page 13: Declaration Of Conformity
9. Declaration of Conformity Rosendahl Studiotechnik GmbH Andechser Str. 5 D-86919 Utting a.A. Germany herewith confirms that the product: Type: digital audio genlock masterclock Model: nanoclocks GL meets the requirements of the council of the European communities relating to electromagnetic... -
Page 14: Specifications
1,8 GHz PLL for -0.1% pull down rate generation. USB: USB type B, device class compliant MIDI (USB audio). plug & play with Windows XP or later, MAC OSX. Rosendahl Sysex. Power: Mains connector 3-pole IEC 60320/C14 Voltage selector switch 230 VAC or 115 VAC on left side.
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