Rosendahl nanosyncs HD - Manual (Page 2)

- 2 -
1. Unpacking and Mounting into a 19"Rack
The unit is shipped in two preset mains versions:
115VAC and 230VAC
Please check the mains voltage marking on the original package
and the voltage label on the rear panel before you connect the
unit to mains.
The voltage selection slide switch is on the left side of the unit and
covered by a plastic label to avoid accidentally changes.
The nanosyncs HD comes with the following accessories:
1 pcs IEC mains cable
1 pcs USB cable, type A-B
1 pcs Instruction manual, that you are now reading
Please check that all these items are present and contact your dealer
if anything is missing.
The nanosyncs HD housing is a standard 19" rackmount type, 1U
high.
Use four rackmount screws to mount the unit into a standard 19"
rack.
When necessary remove the bonded rubber foots on the bottom side.
Please do not mount your nanosyncs hd direct atop of equipment
with high heat emission. High ambient temperature can cause small
variations in the absolute tuning of the internal precision crystal
oscillator.
Make sure the used power socket is a 3-pole type with separate
ground conductor. Use only the provided or other 3-pole power
cables with international safety certificates.
- 3 -
2. Installation
Word clock cables should be under 20 metres to retain maximum
benefit from the nanosyncs HD ultra low jitter clocks.
The optimum solution is to mount the nanosyncs HD in the same 19“
rack as the most important AD/ DA digital audio converters in your
studio. These units should receive the lowest jitter sample clocks.
If you require no more than the eight word clock outputs provided by
the nanosyncs HD feed each digital audio unit a separate clock line.
If you need more clock signals you should use a word clock
distribution unit such as the Rosendahl nanoclocks.
All video and word clock cables used must be 75 ohm coaxial
(RG59). Do not use 50 ohm coaxial computer network cables
(RG58).
Most video and word clock inputs are internal terminated with 75
ohms. You can not connect two terminated inputs to one word clock
or video sync output using a BNC-T. Only if the inputs are switchable
or have no termination you can use BNC-Ts to connect multiple word
clock or video sync inputs. In this case use very short cables to link
the BNC-Ts. Ensure that only the last input of the chain is 75 ohm
terminated. Passive BNC-T links should not be used to link more
than 3 inputs. Please refer also to the instruction manuals of the
devices you connect to the nanosyncs audio clock and video sync
outputs.