Specifications

26
Installation
The ADX-2400N is designed to be installed in a standard 19" equipment rack.
There is a cooling fan on the rear panel which draws air in through the sides of the
cabinet and exhausts hot air through the rear panel. The unit should not be installed
in such a way as to block the vents on the side panels, or air flow from the rear panel
fan.
The unit is designed to operate on 95-250 volts AC, 50 or 60 Hz. The power
supplies are wide-range switching supplies, so no voltage selection needs to be
made. Dual power supplies are installed for redundancy.
Power consumption is approximately 25 watts.
The analog audio connections are made through six 25-pin female D-sub
connectors, wired to the industry-standard Tascam DA-88/Protools standard. Pre-
wired jackfields and breakout cables are available from Audio Accessories
(www.patchbays.com
) and other vendors.
The audio format is balanced, +4db nominal. The source impedance of the outputs
is approximately 50 ohms. The input impedance is approximately 25K ohms. The
system is intended to be used in a modern constant-voltage system. The outputs
may be terminated in 600 ohms if necessary, with a loss in level of about 0.75 dB.
This termination will increase power dissipation in the output amplifiers, and is not
recommended unless necessary for system consistency.
The audio cables should be supported in such a way as to prevent weight being
applied to the rear of the ADX-2400. The rack mounting flanges are sufficient to
support the unit itself, but not additional loading of the heavy I/O cables. Support
bars under the rear of the frame are recommended.
The Ethernet 'Audio Network' ports (one or both) should be connected to the
network with standard CAT5 RJ-45 cables, following normal IT practice. The ports
are 100/baseT Ethernet. The connectors on the ADX-2400 are wired with the same
pinout as normal PC ports, and are not
auto direction sensing. If connecting two
ADX units together without a switch, a crossover cable must be used.
It is not possible to 'daisy-chain' units together. The two ports do not function as
'loop-through'. Each unit should be connected to a separate switch port.
The maximum length for 100/baseT Ethernet on copper is 100 meters. For longer
runs there must be a repeater (switch) or media converter (fiber) in the path. See
the Cobranet website (www.cobranet.info
) for more information.