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5
communication ports
Your Nº30.6 includes both RS-232 and the Mark Levinson Link-
ing system communications ports.
The RS-232 port may also be used to update the operating soft-
ware of the Nº30.6, so that your system will be able to handle new
digital audio formats as they are introduced. (Think of updating
the software in the Nº30.6 as being like installing new software in
your computer… only much less painful.) Once again, your dealer
can assist you in taking advantage of these advanced features,
should the need arise.
The “pinout” connections used on the RJ-11 connector used for
the RS-232 port is as follows:
c
o
n
t
r
o
l
i n
o u t
2 3 2
i r
i n p u t
1
2
D C
t r i g g e r s
1 2 3 4 5 6
p i n 2 = R x f r o m P C
p i n 3 = T x t o P C
p i n 5 = g r o u n d
Note that only qualified technicians should attempt to make use
of the special capabilities afforded by this RS-232 communica-
tions port.
Linking connections
The Mark Levinson Linking system uses the Nº30.6 as the Master
of (and central clearinghouse for) inter-component communica-
tions. Other components such as digital transports are connected
to the Master as “Slaves,” and can be “daisy-chained” using their
Slave In and Slave Out jacks. As the ultimate destination of all
source signals, the Nº38 or Nº38S Preamplifier (if owned)
must
be
the final “Slave” in the chain. (
In technical terms, it terminates the
communications bus
.) In turn, the Nº38 can serve as a master to an
associated compatible Mark Levinson power amplifier—hence its
“Master” communications port.
Thus, if the only other Mark Levinson Link-compatible compo-
nent you have is the preamplifier, connect the Nº30.6’s
master
port to the preamplifier’s
slave
port using a “straight-through”
RJ-45 cable. If there are additional Mark Levinson Link-compat-
ible components in the system, place the preamplifier at the end
of the chain by connecting the last
slave out
port to the Nº38’s
slave
port. See the diagram at left for clarification.
