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Turn on the power by pressing the top of the power switch above the
power cord receptacle (it has a solid vertical line to indicate “on”:

.) Do

not switch power off and on rapidly, as this interrupts the normal power-up
sequence. We advise waiting at least five seconds between power cycles.

COMMUNICATION PORTS

These communications ports allow the Nº37 to “link” to certain compatible
Mark Levinson components. (See “

Linked Functions

.”)

The Mark Levinson Linking system provides for inter-component communi-
cations. Using the digital processor as the “master” of the system, other
components such as digital transports and preamplifiers may be “daisy-
chained” from the master, and information may be shared among all of the
components on the daisy-chain. (The master acts as a central clearinghouse
for that information.)

Linking connections

Thus, if the only other Mark Levinson Link-compatible component you
have is the Nº36 (for example), connect its

master

port to the Nº37’s

slave

port using a “straight-through” modular cable. Subsequent Link connec-

tions among source components are made from one component’s

slave out

port to the next component’s

slave in

port, continuing the “daisy chain.” If

there is a Mark Levinson Link-compatible preamplifier in the system, place
it at the end of the chain of line-level components by connecting the last
source component’s

slave out

port to the preamplifier’s

slave

port. See the

diagram at left for clarification.

Important: If a compatible Mark Levinson preamplifier (such
as the Nº38 or Nº38S) is Linked, it must be the last of the line-
level components in the daisy chain. (Technically, it serves to
terminate the communications bus used by the source
components.)

Electrically, the Link connection between the preamplifier and the power
amplifier(s) in the system is independent of the communications Links be-
tween various source components and the preamplifier. It may be used or
not, regardless of whether the source components form a complete Com-
munications Link system.

The modular cable needed for the Link connection between the Nº37 and
other Link components may be purchased from your Mark Levinson dealer.
It may also be easily and inexpensively made to length using two modular
connectors and the appropriate length (up to 100 feet/30 meters) of flat,
eight conductor cable.

Modular cables and connectors are used throughout the world for both tele-
communications and computers, and are widely available at low cost. The
connectors are crimped on to the ends of the cable such that pin 1 at one
end is connected to pin 1 at the other end. Such a “straight-through” con-
nection is (counter-intuitively) made by introducing a 180

twist in the

cable between the two ends, as shown below.

digital input

master

analog output

digital output

slave in

slave out

Link

cable

Link

cable