Mark Levinson N40 User Manual Page 52

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3-8
Rear Panel Operation Mark Levinson
chain them in a similar way. These are fully bidirectional ports, and
the order in which they are connected is not important.
The RJ-45 cable needed for the connection between the Nº40 and
other PHAST-compatible Mark Levinson components can be
purchased from your Mark Levinson dealer. It can also be easily and
inexpensively made to length using two RJ-45 connectors and the
appropriate length (up to 100 feet/30 meters) of RJ-45 (flat, eight
conductor) cable.
RJ-45 cables and connectors are used throughout the world for both
telecommunications 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” connection is (counter-intuitively) made
by introducing a 180° twist in the cable between the two ends, as
shown below.
Figure 3-11: PHAST cable showing 180° twist.
Caution Connecting the communication ports other than as described in
this manual can damage the Nº40 and the associated compo-
nents, and will void the product warranties.
These ports also provide for extensive home automation flexibility
via the PHAST™ protocols, should you be interested in integrating
other brands of products into the system in a more comprehensive
control system. Your dealer can assist you in taking advantage of
these advanced features.
RS-232 Control Ports
The Nº40 also includes two RS-232 ports. Port 1 is reserved for
future applications. Port 2 can be used in conjunction with external
control systems such as Audioaccess, AMX, or Crestron (port 2).
Your dealer can assist you in taking advantage of these advanced
features.
RS-232 port 2 can also be used to update the operating software of
the Nº40, so that your system will be able to incorporate new
features as they are introduced. Once again, your dealer can assist
you in taking advantage of these advanced features, should the
need arise.
The pin connections used on the RJ-11 connectors used for the RS-
232 ports are as follows:
To PHASTL ink™ compatible component To Nº40
Locking tabLocking tab
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