Lectrosonics SPNDNT Bedienungsanleitung PDF herunterladen (Seite 12)

ASPEN Digital Processor

LECTROSONICS, INC.

Cabling Of Stacked Units

NOTE: The SPNDNT must always be the Master

at the top of the stack to synchronize the ASPEN

system and network clocks.

The ASPEN bus is bidirectional, allowing data and

audio to be propagated forward and backward through

a single cable connection. Each Slave unit in a stack

gathers data and audio signals from the unit below it,

adds its own signals and passes the total on to the

unit above it. At the top of the stack, the Master unit

gathers all signals from below, adds its own and then

sends the total back down the bus to all Slave units.

This architecture allows all Slave units to have access

to the mixing data and audio in all 48 ﬁnal mixes.

Each circuit board has an upper and a lower ASPEN

bus connector. Since there are two circuit boards in a

2RU unit such as the SPN1624, the circuit boards are

connected in the same manner as if they were each in

a separate chassis.

1RU SPNDNT

conﬁgured as

Master

2RU SPN1624

conﬁgured as

intermediate

Slave

1RU SPN16i

conﬁgured

as lowermost

Slave

ASPEN PORT

The processors automatically conﬁgure themselves for

Master and Slave status as determined by the cabling.

Front Panel USB Port

This is the easiest connection point to run ASPEN

control panel software until the network is conﬁgured

and IP addresses have been established. Connect the

computer to the Master unit in the ASPEN stack and

launch the control panel software. The Master unit will

appear on the screen, and the Slave units below it will

then be accessible as well.

812

1612

DNT

Hardware Connections

Installing the chassis into a rack

Install the chassis so that the cooling fan vent is not

blocked. Mount with 4 rack screws using the appropri-

ate mounting holes. Use nylon washers to prevent

damage to the front panel’s ﬁnish when tightening the

mounting screws.

All ASPEN processors have internal switching power

supplies that can tolerate voltages ranging from 100

to 240 VAC. Use an approved power cord with an IEC

60320 C13 connector.

Connecting the Master for the First Time

NOTE: Install ASPEN software before

connecting the Master unit to a computer.

The computer operating system will automatically de-

tect and conﬁgure a USB port for the Master unit when

it is connected and turned on the ﬁrst time. Wait for the

screen message that advises that the new device has

been conﬁgured and is ready for use.

Rear Panel

Review the rear panel connectors on page 6. Connec-

tors are used for the following purposes.

Port Purpose

RS-232 Third party control devices such

as LCD touch panels

ETHERNET ASPEN control panel software

interface for setup, monitoring and

control

ASPEN

PORTS

Interconnect multiple ASPEN

processors

DANTE Network audio I/O ports and setup

with Dante Controller software

RS-232 is a common interface with LCD touch panel

control systems such as Crestron

and AMX

. The

wiring diagram for DB-9 connectors is shown on the

opposite page.

The ETHERNET port is used with ASPEN control

panel software for setup, monitoring, control and

diagnostics. It does not transport audio. IP addresses

can be set up statically, or one can be assigned by

a network server if DHCP is enabled in the software

control panel.

ASPEN Ports connect multiple processors for data and

signal ﬂow. 2RU units have two internal circuit boards

that must be connected with cables in the same man-

ner as two separate processors.

The DANTE ports connect to network switches.

Multiple SPNDNT processors can also be connected

directly to each other through these ports.

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