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A
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SDEC-3000
SDEC-4000P and
SDEC-4000X
7 AC MAINS
AC Mains input to the universal switched-mode power supply, operates over a wide range of AC input voltages
from 85V to 270V, 50/60Hz.
8 LOCATE
Pressing the Locate switch on the rear of the unit will illuminate the Locate switch on the front and identify the
device within the DACS software.
9 COBRANET CONNECTORS
Primary/Secondary: The SDEC-4000P and SDEC-4000X use CobraNet to send and receive audio data. During normal
operation, the Primary port only receives audio data from and transmits audio data to the network. Should the
Primary port or connection fail, the CobraNet module automatically switches to receive from and transmit with the
Secondary port. This is an optional connection.
Please Note: When using the SDEC-4000, you must connect the two units through the CobraNet connection, using
a Cat. 5e crossover cable.
A RS-232
Serial port for connection of external calibration and configuration equipment not used at this time.
B ETHERNET
The main connection for the proprietary system control network, and for third-party Ethernet control. The SDEC-4000
must be connected to an Ethernet hub during the calibration process. The SDEC-3000 can be connected directly to
a PC using a crossover Cat. 5 Ethernet cable.
C BUDDYLINK/48K
This connection is not supported at this time.
D CONTROL INPUTS
The SDEC-4000 can be configured for full-range or bi-amp operation by using these control inputs. The SDEC-3000
does not need or use this connection.
E I/O CARD POSITIONS A, B, C AND D
These connectors provide the balanced and unbalanced connections for the I/O card fitted in the four card
slots in a JBL Synthesis SDEC device. A green LED next to the slot assignment letter A, B, C or D indicates that an
Input card is fitted and an amber LED when an output card is fitted. The analog connections are balanced/unbal-
anced, on Phoenix/Combicon connectors. Depending on which model and configuration you have purchased will
determine which I/O card has been installed at the factory. Please make sure to order the correct wiring kit, either
S3000IC or S4000IC, with your system.
DETAILED DIAGRAM –REAR PANEL
SDEC-3000 has no CobraNet or Word Clock connections, but is otherwise identical to the SDEC-4000P and SDEC-4000X.
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