SP Hardware



Inputs: These four plug-in barrier strip connectors provide balanced input for line level signals. For unbalanced input, wire high to (+) and ground to both (image\Ground.gif) & (-). Settings for these inputs are accessed by double-clicking the SP Input 4 Channel block in the Layout.


Outputs: These eight plug-in barrier strip connectors provide balanced output of line level signals. For unbalanced output, wire high to (+) and ground to (image\Ground.gif), leaving (-) un-connected. Settings for these outputs are accessed by double-clicking the SP Output 8 Channel block in the Layout.


NexLink: These two RJ45 jacks provide the NexLink Tx (transmit) and Rx (receive) connections. Up to four NEXIA devices may be linked together to share digital audio signals. Tx on one NEXIA device is connected to RX on the next device. NexLink utilizes straight through shielded CAT5 cabling, with a maximum recommended length of 5 meters per cable. When multiple NEXIA devices are placed in the Layout, NexLink blocks allow routing of digital audio between linked devices.


Ethernet: All NEXIA devices use Ethernet, both for system programming and control. Programming is accomplished using the NEXIA software provided with each unit. NEXIA software is for PC computers, with Windows® XP Professiona/Vista operating system required. The PC computer must have a network card installed, which supports 10/100BaseT Ethernet. A 10/100BaseT Ethernet switch (not hub) is required when networking multiple units (see System Network Considerations). Ethernet utilizes standard CAT5 cabling, which has a specified maximum length of 100 meters. However, Ethernet switches which provide fiber-optic interface can be used to extend the physical distance between units within a network.


Serial Control Port: After initial programming and configuration, NEXIA systems may be controlled by RS-232 or Telnet communications from third-party control systems such as AMX® or Crestron®, using the Serial Control Port. Also, external devices may be controlled via the Serial Control Port, by utilizing Command String blocks within the NEXIA system design.


Remote Control Bus: The Remote Control Bus provides connection for Volume 8, Select 8, Volume/Select 8, Voltage Control Box, and Logic Box external control devices (see Remote Control Bus for more information).


Power Entrance: The Power Entrance provides connection for the appropriate power cord (included with unit). An internal universal switching power supply accepts 100~240VAC @ 50/60Hz, with a maximum power consumption of 65 Watts.




Front Panel Indicators: The Front Panel Indicators (I/O, Com, & Status) are 2-color LEDs.

The following table lists their behavior:


All LEDs green

Normal operating state. Configuration was successful (if applicable). Device is in a stable state awaiting commands.


I/O LED red

Internal audio hardware error.


Com LED red

Serial Port error.

Ethernet error.

CAN Bus error.

No IP address defined (cleared by setting IP address).


Status LED red

Configuration error.

Last configuration unsuccessful (cleared by 'reset/initializing' the device). Operating systems resource error.

File system error.

DSP error.


All LEDs blinking

Operating system is not executing. Device must be power cycled.


Status LED blinking

The firmware has attempted to perform an illegal operation. Device must be power cycled.