Specifications
5
Operating Manual - ne24.24M Matrix Processor
4. FRONT PANEL FEATURES
4.1 RS-232 Dataport
The ne24.24M has two RS-232 dataports wired in parallel, one on
the front panel and one on the back, for connecting to non-ethernet control
hardware. Protea NE Software does not work over RS-232.
4.2 Com LED
This green LED lights for a few seconds whenever there is com-
munication activity to the unit from a host PC. It is also used to respond
to an "identify device" command from NE software.
4.3 Preset Number
This displays the current preset number (1-31). The switch can be
disabled from software. To select a new preset, press and hold the switch
until the desired preset number is displayed. When the preset button is
released, the new preset is loaded. This display is also used to indicate
rmware revision during start-up, and status during factory reset.
4.4 Main Input Channel LEDs
The ne24.24M base unit has four xed input channels. Each input
channel’s two color Sig LED indicates input signal level of -20dB (green),
or +20dB clip (red) respectively. The Sig LEDs detect signal levels after
any gain adjustments are made within the ne24.24M preamp section. The
red input mute LED becomes lit when an input channel is muted through
software or remote control.
4.5 Main Output Channel LEDs
The four xed output channels on the ne24.24M have three color
LEDs to indicate signal, limiter threshold, and clip. The green signal LED
indicates -20dB output level. The amber limiter threshold LED depends on
settings established within Protea System Software, and, assuming the limiter
is active, indicates that sufcient signal level has been reached for the limiter to
begin the process of gain reduction. Clipping occurs at +20dB and is indicated
by a red LED. The red output mute LED becomes lit when an output channel
is muted through software or remote control.
4.6 Expansion Module LEDs
The ne24.24M is expandable by adding up to 16 additional inputs or outputs. Expansion modules of four inputs or
four outputs each can be eld installed by a qualied service technician. If an expansion card slot has been lled, its respective
amber LED (EXP 1, EXP 2, etc.) is automatically lit. The LED indicators on unused expansion slots do not light.