Specifications

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Architect and Engineer Specifications: SymNet Express Cobra.
The series of four DSP audio matrix devices shall include four different configurations of balanced mic/line inputs and balanced line outputs on plug-in barrier-strip connectors.
These configurations shall be 12x4, 4x12, 8x8, and 4x4. Each shall be offered with CobraNet compatibility. Additionally each device shall include two analog control inputs, one
open collector output, and one relay output on plug-in barrier-strip connectors, ARC interconnect on one RJ-45 connector, ARC Audio on one plug-in barrier strip connector, and
24 VDC backup power on one 4-pin male XLR connector. The devices shall include one RJ-45 connector for CobraNet network audio. Audio inputs and outputs shall be analog,
with internal 24-bit A/D & D/A converters operating at a sample rate of 48 kHz. All internal processing shall be digital (DSP). Software shall be provided for creating/ connecting
DSP system components within each hardware device. Available system components shall include (but not be limited to) various forms of: mixers, equalizers, filters, crossovers,
dynamics/gain controls, routers, delays, remote controls, meters, generators, onboard logic, and diagnostics. Ethernet or serial communications shall be utilized for software
control and configuration. After initial programming, processors may be controlled via dedicated software screens, third-party RS-232 control systems, and/or optional analog
or RS-485 remote control devices. A designer software application shall operate on a Windows computer, with network card installed, running Windows® 98/2000/XP. The DSP
series shall be CE marked, CSA tested to UL 60065.
The DSP series shall be SymNet Express Cobra.
Mechanical Data
Item Specifications Remarks
Space Required
1U (WDH: 48.3 cm x 27.4 cm x 4.37 cm / 19 in x 10.8 in x
1.72 in). Depth does not include connector allowance.
Allow at least 1 inch additional clearance for rear panel connections. Additional depth
may be required depending upon your specific wiring and connections.
Electrical
100 to 240 VAC, 50-60 Hz, 60W maximum. No line voltage switching required.
Ventilation
Maximum recommended ambient operating tempera-
ture is 30 C / 86 F.
Fan on equipment right pulls hot air out of device. Air intake at equipment left. Ensure
that the left and right equipment sides are unobstructed (5.08 cm, 2 in minimum
clearance). The ventilation should not be impeded by covering the ventilation open-
ings with items such as newspapers, tablecloths, curtains, etc.
Shipping Weight
6 kg (12 lbs.)
!
Main Power: Accepts power from detachable IEC power cable
(100-240 VAC, 50-60 Hz, 60 Watts max).
@
Aux Power: Accepts power from Symetrix model PS-7 or user-supplied
auxiliary power connection (24 VDC, 2.5 Amps, 60 Watts max).
#
ARC Audio: Splits a single analog line level audio signal off of the
ARC port. Can be wired to a line level analog input or output jack for
remote audio over CAT5.
$
ARC: Distributes power and RS-485 data to one or more ARC devices.
%
RS-485: Connects to a Control I/O, ARC-PS, ARC or other Symetrix
SymNet family RS-485 controller, wired in parallel (A to A, B to B and
GND to GND) using shielded twisted pair. Port Settings: 38.4 kbaud
(default), 8 data bits, 1 stop bit, no parity, no flow control.
^
RS-232: Serial communications interface for SymNet Designer on the
host PC or a 3rd party accessory controller. (Mode is determined by the
“RS-232: Host / Acc” mode switch.) Port Settings (Host): 115
or 57.6 kbaud, 8 data bits, 1 stop bit, no parity, no flow control. Port
Settings (Acc): 38.4 kbaud (default), 8 data bits, 1 stop bit, no parity,
no flow control.
&
Device Config: Configures the RS-232 port mode, RS-232 port host
mode baud rate and Ring Number (device address).
*
Ethernet: 10/100 Base-T Ethernet port for SymNet Designer host
control over IP. IP control must be setup from SymNet Designer via
RS-232 first for security.
(
CobraNet/Ethernet: 10/100 Base-T Ethernet port for CobraNet
audio, 16 send and 16 receive channels. (Future software versions
may support SymNet Designer host control over IP+CobraNet on this
same port.)
BL
Relay Out: 1 SPDT relay rated at 3 Amps, 24 VDC, resistive; 0.3 Amps,
60 VDC, resistive and can be wired normally open or normally closed.
This relay can also be used for power failure detection or emergency
alarm system integration.
BM
O/C Out: 2 open collector outputs with a paired common ground pin.
O/C outputs go low (0V) when active, and are internally pulled high
(5V) when inactive and can drive external LED indicators directly.
BN
Control In: 2 analog control inputs able to be used as 2 potentiometer
inputs, 2 mechanical rotary encoder inputs, or as 4 switch inputs
(+5 VDC reference voltage supplied).
BO
Analog Outputs: 4, 8 or 12 analog line level audio inputs with
individually software-selectable level of -10 dBV or +4 dBu.
BP
Analog Inputs: 4, 8 or 12 analog mic / line level audio inputs with
individually software-selectable phantom power and level of -50 dBu,
-40 dBu, -20 dBu, -10 dBV or +4 dBu.