Instruction manual

ACU-1000 Operations Manual
5-8 Interoperability Now
5.7.3 DSP-2 Specifications
Table 5-2 DSP-2 Specifications
RX Audio Input
Input Impedance
Balanced /Unbalanced 600
Ω
; Unbalanced 47k
Ω
.
Input Level
-26 to +12 dBm, programmable.
Frequency Response
100 Hz to 3200 Hz +
TX Audio Output
2 dB.
Output Impedance
Balanced or Unbalanced 600
Ω
Output Level
-26 to +12 dBm, programmable.
Frequency Response
100 Hz to 3200 Hz + 2dB.
Distortion
Less than 0.5%
Noise Floor
-65 dBm.
TX Audio Delay
0, 200, 400, 600, 800 ms
VOX/VMR
VOX/VMR Thresholds
Low, MED1, MED2, High; Programmable.
VOX Hang Time
175 ms to 1.575 S, Programmable in 200 ms steps.
VMR Hang Time
775 ms to 1.575 S, Programmable in 200 ms steps.
Audio Delay, VOX and COR Modes
20 ms to 300 ms Programmable in 40 ms steps
Audio Delay, VMR Mode
220, 260, or 300 ms, Programmable.
Transmit Key Tones
None, 1950 Hz, or 2175 Hz, Programmable.
Equalizer
Cut Settings at 3 kHz
5 dB, 3.5 dB, 2dB, 0 dB; Programmable.
Boost Settings at 3 kHz
5 dB, 3.5 dB, 2 dB, 0 dB; Programmable.
Time Domain DSP Noise Reduction
9 programmable levels.
Digital Inputs
COR Input Polarity
Active Low or Active High, Programmable.
AUX Inputs Polarity
Active Low.
Threshold
2.5V nominal.
Input Impedance
47kΩ to +5V.
Protection
+100V.
Digital Outputs
Standard Polarity
Active Low.
Type
Open Drain, weak pull-up 47k
Ω
to +5V.
Maximum Voltage
+60V.
On Resistance
5
Ω
nominal.
Maximum Current Sink
50 mA.
General
Front Panel
Link Active, COR, Signal, PTT, and Fault LEDs +
Ethernet connector
Rear
60 Pin PC edge connector for backplane.
Input Power
+12V, +Bus Voltage supplied by the backplane.
Size
Eurocard Module: 5’’H x 0.8’’W x 9’’D Nominal
Weight
1lb. (0.5kg).