
Introduction
5
Specifications
Analog Inputs and Outputs
Signal Type ...............................................................balanced
Nominal Level ............................................................... 8dBu
Maximum Level........................................................... 20dBu
Input Impedance ...................................................... 22k Ohm
Output Impedance..........................600 Ohm SNR at 20 dBu:
A/D and D/A
Sampling Rate............................................................. 48 kHz
Resolution.................................................................... 24 bits
Performance
SNR at 20 dBu: (A-weighted) ..................................... >90dB
THD+N at 20dBu, 1 kHz (unweighted) ...................<0.007%
Frequency Response at 20 dBu..... within ±1dB from 50 Hz -
20kHz
Crosstalk at 20dBu................................................... <-60 dBu
CMRR......................................................................... >70 dB
NOTE: All measurements performed using an Audio
Precision System 1 Dual Domain System at f=1kHz and
Level = 20dBu. Measurement bandwidth = 20Hz to 20kHz.
Connections
Intercom Channels (1-32)
Connector Type: 6-pin RJ-12
Pin 1...................................................................... Control -
Pin 2.................................................................Audio Out +
Pin 3................................................................... Audio In +
Pin 4.................................................................... Audio In -
Pin 5...................................................................Audio Out-
Pin 6..................................................................... Control +
Serial Interface Port (J1 - J6)
Connector Type: 9-pin female D-sub
J1: RS-232 (AZedit)
Pin 1......................................................................Not Used
Pin 2............................................................................ GND
Pin 3............................................................... Input RS-232
Pin 4......................................................................Not Used
Pin 5......................................................................Not Used
Pin 6......................................................................Not Used
Pin 7............................................................................ GND
Pin 8.............................................................Output RS-232
Pin 9......................................................................Not Used
J2: RS-232 (Debug)
Pin 1...................................................................... Not Used
Pin 2 .................................................................. Input RS-232
Pin 3 ................................................................Output RS-232
Pin 4 .........................................................................Not Used
Pin 5 ............................................................................... GND
Pin 6 ............................................................................... GND
Pin 7 .........................................................................Not Used
Pin 8 .........................................................................Not Used
Pin 9 .........................................................................Not Used
J3: RS-232/RS-485 (J3 is trunking)
Pin 1 ....................................................RS-485- / RS-485 +
Pin 2 ........................................................................... GND
Pin 3 .....................................................................Not Used
Pin 4 .....................................................................Not Used
Pin 5 ..........................................................Output RS-422+
Pin 6 ....................................................RS-485- / RS-485 +
Pin 7 ........................................................................... GND
Pin 8 .....................................................................Not Used
Pin 9 ......................................................... Output RS-422 -
J4: RS-232/RS-485 (J4 is for peripheral devices, such as
UIO-256, PAP-32)
Pin 1 .....................................................RS-485- / RS-485 +
Pin 2 ............................................................................ GND
Pin 3 ......................................................................Not Used
Pin 4 ......................................................................Not Used
Pin 5 .......................................................... Output RS-422+
Pin 6 .....................................................RS-485- / RS-485 +
Pin 7 ............................................................................ GND
Pin 8 ......................................................................Not Used
Pin 9 .......................................................... Output RS-422 -
J5: RS-485 (J5 is PAP-32)
Pin 1 ......................................................................RS-485 -
Pin 2 ............................................................................GND
Pin 3 ..................................................................... Not Used
Pin 4 ..................................................................... Not Used
Pin 5 ..................................................................... Not Used
Pin 6 .....................................................................RS-485 +
Pin 7 ............................................................................GND
Pin 8 ..................................................................... Not Used
Pin 9 ..................................................................... Not Used
J6: RS-232 (J6 is undefined)
Pin 1 ...................................................................... RS-485 -
Pin 2 ............................................................................ GND
Pin 3 ..................................................................... Not Used
Pin 4 ..................................................................... Not Used
Pin 5 ..................................................................... Not Used
Pin 6 ..................................................................... RS-485 +
Pin 7 ............................................................................ GND
Pin 8 ..................................................................... Not Used
Pin 9 ..................................................................... Not Used
USB Connectors (front end and back end J7)
Connector Type.............................................Standard USB
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