SkyTrac Systems Ltd.
Document Rev. 01.020
DOC0334
Page 13 of 49
Restricted Proprietary and Confidential Information
2 S
YSTEM
S
PECIFICATIONS
2.1 General
This section contains tables that list the physical and electrical requirements and specifications of
each component in the ISAT-200 system.
2.2 Power Requirements for the ISAT-200 System
Table 4
— Power Requirements
Component
Power Requirements
ISAT-200
Input Voltage: 10 to 32 VDC, 28 VDC nominal
Average Power: 14 W typical, 25W maximum
2.3 Audio Interface
Table 5
— Audio Interface Specifications
Audio Output
150 mW minimum into 600 or 300 ohm.
Side Tone
Software Enabled
Microphone
Carbon or Equivalent
Microphone Input
0.007 Vrms to 1.4 Vrms maximum.
Microphone Input Impedance
1K ohms
Microphone Excitation
Software Enabled Bias: 10 VDC maximum
Protection
Audio output short circuit protected
2.4 Digital and Analogue I/Os
Table 6
— Digital and Analog I/Os
Ground Seeking Digital Inputs
100 Ohms max for ground state, Maximum: 35 VDC
Voltage Seeking Digital Input
> 5 Volts for logic high, Maximum: 40 VDC
Analogue Inputs
Maximum: 40 VDC
Current Sinking Outputs
Maximum: 36 VDC, 200 mA
Aux Power Output
6 Volts, 0.8 A output
RS-232 Ports
Meets requirements of TIA/EIA-232-F standard
TX maximum: +/- 13.2 V, RX maximum: +/- 25V
RS-485 Ports
Meets requirements of TIA/EIA−485−A standard
Extended Common Mode: -20V to 25 V
Fail-safe receiver: Open circuit, short circuit, bus idle
The document reference is online, please check the correspondence between the online documentation and the printed version.
