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| APPENDIX E: SPECIFICATIONS |
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| Serial Interface |
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| Max Baud Rate Supported | 19.2K Baud |
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| Serial Data Format | Transparent |
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| Signals Transferred | TX, RX, RTS, CTS, DTR, DSR |
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| Local Unit Connector | DB9 Female (DCE) |
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| Remote Unit Connector | DB9 Male (DTE) |
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| Audio Interface |
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| Description |
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| Transmission method | Digitized virtually CD quality audio |
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| Signal levels | Line level (4 Volts |
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| Input Impedance | 47kΩ |
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| Local Unit Connectors | 2x3.5mm stereo jack socket (Line In & Line Out) |
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| Remote Unit connectors | 2x3.5mm stereo jack socket (Line/Mic In & Line Out) |
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| Microphone Support | Microphone may be connected to Remote Unit |
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| Pullup resistor provides bias for condenser microphone |
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| Option to set microphone amplification to +17dB |
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| Power Requirements |
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| Local Unit | 5V at up to 275mA supplied by USB port |
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| External PSU may also be connected to 2.1mm DC Jack |
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| (Center Positive) |
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| Over Voltage Protection: >5.6V |
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| Under Voltage Protection: <4.3V |
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| Remote Unit | 5V Regulated, 20W, PSU included |
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| (certified to all relevant safety standards) |
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| Universal IEC Input |
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| Connector: 2.1mm DC Jack (Center Positive) |
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| Remote unit takes 250mA, remainder available for |
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| connected USB devices. |
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| Over Voltage Protection: >5.6V |
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