Black Box ACU3009A User's Guide download pdf (Page 50)

APPENDIX D: SPECIFICATIONS

Serial Interface

Max Baud Rate Supported

19.2K Baud

Serial Data Format

Transparent

Signals Transferred

TX, RX, RTS, CTS, DTR, DSR

Local Unit Connector

DB9 Female (DCE)

Remote Unit Connector

DB9 Male (DTE)

Audio Interface

Description

Bi-directional stereo audio link

Transmission method

Digitized virtually CD quality audio (16-bit, 38.4kHz)

Signal levels

Line level (4 Volts Pk-Pk maximum)

Input Impedance

47kΩ

Local Unit Connectors

2x3.5mm stereo jack socket (Line In & Line Out)

Remote Unit connectors

2x3.5mm stereo jack socket (Line/Mic In & Line Out)

Microphone Support

Microphone may be connected to Remote Unit

Pullup resistor provides bias for condenser microphone

Option to set microphone amplification to +17dB

Power Requirements

Local Unit

5V at up to 200mA supplied by PC’s PS/2 keyboard port.

External PSU may also be connected through PS2

keyboard port

Remote Unit

All except ACU1007A

9V, 2A (18W) Regulated

(certified to all relevant safety standards)

Universal IEC Input

Isolated Output

2.5mm DC Jack (Center Positive)

ACU1007A Remote Unit

5V, 3A (18W) Regulated

(certified to all relevant safety standards)

Universal IEC Input

2.1mm DC Jack (Center Positive)

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Black Box ACU3009A User's Guide Page 50

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