Black Box ACU2222A - Manual (Page 63)

SERVSWITCH BRAND CATX KVM EXTENDER FAMILY
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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 47k Ω
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 Power Unit 5V at up to 200mA supplied by PCs PS/2 keyboard port.
External PSU may also be connected
Remote Power Supply 9V Regulated, 10W
Universal IEC Input
Isolated Output
2.5mm DC Jack (Center Positive)