HP Visualize J5000 hp Visualize J5000, J7000 workstations owner's guide (a4476 - Page 32

Table 1-1 summarizes the audio electrical specifications for this workstation. Table 1-1. Audio Electrical Specifications Frequency Response Input Sensitivity/Impedance Line in Microphone Max Output Level/Impedance Line Out Headphone Speaker (internal) Output Impedance Line Out Headphone Signal to Noise* Line Out Headphone Speaker Line In Microphone THD (w/nominal load) Line Out Headphone Speaker Line In Microphone 25-20,000Hz 2.0Vpk/47kohm 22mVpk/1kohm 2.8Vpp/47kohm 2.75Vpp/50ohm 5.88Vpp/48ohm 619ohm 118ohm 65dB 61dB 63dB 61dB 57dB -73dB -70dB -68dB -75dB -73dB ~ *To convert from dB to number of significant bits, use the formula: n = dB 20 log  dB . 6 For example, for 61dB S/N then n= 61/6  10 10 significant bits, or in other words, about 6 bits of noise. Keyboard Connectors PS/2 Keyboard Connectors The PS/2 connectors provide an interface for the keyboard and mouse to the system. Consult the documentation that accompanies each input device for specific information concerning its use. 1-14