HP Visualize J200 Reference Manual page 6

Frequency Response
Input Sensitivity/Impedance
Max Output Level/Impedance
Output Impedance
Signal to Noise*
THD (w nominal load)
* To convert from dB to number of significant bits use the formula:
Keyboard Interfaces
The J Class workstation provides keyboard interfaces that allow either PS/2 or ITF keyboards. Consult
the documentation that accompanies each input device for specific information concerning its use.
PS/2 Keyboard Interfaces
The PS/2 connectors provide an interface for the keyboard and mouse to the system.
ITF Keyboard Interface
The HP HIL connector provides an interface for the ITF Keyboard to the system and all HP HIL devices.
HP Parallel I/O Interface
The 25–pin HP Parallel I/O interface uses Centronics interface protocols to support peripheral devices
such as printers and plotters. Consult the documentation that accompanies each peripheral device for
specific information concerning its use.
Table 1–2. Audio Electrical Specifications
Line in
Microphone
Line Out
Headphone
Speaker (internal)
Line Out
Headphone
Line Out
Headphone
Speaker
Line in
Microphone
Line Out
Headphone
Speaker
Line in
Microphone
n = dB
20 log
10
For example, for 61dB S/N then n= 61/6
significant bits, or in other words, about 6 bits of noise.
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
dB
.
6
10