Link electronic Switch PAF 821 User Manual

800 SERIES  
LINK ELECTRONICS, INC.  
8X2 STEREO AUDIO FOLLOW, RS-232/485  
MODEL PAF-821  
MADE IN THE USA  
FEATURES  
8 Inputs X2  
Digital Switching  
Balanced Differential  
One Rack Unit Cabinet  
Output Impedance, 66  
RS-232, RS-422, RS-485  
The PAF-821 is a professional stereo audio follow  
switcher for its video companion. The high  
impedance balanced input circuits reduce loading  
effects and noise on the incoming signals. The low  
output impedance of 66provides a maximum  
level of +24dBu. The input and output connections  
are printed circuit spring terminal blocks. The  
terminal blocks provide reliable clampingactionfor  
secure and reliable operation due to a force  
amplifying hinge motion.  
There are no push buttons on the front panel as  
the PAF-821 gets its control functions from the  
VSW series switchers or RS-232 from a computer.  
Multiple switchers can be controlled by a single  
remote control panel, PSR series. The PAF-821 is  
RS-232 controlled and remote control is RS-422 or  
RS-485 via an RJ11 telephone connector and  
cable assembly.  
The PAF-821 is the stereo audio follow companion  
switcher for the VSW-822 video switche. With  
digital switching logic combined with high  
performance audio circuitry this forms the  
foundation for the next generation of audio routing  
switchers. All VSW, ASW, PAF and PSR series  
units occupies on rack space. Each unit includes  
a power supply for reliable operation.  
A nine pin female D connector provides serial  
interfacetocomputerormodemforRS-232control  
which is standard in all units. The switcher is  
available in other models for stereo, mono or four  
channel operation.  
LINK  
ELECTRONICS, INC. 2137 Rust Avenue Cape Girardeau, MO 63703-7668  
Phone 573 334 4433 FAX 573 334 9255  
 

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