Telex Power Supply SPS 2001 User Manual

SPS-2001  
Power Supply  
The SPS-2001 is a versatile power supply that can be used in a variety of Telex Audiocom intercom system applications. It is  
ideal for applications where it is desirable to use a master station with a panel mic / speaker combination. The SPS-2001 directly  
accepts any AC input power from 100 to 240 VAC, 50/60 Hz, and it can be configured to power two separate intercom channels  
or one large intercom channel with twice the intercom station capacity. Additionally, the SPS-2001 can be configured for compat-  
ibility with Clear-Com Intercom Systems. The SPS-2001 can be rack mounted or used on a desktop. For rack mounting, optional  
hardware is required. For desktop use, four non-marring rubber feet are supplied.  
Features  
Speaker Inputs and Volume Control  
Intercom Channel Connectors  
Two audio inputs are provided. The inputs are combined  
internally and sent as a monaural signal to the internal  
speaker amplifier. The volume control adjusts the level to the  
front panel speaker. Typically, these inputs are used with the  
speaker outputs of a master station when the master sta-  
tion is set for use with a panel mic and speaker instead of a  
headset.  
When the Combine/Isolate switch is set to the Isolate posi-  
tion, each channel connector is powered separately and has  
completely separate intercom audio. When the Combine/Iso-  
late switch is set to the combine position, each channel is  
still powered separately, but the audio signals are combined  
so that all users on both channels can intercommunicate.  
Telex Audiocom / Clear-Com Selector Switch  
This selector switch sets the SPS-2001 for compatibility with  
either Telex Audiocom (BALANCED) or Clear-Com (UNBAL-  
ANCED). Compatibility includes channel connector pin-outs,  
channel power requirements, and call signaling require-  
ments. The SPS-2001 is shipped with this switch in the Telex  
Audiocom position.  
Combine/Isolate Switch  
This recessed push-button switch lets you combine the audio  
signals of the two channels to create a single audio channel  
where all users can intercommunicate. Or, you can isolate  
each channel to create two groups of completely indepen-  
dent users.  
Channel Status Indicators And Reset Push-Button  
The indicators are green for normal operation and red when  
there is an overload or short circuit. The reset push-button  
restores normal operation after the short-circuit or overload  
has been located and fixed.  
Instantaneous Auto-Reset  
Instantaneous Auto Reset (IAR), the newest technology in  
performance and safety, which uses a revolutionary new  
circuitry that dynamically monitors line fault conditions. Then,  
when the fault is removed, automatically brings individual  
power supply channels up.  
Universal AC Power Input  
The SPS-2001 accepts any input power in the range of 100-  
240 VAC, 50/60 Hz.  
Clear-Com Compatible  
Line Drawing  
 

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