Telex Power Supply PS 2001L User Manual

PS-2001L  
Power Supply  
The PS-2001L is a versatile power supply that can be used in a variety of Telex Audiocom intercom system applications. It direct-  
ly accept any AC input power from 100 to 240 VAC, 50/60 Hz and can be configured to power two separate intercom channels  
or one large intercom channel with twice the intercom station capacity. Additionally, the unit can be configured for compatibility  
with Clear-Com Intercom Systems. The unit may 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  
Combine / Isolate Switch  
Intercom Channel Connectors  
When in the Combine position, the unit will combine the  
audio signals of the two channels to create a single audio  
channel where all users can intercommunicate. When in the  
Isolate position, the unit will create two groups of completely  
independent users.  
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 /  
Isolate 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.  
Channel Status Indicators  
The indicators are green for normal operation and red when  
there is an overload or short circuit. The circuitry in the unit  
will automatically reset when the overload or short circuit is  
located and fixed.  
BAL / UNBAL Selector Switch  
This selector switch allows the user to configure the unit for  
use in either an Telex Audiocom (BALANCED) or Clear-Com  
(UNBALANCED) system. Compatibility includes channel  
connector pin-outs, channel power requirements, and call  
signaling requirements. The default setting for this switch is  
in the Telex Audiocom (BAL) position.  
Universal AC Power Input  
The unit accepts any input power in the range of 100-240  
VAC, 50/60 Hz.  
Clear-Com Compatible  
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.  
Line Drawing  
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