Telex SPS2000A User Manual

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Telex

User Instructions

SPS2000A

1

RESET

2

Model SPS2000A
Power Supply

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Audiocom

Intercom Systems

R

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Volume

FCC Statement

This equipment uses, and can radiate radio frequency energy that may cause in­terference to radio communications if not installed in accordance with this man­ual. The equipment has been tested and found to comply with the limits of a
Class A computing device pursuant to Subpart J, Part 15 of FCC Rules which
are designed to provide reasonable protection against such interference when op­erated in a commercial environment. Operation of this equipment in a residential
area may cause interference which the user (at his own expense) will be required
to correct.

This product meets ElectromagneticCompatibility Directive 89/336/EEC.

Introduction

Thank you for purchasing the Audiocom® SPS2000A Power Supply. We hope
that this power supply, used together with your Audiocom User Stations, will
satisfy your intercommunication requirements for many years to come. To get
the most out of your new power supply, please take a few moments to look
through this booklet before using the SPS2000A for the first time.

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Table of Contents

Description .............4

Installation .............6

Unpacking ............6

Configuration Switches ..........6

Intercom Channel and Program Connections .....6

Power-Up Check ...........11

Specifications ............13

Factory Service and Parts Information .......14

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Audiocom®

Description

The SPS2000A is a versatile power supply that can be used in a variety of 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 SPS2000A 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 in-

tercom station capacity. Additionally, the SPS2000A can be configured for compatibil-

ity with Clear-Com* Intercom Systems. The SPS2000A 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.

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Combine

Volume

Isolate

SPS2000A

1

2

Reset

123

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100-240 VAC 60/50 HZ

SPEAKER

LINE LEVEL

1VRMS

INPUT 1

INPUT 2

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CHN 1

CLASS 2 WIRING 1.5A 24VDC

CHN 2

MADE IN USA

Figure 1. SPS2000A Reference View

(See following numbered descriptions)

1. Speaker, Inputs, and Volume Control: 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 station is set for use with a panel mic and speaker instead of a headset.

* Brand names mentioned are the property of their respective companies.

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2. Combine / Isolate Switch: This recessed, pushbutton 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 independent users.

3. Channel Status Indicators and Reset Pushbutton: The indicators are green for nor­mal operation and red when there is an overload or short circuit. The Reset push­button restores normal operation after the short-circuit or overload has been
located and fixed.

4. Universal AC Power Input: The SPS2000A accepts any input power in the range
of 100-240 VAC, 50/60 Hz.

5. Intercom Channel Connectors: When the Combine / Isolate switch is set to the
Isolate position, 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.

6. Audiocom / Clear-Com Selector Switch (Figure
SPS2000A for compatibility with either Audiocom (BALANCED) or Clear­Com (UNBALANCED). Compatibility includes channel connector pin-outs,
channel power requirements, and call signaling requirements. The SPS2000A is
shipped with this switch in the Audiocom position.

2): This selector switch sets the

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