RTS WMS-300L User Manual

WMS-300L

Wall Mount User Station

Features

The WMS-300L Wall mount Speaker Station of a series of User Stations especially designed to work within the TW Intercom
System. It fits directly into a standard 4-gang electrical conduit box (2 1/4” deep). The rear section is not enclosed and sets the
back-box to provide a housing when installed.
This user station is perfect for permanent installations where a wall mounted station can provide an unobtrusive operating posi­tion. Most often it is located where the operator can conveniently attend to on-going operations while wearing a headset or lis­tening to the loudspeaker. Typically, the WMS-300L is a very practical user station since it can operate in an “open-listening”
mode with the panel-mounted loudspeaker as well as privately with a headset or a handset.
In the open-listening operating mode, with both the loudspeaker and an external microphone turned on, acoustic feedback is
suppressed by adjustment of a front panel sidetone (balance) control. This control cancels the originating microphone signal in
the local loudspeaker. Most any type of microphone can be used, a hand held push-to-talk microphone, a headset/handset
microphone, etc.
In the private operating mode, almost any headset or handset can be used while the loudspeaker is turned off. This method
can be extended by using the loudspeaker for monitoring and the headset or handset for conversation.
Practical operating features include two-channel selection, latching and momentary-action microphone on-off switches, a
speaker on-of
Screw terminals counted on the circuit card are provided for user station interconnection to line. A
as Belden 8723 or equivalent is recommended since it allows each channel to be carried over a shielded pair
the possibility of crosstalk between channels.

f switch, a sidetone control, and a headphone/loudspeaker volume control.

two pair shielded cable such

, thus reducing

Line Drawings

WMS-300L Specifications

Headset Connector

Dynamic Microphone

XLR type 4 or 5-pin connector version available

ine Connector

L

Screw Terminals

Dimensions

4.50” (114.30mm) high, 8” (44.5mm) wide, 1.75”
(44.45mm) deep

Weight

1 lbs (0.45 kg)

Finish

Light gray enamel paint

Power Consumption

Quiescent: 10 to 40 mA
Operating: 25 ohm phones: 50mA
Operating: 25-ohm phones + call light: 70mA

Contact Information

Telex® Communications, Inc.
12000 Portland Avenue South
Burnsville, MN 55337
Telephone: [phone]
Fax: [phone]

Form Number: 20055-1
August, 2005

Ordering Information

WMS-300L A4F

tion with an A4F headset connector • Catalog Number:
9000510700
WMS-300L A5F • 2 channel wall mount speaker statio
with an A5F headset connector • Catalog Number:
9000510709

This specifications information is preliminary and is subject to change without notification.
Brand names mentioned are the property of their respective companies.

• 2 channel wall mount speaker sta-