Rolls MS112 - User Manual

SPECIFICATIONS:
IN Connectors: XLR
OUT Connectors: XLR
Size: 3.75"w x 5"d x 1.5"h
Thick powder coated steel chassis..
100% Handcrafted in Salt Lake City, UT.
Rolls Corporation
Salt Lake City, UT
9/19
Made in USA
ww.rolls.com
Made in USA
ww.rolls.com
MS112
Push to talk
XLR A-B switch
All this and it is 100% Handcrafted in Salt Lake City, UT.
What's in the box?
1 - Made in USA MS112
1 - This owners manual
1 - Rolls PS27s Power supply
Thank you for purchasing the MS112. We sincerely appreci-
ate the opportunity to build a product for you and participate
in your love of quality music and sound. We love what we do
and we’re happy to help. Rolls products are hand built in Salt
Lake City, Utah by people who care about high quality audio.
MS112 XLR A-B switch
- XLR female input and XLR male output jacks
- Selectable Momentary or latching
- Status indicator to let you see what output is active
- Bottom panel screw holes for convenient mounting
This device momentarily mutes (or talks) a microphone
or XLR signal between the A or B XLR outputs. This
function is very handy in the event of a sneeze, cough,
or other possible distracting noise. Or when you need to
control when a mic is active for announcing or paging.
Or when switching between two di󰀨erent outputs.

Summary

MS112 XLR A-B Switch Overview

Key Features

Highlights XLR jacks, selectable momentary/latching modes, status indicator, and mounting provisions.

Functional Description

Explains the device's ability to mute or switch microphone/XLR signals between outputs.

Technical Specifications

Details input/output connectors, physical dimensions, and chassis construction.

MS112 Operation and Controls

Connection and Signal Flow

Describes connecting XLR cables and signal routing via the A/B outputs based on switch state.

Power and Indicator Details

Details the 9-15 VDC power input and the function of the status LED indicator.

Mode and Ground Lift Switches

Explains the switches for momentary/latching operation and ground lift for the A output.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features
5. Operation Summary

The Rolls MS112 is a "Push to Talk" XLR A-B switch designed to control the routing of an XLR signal, typically from a microphone, between two different XLR outputs (A and B). This device is handcrafted in Salt Lake City, UT, and is built with a thick powder-coated steel chassis, ensuring durability.

Function Description:

The primary function of the MS112 is to momentarily mute or "talk" a microphone or XLR signal by switching it between two XLR outputs. When the switch is pressed and held, the signal is sent to output A. Releasing the switch routes the signal back to output B. This functionality is particularly useful in situations where a user needs to temporarily mute their microphone to prevent distracting noises like sneezes or coughs from being transmitted. It also serves as a convenient tool for controlling when a microphone is active for announcements or paging, or for switching between two different destinations for an audio signal. The device can be configured for either "momentary" or "latching" operation via an internal switch, which is accessible from the side of the unit. In momentary mode, when powered on and the switch is not pressed, the signal is sent to output B.

Important Technical Specifications:

• Model: MS112
• Input Connectors: XLR (female)
• Output Connectors: XLR (male)
• Power Requirement: 9-15 VDC (connects to the included Rolls PS27s power adapter)
• Dimensions: 3.75" (width) x 5" (depth) x 1.5" (height)
• Chassis Material: Thick powder-coated steel
• Manufacturing: Made in USA, 100% Handcrafted in Salt Lake City, UT.

Usage Features:

• XLR Female Input and XLR Male Output Jacks: Standard XLR connections for seamless integration into existing audio setups.
• Selectable Momentary or Latching Operation: An internal switch allows users to choose between two modes:
  • Momentary: The signal is sent to output A only while the switch is pressed and held. Upon release, it returns to output B. This is ideal for temporary muting or "push-to-talk" applications.
  • Latching: The switch toggles between output A and output B with each press, staying in the selected state until pressed again. This is useful for more permanent switching between two destinations.
• Status Indicator LED: A visual cue to show which output is currently active. The light indicates when the signal is present on output A. When the light is off, the signal is sent to output B.
• Bottom Panel Screw Holes: Provides a convenient option for mounting the device securely in a fixed location.
• Ground-Lift Switch for A Out XLR: This feature helps to eliminate hum and buzz caused by ground loops, ensuring a cleaner audio signal from output A.

Maintenance Features:

• The manual does not explicitly detail maintenance features beyond the initial setup and configuration. However, the robust construction with a thick powder-coated steel chassis suggests a durable design that requires minimal maintenance under normal operating conditions. The "Made in USA" and "100% Handcrafted" labels imply a commitment to quality and longevity.

Operation Summary:

To operate the MS112, connect your balanced XLR microphone or signal source to the female input jack. Then, connect the male XLR output jacks (A and B) to your desired destinations (e.g., mixer, amplifier). Power the unit using the provided Rolls PS27s power adapter. Configure the internal switch for either momentary or latching operation based on your needs. When in momentary mode, pressing and holding the switch sends the signal to output A; releasing it sends the signal to output B. The status LED will illuminate when output A is active. The ground-lift switch can be engaged if ground loop noise is present on output A.

Rolls MS112 Specifications