ProPlex FOH Friend™

USER MANUALProPlex FOH Friend User Manual

ProPlex-FOHfriend-UserManual-v1.3
Effective 7 June 2021

© Copyright 2021, TMB
All rights reserved

TMB authorizes its customers to download and print
this electronically published manual for professionaluse only. TMB prohibits reproduction, modification or
distribution of this document for any other purposes,
without express written consent.
Specifications are subject to change without notice.
The information in this document supersedes all
previously supplied information before the effective
date listed above. TMB has confidence in the accuracyof the document information herein but assumes noresponsibility or liability for any loss occurring as adirect or indirect result of errors or exclusions whetherby accident or any other cause.

ProPlex FOH Friend User Manual v1.3—7 June 2021

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Overview
The ProPlex FOH Friend is a timecode/audio switching device, allowing programmers to instantly switch
between two timecode and two audio track sources. With all the outputs and controls needed fortimecode and audio, the FOH Friend allows the programmer to make use of every minute of valuableprogramming time. Durable and compact, the FOH Friend goes anywhere. Just a few of the features
include:•••••••

Independent gain controls for XLR audio output + true headphone amp with 1/4” and 3.5mm
jacks
Three passive XLR timecode outputs, unaffected by power failure
Two audio + two timecode inputs all with combination XLR/1/4” TRS connectors
Selector switches for independent selection of audio + timecode inputs
USB powered
Will also function as a main/backup timecode or audio switch
Optional Single and Dual RackMount Kits availableFront and Rear Panels

Tech Notes•••••••

Timecode out[puts are separated with 600 Ohm transformers.
There are two separate potentiometers for Headphone and Audio Outputs.
USB-C power is required only for the headphones amplifier.
Timecode Splitter Outputs work without USB Power
There are separate selectors for Timecode and Audio Inputs.
The Ground Lift button separates Output ground from Input Ground.
USB Headphone power has an LED indicator.

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System Diagram

ProPlex FOH Friend User Manual v1.3—7 June 20214Appendix
Limited Warranty
ProPlex Data Distribution Devices are warranted by TMB against defective materials or workmanship fora period of two (2) years from the date of original sale by TMB.
TMB’s warranty shall be restricted to the repair or replacement of any part that proves to be defectiveand for which a claim is submitted to TMB before the expiration of the applicable warranty periods.
This Limited Warranty is void if the defects of the Product are the result of:• Opening the casing, repair, or adjustment by anyone other than TMB or persons specificallyauthorized by TMB• Accident, physical abuse, mishandling, or misapplication of the product.
• Damage due to lightning, earthquake, flood, terrorism, war, or act of God.
TMB will not assume responsibility for any labor expended, or materials used, to replace and/or repair
the Product without TMB’s prior written authorization. Any repair of the Product in the field, and any
associated labor charges, must be authorized in advance by TMB. Freight costs on warranty repairs are
split 50/50: Customer pays to ship defective product to TMB; TMB pays to ship repaired product,
ground freight, back to Customer.
This warranty does not cover consequential damages or costs of any kind.
A Return Merchandise Authorization (RMA) Number must be obtained from TMB prior to return of any
defective merchandise for warranty or non-warranty repair. For all repairs please contact TMB Tech
Support Repair using the contact information below or email TechSupportRepairNA@tmb.com.
US527 Park Ave.
San Fernando, CA 91340
Tel: +1 818.899.8818
Fax: +1 818.899.8813
tmb-info@tmb.com
www.tmb.com

UK21 Armstrong Way
Southall, UB2 4SD England
Tel: +44 (0)20.8574.9700
Fax: +44 (0)20.8574.9701
tmb-info@tmb.com
www.tmb.com

Return Procedure
Please send returned merchandise prepaid and in the original packing. Freight call tags will not be
issued for shipping the product to TMB, but TMB will pay the freight for return to the customer. Clearlylabel package with a Return Merchandise Authorization Number (RMA #). Products returned without an
RMA # will delay service. Please contact TMB and request an RMA # prior to shipping the unit. Be
prepared to provide the model number, serial number, and a brief description of the cause for the return.
Be sure to properly pack the unit; any shipping damage resulting from inadequate packaging is thecustomer’s responsibility. TMB reserves the right to use its own discretion to repair or replace
product(s). Proper UPS packing or double-boxing will better ensure product integrity when shipped.

Note: If you are given an RMA #, please include the following information on a piece of paper inside
the box:1) Your name2) Your address3) Your phone number
4) The RMA #5) A brief description of the symptoms

ProPlex FOH Friend User Manual v1.3—7 June 2021

5Specifications
Part Number

PPFOHF743M

DC Power

5 VDC only for headphone amplifier

Power Consumption

0.1 A

CoolingPassive

Power Connectors

USB-C

Timecode Input Connectors

2x Neutrik XLR female with combination 1/4” TRS

Audio Input Connectoers

2x Neutrik XLR female with combination 1/4” TRS

Timecode Output Connectors

3x Neutrik XLR Male with 600 Ohm transformers

Audio Output Connectors

1x Neutrik XLR Male, 1x 1/4” TRSHeadphone Output Connectors

1x 1/4” TRS Headphone Jack, 1x 3.5 mm TRS Jack

Operating Temperature-20 to +40 °C

Unit Dimensions (HxWxD)

1.72 x 7.22 x 5.07” [43.7 x 183.5 x 128.7 mm]

Shipping Dimensions (HxWxD)

4 x 8.5 x 5.5” [101.6 x 215.9 x 139.7 mm]

Unit Weight

1.2 lb [0.54 kg]

Shipping Weight

1.4 lb [0.64 kg]

Optional RackMount Kits

PP1RMKITSS - ProPlex 1U RackMount Kit, Small, Single
PP1RMKITSD - ProPlex 1U RackMount Kit, Small, Dual

Dimensions

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6RackMount Kit

ProPlex FOH Friend User Manual v1.3—7 June 2021

7CONTACT INFORMATIONLOS ANGELES HEADQUARTERS
527 Park Avenue | San Fernando, CA 91340, USA
Tel: +1 818.899.8818 | Fax: +1 818.899.8813
sales@tmb.com

TMB 24/7 TECH SUPPORTUS/Canada: +1.818.794.1286
Toll Free: 1.877.862.3833 (1.877.TMB.DUDE)
UK: +44 (0)20.8574.9739
Toll Free: 0800.652.5418
techsupport@tmb.com

LOS ANGELES +1 818.899.8818
LONDON +44 (0)20.8574.9700
NEW YORK +1 201.896.8600
BEIJING +86 10.8492.1587
CANADA +1 519.538.0888

A full service company providing technicalsupport, customer service, and follow-up.
Providing products and services for the industrial,entertainment, installation, defense, broadcast,research, telecommunications, and signage industries.
Servicing the global market from offices inLos Angeles, London, New York, Toronto, and Beijing.

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