American Fibertek MRT-880 User manual

© Copyright 2003, American Fibertek, Inc. 0617JD
Instruction Manual
MRT-880
MRR-880
Eight Channel Video Multiplexer

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Table of Contents

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Functional Description........................................................................ 4
Installation.......................................................................................... 4
Power Source..................................................................................... 5
Power Connection.............................................................................. 5
Input / Output Connections................................................................. 5
MRT-880 Status LED Indicators......................................................... 6
MRR-880 Status LED Indicators ........................................................ 7
Warranty............................................................................................. 8
Service Information ............................................................................ 8

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INSTALLATION AND OPERATION INSTRUCTIONS
INTRODUCTION
Thank you for purchasing your American Fibertek Series 880 multimode eight channel
video multiplexer. Please take a few minutes to read these installation instructions in
order to obtain the maximum performance from this product.
FUNCTIONAL DESCRIPTION
The 880 Series units operate as a transmitter / receiver pair for the transmission of eight
simultaneous, real time baseband NTSC/PAL video signals over a single multimode fiber
optic cable.
The MRT-880 transmitter accepts eight video inputs and multiplexes these signals onto
a single optical output port for connection to the fiber transmission system.
Correspondingly, the MRR-880 receiver converts the optical signal to eight independent
video output signals.
The 880 Series units operate on 50 um or 62.5 um multimode fiber. Refer to the data
sheets for detailed performance specifications.
The individual units may be configured for rack mounting or wall mounting depending
upon the position of the included mounting hardware.
INSTALLATION
THE INSTALLATION OF THESE UNITS SHOULD BE MADE BY A QUALIFIED
SERVICE PERSON(S) AND MUST CONFORM TO ALL LOCAL CODES.
To install the MRT-880 or MRR-880 it is first necessary to mount the rack flanges to the
unit.
For rack mounting the ears are installed on the
sides of the unit with the surfaces that have
oval holes flush with the front of the unit as in
Figure 1. Mount the ears with the #10 flathead
screws provided. To mount in the rack cabinet,
use mounting screws that are appropriate for
the rack cabinet being used.

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For mounting the unit flush to a wall or other
rigid surface, the ears may be installed on the
sides with the oval holes flush with the bottom of
the unit as in Figure 2. Mount the ears with the
#10 flathead screws provided. Mount the unit to
a rigid surface using #10 (5mm) screws.
POWER SOURCE
The internal power supply accepts universal line voltage. Any mains supply from (85 to
264 VAC), (47 to 63 Hz) may be used without modification or adjustment. A universal
power connector is provided on the rear of the unit to facilitate connection to the power
mains.
POWER CONNECTION
The unit is supplied (in the US and UK only) with a three conductor power cord. The
“ground” conductor is directly connected to the chassis.
INPUT / OUTPUT CONNECTIONS
The fiber optic connection is made via a ST connector located at the back of the unit. Be
sure to allow sufficient room for the required minimum bend radius of the fiber cable
used.
Video input and output connections are located on the rear of the unit. A BNC connector
is provided for each channel. The video inputs are connected to an appropriate 75Ω
baseband video source such as a camera or a video recorder output. The 75Ωvideo
outputs can be looped through typical baseband video inputs of switchers, recorders and
other equipment as required. For proper operation, the outputs must be terminated with
75Ω. For optimum performance the video cables should be the shortest length of coax
practical.

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MRT-880 STATUS INDICATORS
The MRT-880 transmitter provides the following front panel LED status indicators to aid
in installation and troubleshooting:
VIDEO
A bi-color LED indicator is provided for each of the eight video channel inputs. AC power
and video status associated with each of these LEDs are summarized below.
Video Presence LED AC Power Status Video Status
Green On Proper Input Video Present
Red On Input Video Not Detected
Off Off Status Unknown

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MRR-880 STATUS INDICATORS
The MRR-880 receiver provides the following front panel LED status indicators to aid in
installation and troubleshooting:
OLI 1
A bi-color LED indicator monitors the optical input signal that is being sent to the MRR-
880 from video channels one through four of the MRT-880. AC power and optical input
status associated with this LED are summarized below.
Optical Level Indicator AC Power Status Optical Status
Green On Proper Optical Input Power Present
Red On Optical Input Not Detected
Off Off Status Unknown
OLI 2
A bi-color LED indicator monitors the optical input signal that is being sent to the MRR-
880 from video channels five through eight of the MRT-880. AC power and optical input
status associated with this LED are summarized below.
Optical Level Indicator AC Power Status Optical Status
Green On Proper Optical Input Power Present
Red On Optical Input Not Detected
Off Off Status Unknown
LIFETIME WARRANTY INFORMATION
American Fibertek, Inc warrants that at the time of delivery the products delivered will be
free of defects in materials and workmanship. Defective products will be repaired or

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replaced at the exclusive option of American Fibertek. A Return Material Authorization
(RMA) number is required to send the products back in case of return. All returns must
be shipped prepaid. This warranty is void if the products have been tampered with. This
warranty shall be construed in accordance with New Jersey law and the courts of New
Jersey shall have exclusive jurisdiction over this contract. EXCEPT FOR THE
FOREGOING WARRANTY, THERE IS NO WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE, EXPRESSED OR
IMPLIED, WHICH EXTENDS BEYOND THE WARRANTY SET FORTH IN THIS
AGREEMENT. In any event, American Fibertek will not be responsible or liable for
contingent, consequential, or incidental damages. No agreement or understanding,
expressed or implied, except as set forth in this warranty, will be binding upon American
Fibertek unless in writing, signed by a duly authorized officer of American Fibertek.
SERVICE INFORMATION
There are no user serviceable parts inside the unit.
In the event that service is required to this unit, please direct all inquiries to:
American Fibertek, Inc. Phone: [phone]
120 Belmont Drive Phone: [phone]
Somerset, NJ 08873 FAX [phone]
E-mail: [email protected]