User Guide Twisted Pair MTP 4T 15HD RS Quad MTP Twisted Pair Transmitter for VGA and RS-232 68-1398-01 Rev.
Safety Instructions • English This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product’s enclosure that may present a risk of electric shock. Caution Read Instructions • Read and understand all safety and operating instructions before using the equipment.
FCC Class A Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation.
Conventions Used in this Guide In this user guide, the following are used: CAUTION: NOTE: TIP: A caution indicates a potential hazard to equipment or data. A note draws attention to important information. A tip provides a suggestion to make working with the application easier. WARNING: A warning warns of things or actions that might cause injury, death, or other severe consequences. Copyright © 2012 Extron Electronics. All rights reserved.
Table of Contents Introduction ............................................................ 1 About the MTP 4T 15HD RS ................................. 1 Twisted Pair (TP) Cable Advantages ...................... 3 Transmission Distance ...................................... 3 Installation and Operation .................................. 4 Installation ........................................................... 4 Tabletop Placement .......................................... 4 Rack Mounting ...............
Introduction This section discusses the following topics: • About the MTP 4T 15HD RS • Twisted Pair (TP) Cable Advantages CAUTION: Do not connect this device to a computer data or telecommunications network. About the MTP 4T 15HD RS The Extron MTP 4T 15HD RS Quad MTP Twisted Pair Transmitter consists of four MTP T 15HD RS transmitters in a single enclosure.
The RS-232 portion of the TP link: • Can be bidirectional in each system that includes just one receiver (not a daisy chain); that is, the receiver can receive commands from the transmitter and pass RS-232 responses back to the transmitter. NOTE: • By default, the RS-232 portion of the TP link is unidirectional only, from the transmitter to the receiver. If there is only one receiver in the system, you can configure that receiver for bidirectional RS-232 communications.
Twisted Pair (TP) Cable Advantages Twisted pair cable is much smaller, lighter, more flexible, and less expensive than coaxial cable. These TP products make cable runs simpler and less cumbersome. Termination of the cable with RJ-45 connectors is simple, quick, and economical. Transmission Distance • The maximum distance is determined by the frequency and resolution of the signal that is input to the transmitter.
Installation and Operation This section covers the following topics: • Installation • Connections and Settings • Front Panel Controls and Indicators • Skew Delay Compensation Installation CAUTION: Installation and service must be performed by authorized personnel only. The MTP 4T 15HD RS is 1U high and a full rack wide. It is rack mountable, or it can be placed on a table or other furniture. Rubber feet and rack mounting hardware are included.
Installation instructions Mount the MTP 4T 15HD RS in a rack as follows: 1. If feet were installed on the bottom of the transmitter assembly, remove them. 2. Attach the included rack/through-desk mounting brackets (part number 70-077-03) to the unit using eight machine screws supplied with the mounting kit. Optional Rack Mounting Bracket Figure 1. Attaching the Mounting Brackets 3. Insert the unit into the rack and align the holes in the mounting brackets with the holes in the rack.
Connections and Settings See figure 2 to identify the rear panel connections on the transmitter. 4 100-240V 0.3A MTP T 15HD RS 1 RS-232 RS-232 PRE-PEAK Tx Rx Tx Rx ON 50/60 Hz 1 INPUT MONITOR 2 3 OFF OUTPUT 5 INPUT 6 2 Figure 2. Transmitter Assembly’s Rear Panel Features NOTE: There is one item a, powering all four transmitters. There are four items b through f, one for each transmitter.
e Pre-Peak switch — The Pre-Peak switch alters the TP signal output to correct for long cable runs. See the table on page 3 for suggested switch settings based on the transmitted video format and transmission distance. f Transmitter Output connector — Connect one end of a TP cable to this RJ-45 female connector on the transmitter. Connect the free end of the same TP cable from the transmitter to the receiver’s Input RJ-45 female connector.
Receiver considerations NOTES: • Each transmitter in the assembly requires a separate receiver. • The receivers’ buffered outputs do not provide pre-peaking control. The total recommended distance for an entire daisy chain is the same as for a single transmitter and receiver. The transmitter’s Pre-Peak switch has the same effect on the recommended transmission distance for a daisy chain as for a single transmitter and receiver.
SEQ Receiver Skew Compensation The MTP 15HD RS SEQ receiver has built-in skew compensation capabilities. Refer to the MTP 15HD RS Series User Guide for details. Non-SEQ Receiver Skew Compensation Try using the following methods to minimize or eliminate pair skew: • Switch to the Extron Enhanced Skew-Free AV UTP cable. • Add a skew compensation cable equal to the length of pair skew to the receiver’s output.
Reference Information Specifications Video Gain ���������������������������������������������� Unity Number/signal type ������������������������ 4 sets of proprietary analog signals Connectors ����������������������������������� 4 female RJ-45 Video input and loop through — per transmitter Number/signal type ������������������������ 1 analog RGBHV, RGBS, RGsB, RsGsBs, component video (with bi-level or tri-level sync), S-video, or composite video 1 buffered RGBHV, RGBS, RGsB, RsGsBs local monitor loop
NOTE: Protocol is mirrored between the transmitter and the receiver.
Part Numbers MTP transmitter and receivers NOTE: A complete transmission system requires one of the four transmitters built into the MTP 4T 15HD RS and at least one MTP receiver.
Extron Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase.
