Grass Valley Telethon 3G User Manual
Telethon 3G User Guide
M4041-9900-102
24 July 2014
Notices
Copyright & Trademark Notice
Copyright © 2007–2014, Grass Valley. All rights reserved.
Belden, Belden Sending All The Right Signals, and the Belden logo are trademarks or
registered trademarks of Belden Inc. or its affiliated companies in the United States and
other jurisdictions. Grass Valley, Telethon 3G are trademarks or registered trademarks of
Grass Valley. Belden Inc., Grass Valley, and other parties may also have trademark rights in
other terms used herein.
Terms and Conditions
Please read the following terms and conditions carefully. By using Telethon 3G
documentation, you agree to the following terms and conditions.
Grass Valley, a Belden Brand (“Grass Valley”) hereby grants permission and license to owners
of Telethon 3G to use their product manuals for their own internal business use. Manuals
for Grass Valley products may not be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photocopying and recording, for any purpose
unless specifically authorized in writing by Grass Valley.
A Grass Valley manual may have been revised to reflect changes made to the product
during its manufacturing life. Thus, different versions of a manual may exist for any given
product. Care should be taken to ensure that one obtains the proper manual version for a
specific product serial number.
Information in this document is subject to change without notice and does not represent a
commitment on the part of Grass Valley.
Warranty information is available in the Support section of the Grass Valley Web site
(www.miranda.com).
Title Telethon 3G User Guide
Part Number M4041-9900-102
Revision 24 July 2014
ii
Table of Contents
1 About Telethon 3G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
About the Telethon 3G System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Fiber Cable Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Unpacking the Telethon 3G. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Product Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety and Fiber Optic Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Optical Fiber Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FCC Part A Manual Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Block Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Telethon 3G Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Telethon 3G Front Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Power and Display Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Area A – SDI/DATA IN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Area B – SDI/DATA OUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Area C– Fiber SDI/Data In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Area D– Fiber SDI/Data Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Telethon 3G Rear Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Area F- Rear Panel Power Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Redundant Power Supply Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Power Connector Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Area G – CAN BUS Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Area H – The ST Fiber Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Fiber ADAP Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
4 Telethon 3G Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fiber Optical Channel Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Using the Telethon 3G Optical Measurement Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Telethon 3G Optical Measurement Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Condition 1: No Optical Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Condition 2 - Optical Link good but no SDI data present. . . . . . . . . . . . . . . . . . . . . . . 20
Condition 3 - Active usable optical link with SDI Data . . . . . . . . . . . . . . . . . . . . . . . . . 20
System Firmware Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Technical Information Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Standard Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
iii
Table of Contents
5 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
iv
About Telethon 3G
This chapter provides an overview of the Telethon 3G and includes the safety and warranty
information about it.
About the Telethon 3G System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Safety and Fiber Optic Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Product Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1
About Telethon 3G
Front Panel
Rear Panel
About the Telethon 3G System
About the Telethon 3G System
The Telethon 3G 8x8 Transceiver is a single optical and electrical multiplexer that combines
up to eight HD/SDI signals and eight optical signals on a pair of Single-Mode Fiber Optic
Cables at distances up to 30km. The system is bidirectional capable of sending and
receiving four HD/SDI signals and four optical signals.
This Telethon 3G is delivered in a single standard model – the Model TN3-GRNP-W8W8 with
4 x 4 HD + 4 x 4 optical over two fibers.
Fig. 1-1: Telethon 3G Front and Rear Panels
A pair of Telethon 3G units (one at each end of the two Fiber Optic cables) accepts electrical
digital signals (via BNC), ranging from 19.4 Mbps up to 3Gbps uncompressed HD/SDI and
optical signals of up to 3Gbps each, and multiplexes them for transmission in both
directions. The CWDM (coarse wavelength division multiplexing) capability of the Telethon
3G system increases the capacity of fiber optic cables and in the case of the Telethon 3G
reduces 16 channels down to two fiber optic cables.
Along with LEDs to indicate the presence of an HD/SDI signal at each BNC input and output,
the Telethon 3G features an integrated optical power meter for monitoring the received
power for each optical HD/SDI signal.
The Telethon 3G also features dual 12-18 VDC power inputs for electrical redundancy.
Each optical channel can support up to 3Gbps. The transceiver handles a wide range of
digital video rates. Supported formats include:
• 3 Gb/s HD/SDI: SMPTE 424M
• 1.5 Gb/s HD/SDI: SMPTE 292M
• 143 Mb/s: SMPTE 259M
• 270 Mb/s DVB/ASI (re-clocked)
• 19.4 Mb/s ATSC: SMPTE 310M
• Non-standard digital signals to 3 Gb/s
The unit is interoperable with industry standard optical HD/SDI signals to/from other
equipment, such as Rattler™, Diamondback™, SHED™, HDX™, and Viper™ series frames and
modules, as well as other manufacturers' routers, DAs, etc.
ThisexampleinFigure 1-2 is just oneofmanypossibleusesfortheTelethon 3G. I t features
aremotelocation(perhapsanauditoriumvenue)whereaseriesofdevicesarecombined
togetheronasingle
2
Telethon 3GunitandtransmittedtoaTele t h on 3 Gunitatacentral
Telethon 3G
User Guide
productionfacility.Inturn,monitoringandintercomsignalsarereturnedfromthe
centralproductionfacilitytothevenue.
Fig. 1-2: Possible uses for the Telethon 3G
Fiber Cable Overview
Fiber Optics and Fiber Optic Cable are the core technologies at the heart of the Telethon 3G
System. The ability to multiplex and de-multiplex a variety of video, audio, and data signals
so that they can be carried over a thin strand of Fiber Optic cable for long distances enables
the Telethon 3G. The specific theory and operation of Fiber Optics is beyond the scope of
this document.
Unpacking the Telethon 3G
Please consult your packing slip and purchase order to ensure that you have received all of
the expected components.
Inspect all components for scratches and other mechanical damage, and inspect the
electrical connectors for bent or damaged pins and latches. Report any missing or
damaged components to Grass Valley (see Product Returns on page 4).
Fig. 1-3: Single Mode Fiber Optic Cable Cross-Section
Leave the protective caps on the optical connectors whenever the fiber is disconnected.
3
About Telethon 3G
Product Returns
Product Returns
In the unlikely event of damage to your Telethon 3G during shipping or delivery,take note
of any damage with the delivery or shipping service. If any component does not work
correctly out of the box, contact Grass Valley Support (see Contact Us on page 25).
If the problem cannot be remedied through a service telephone call, you will receive an
RMA number (Return of Merchandise Authorization). Please note this RMA number inside
and outside of all shipping boxes and on all documentation provided with the items to be
returned.
Safety and Fiber Optic Systems
Optical Fiber Safety
Never look directly into the end of the optic fiber while either end of the system is
operating.
This Telethon 3G contains CDRH Class 1 laser devices. To prevent damaging your eyes,
always avoid looking directly at, or staring into, the laser light located on an optical
connector or on the end of a fiber.
Infrared radiation is produced at the fiber connection port on the rear of the TX units and at
the end of any un-terminated optical fibers that are attached to this port. Avoid any direct
exposure to the light that comes from these sources.
Do not power up the unit when no fiber is attached to the fiber port.
There are no user adjustments inside the Telethon 3G. Do not attempt any type of service to
this instrument other than any as instructed this manual. Refer all servicing to the Grass
Valley (see Contact Us on page 25).
Always use cable connector caps when the cables are not connected. This protects the
connector from damage and the unlikely event of exposure to an operating optical link.
Keeping the caps in place when the connectors are not in use will prevent dirt and dust
from entering the connector and degrading the performance of the optical link.
FCC Part A Manual 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. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and radiates radio frequency
(RF) energy and, if not installed and used in accordance with this User Guide, may cause
harmful interference to radio communications.
4
Block Diagrams
This chapter lists the block diagrams of the Telethon 3G models.
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5
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