Pico Macom PFT-10 User manual

PFT Owners Manual
PFTSeries 1310nm Optical Transmitter
PICO MACOM
Please read this manual thoroughly before use.
Keep this manual handy for future reference.
Visit Our Web-Site www.picomacom.com
Contact Us 858.546.5050
Toll Free 800.421.6511

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This manual is intended for use by purchasers of Pico Macom PFT Series Transmitter(s) and their qualified tech-
nicians. This document is the property of Pico Macom and embodies proprietary subject matter. All design,
manufacture, reproduction, use and sale rights regarding the same are expressly reserved. This manual may
not be reproduced without written consent from Pico Macom. All copyright, patent and trade secrets for this
manual, the product, and its included software are expressly reserved by Pico Macom.
SAFETY CONSIDERATIONS
For user safety, one or more of the caution labels shown here may be affixed to the side or rear
panels of this equipment. The significance of the two symbols enclosed by triangles is described
below.
This symbol means that dangerous voltages are present within the equipment. These
voltages are not insulated and may be of sufficient strength to cause serious bodily
injury if touched. This symbol may also appear on schematics.
This symbol calls attention to a critical procedure or means that refer you to the in-
struction manual for operating or service information. Only qualified service person-
nel are to install or service the equipment. This symbol may also appear in text and
on schematics.
WARNING: To reduce the risk of fire or electrical shock, do not expose this equipment to rain or
moisture.
Pico Macom PFT 1310nm Optical Transmitter
OWNERS MANUAL
CAUTION
RISK OF ELECTRICAL SHOCK
Do Not Open
Avis – Risqué de choc electrique Ne Pas Ouvrir

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IMPORTANT SAFEGUARDS
Pico Macom strongly advises you to read and understand the following safety instructions prior to installing
and operating this equipment.
•Read These Instructions First. All safety and operating instructions should be read before installing or
operating this equipment. Safety and operating instructions should be retained for future reference
•Retain This Instruction Manual Safety and operating instructions should be retained for future reference.
•Heed Warnings All warnings on the equipment and in this Owner’s Manual should be adhered to.
•Ventilation Do not block or cover openings in this equipment. These are provided for ventilation and
protection from overheating. Maximum operating ambient temperature is 40°C.
• Power Sources Operate this equipment only from the type of power source indicated on the rear panel.
CAUTION: For continued protection against risk of fire, replace the fuse (if necessary) with one of
only the same type and rating.
•Grounding or Polarization This equipment may be equipped with a polarized AC line plug (a plug hav-
ing one blade wider than the other or a different shape.). This plug will fit into the power outlet only one
way. This is a safety feature. If you are unable to insert the plug into the outlet, try reversing the plug. If
the plug still does not fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety
purpose of a polarized plug.
•Servicing Refer all servicing to qualified personnel. Opening or removing covers may expose dangerous
voltages. When replacement parts are required, make sure the service technician uses only replacement
parts recommended by Pico Macom. Unauthorized substitutions may result in fire, electric shock, or im-
proper operation of the unit.
•Cleaning Unplug the unit from the AC power outlet before cleaning. Do not use liquid or aerosol
cleaners.
•Lightning. For added protection during a lightning storm or when the equipment is left unattended or
unused for long periods, unplug it from the power outlet and disconnect the cables between the equip-
ment and the antenna subsystem. These precautions will prevent damage to the equipment that could be
caused by lightning strikes or power line surges.
•NOTE TO CATV SYSTEM INSTALLERS: This reminder is provided to call your attention to NEC Articles
810-21, 820-22, and 820-40 that provide guidelines for proper grounding. In particular, these articles
specify that the cable ground shall be connected to the building grounding system, as close to the point
of cable entry as practical.
•Optical Output Safety, General. 1310nm Optical Transmitter units may emit harmful invisible laser
radiation. These products may emit harmful laser radiation if powered on and the case is opened or the
beam path is exposed.

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Laser Safety Information:
The PFT-1310 Optical Transmitter modules are classified as Class 1M per IEC/EN 60825-1/A2:2001. This prod-
uct complies with FDA/CDRH, 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice
No. 50 dated 26 July, 2001.
Viewing the laser output with certain optical instruments (for example, eye loupes, magnifiers and micro-
scopes) within a distance of 100 mm may pose an eye hazard.
Laser power up to 20 mW at 1310 nm could be accessible if optical connector is open or fiber is broken.
Lasers are on (powered) whenever the DLC chassis is powered.
CAUTION: Use of controls, adjustments, and procedures other than those specified herein may result in haz-
ardous laser radiation exposure.

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TABLE OF CONTENTS
Chapter 1 Introduction ................................................................................................................................6
1. Introducing the Pico Macom PFT 1310nm Optical Transmitter .....................................................6
2. Features .........................................................................................................................................7
Chapter 2 Specifications ..............................................................................................................................8
1. RF Performance..............................................................................................................................8
2. Optical Performance......................................................................................................................8
3. General..........................................................................................................................................8
Chapter 3 Installation and Operation ..........................................................................................................9
1. Unpacking the Unit........................................................................................................................9
2. Before Mounting ............................................................................................................................9
3. Rack Mounting...............................................................................................................................9
3.1 Spacing..........................................................................................................................................9
3.2 Cooling..........................................................................................................................................9
3.3 Securing the Unit ...........................................................................................................................9
4. Making Rear Panel Connections.....................................................................................................10
4.1 Power Connection and Initial Power Up ........................................................................................10
4.2 Checking Optical Power Output ....................................................................................................10
4.3 RF Input Connections.....................................................................................................................11
5. Front Panel Operations ..................................................................................................................11
5.1 Using the Status Button ..................................................................................................................12
5.2 Selecting AGC Mode......................................................................................................................12
5.3 Selecting MGC Mode.....................................................................................................................12
5.4 Adjusting Input Level for Reduced Number of RF Channels ...........................................................12
6. Connecting to Your Fiber Network................................................................................................. 13
7. Remote Control.............................................................................................................................. 13
8. Maintenance .................................................................................................................................. 13
8.1 Decreased Output Due to Contamination ...................................................................................... 14
Chapter 4 Input Level versus Channel Loading ............................................................................................ 15
Chapter 5 Output Power by Model.............................................................................................................. 16
WARRANTY ............................................................................................................................................... 17

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Chapter 1
Introduction
1. Introducing the Pico Macom PFT 1310nm Optical
Transmitter
1310 nm OPTICAL TRANSMITTER STATUSSTATUS RF AGC ON/OFFRF AGC ON/OFF
MGC
ADJUST
LASER
LASER ON/OFFLASER ON/OFF
RF
AGC
MGC
RFRF RF TEST PORT
PFT-1310mn Optical Transmitter
The PFT-x 1310nm Optical Transmitter is a 1 RU (1.75 high x 19 inches) chassis with one 1310 nanome-
ter (nm.) Optical Transmitter included. The PFT accepts an analog input in the 54 to 860 MHz range and
modulates this RF signal onto an internally generated optical signal source for transmission over single
mode optical fiber systems to a distant optical receiver that removes the original RF signals from the optical
carrier and outputs the 54 to 860 MHz RF signal for further use at that location. The use of the 1310nm
Optical Transmitter allows transmission over distances beyond reasonable RF transmission distances with
significantly less impairments. Users or this device will include anyone carrying video and data in a RF
signal; most commonly, cable companies that need to add one to a handful of additional 1310 nm signals
to an existing headend or hub, or add a single remote RF signal carriage from a hub or secondary headend
back to the main headend or to another hub.
The PFT-x may be ordered with a range of optical output powers by substituting the desired power (in dBm)
for the ‘-x” in PFT-x. This power is fixed in the factory at time of manufacture, based on part and design
selections. Users should identify the ‘link’ budget for the distances, splits, and splices in their fiber, plus
the optical power needed for their receiver input before ordering the transmitters. (Pico Macom also offers
PFR Optical Forward Receivers for this application.) Users may add external optical attenuation to tune
(reduce) the optical power into their link if the transmitter output is higher than the application needs. (Pico
Macom offers optical passives for this purpose.) Contact your Pico Macom Sales Representative for further
assistance if needed.
Optical output connectors on the Pico Macom PFT are SC/APC type, common to the cable industry and
used for their low loss and back reflection. Other connectors, most commonly, FC/APC type are used and
may be available; see your sales representative for special ordering.
The PFT accepts an RF signal within the 54 to 860 MHz range, using a cable industry standard F-connector.
This signal may carry analog NTSC modulated carriers or QAM carriers or any mixture of analog and QAM
carriers. The signal may be one 6 MHz modulated channel (or less) or up to 134 channels. Specification
for RF signal input are based on 78 channels of load (power) and users are encourage to adjust input levels
up or down depending on load to optimize RF signal C/N, CTB, and CSO distortions at the receive site.

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The PFT offer both manual RF gain control (MGC) and automatic RF gain control (AGC) modes. Users are alerted
to the mode which has been selected by two LEDs that indicate either AGC mode or MGC mode is active. For
most RF signals, users may select AGC mode to control variations in the RF signal over time and maintain consis-
tent modulation of the RF signal onto the optical carrier. This is the recommended mode. A RF level LED alerts
the user when the RF signal level may be excessively low, too low for the AGC to maintain consistent operation.
For situations where the RF signal is low level or low power (low number of channels in the RF signal), the MGC
mode allows you to set the gain as needed in your system.
The PFT transmitter includes an autoranging power supply and may be installed in 120 or 240 VAC systems by
purchasing an appropriate power cord at the local PC computer shop if the supplied cord is not appropriate.
Operation is simple and, once set-up within the constraints of your application, the PFT will continued to operate
unattended. The PFT will return to your set operating condition after power outages and brown-outs.
This manual details the unit specifications, describes any issues that may be critical to your installation, discusses
the operation, and, finally, outlines actions if you have problems with the unit. If you read and follow the instal-
lation and operation chapters, the PFT should provide you years of simple, reliable operation
2. Features
• Wide bandwidth, 54~860MHz, high-performance single-mode 1310nm optical fiber transmitter
• Supports analog and QAM digital applications
• Wide range laser options, from 6dBm to 14dBm (4mW to 26mW), for multiple broadband
applications
• Optical power monitoring of input RF, and laser status
• RS232 port
• Manual or automatic gain controls RF input level
• Automatic gain controlled input allows unit to maintain the same optical output with varying
inputs without distortion
• Input voltage between 90-260Vac, unit can be used for NTSC and PAL systems
• Front panel RF test port -20dB
• Low power consumption

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Chapter 2
Specifications
1. RF Performance
SPECIFICATION LIMITS
Frequency Range 50 to 860 MHz (EIA channels 2~135)
Connector F-connector, female
Impedance 75 ohm
Input Return Loss > 15 dB
Input RF Level +15 to 20 dBmV
AGC Control Range + 5 dB
MGC Control Range + 5 dB
RF Frequency response (flatness) + 1 dB
Carrier–to-Noise Ratio > 50 dBc*
Composite Second Order (CSO) > 65 dBc*
Composite Triple Beat (CTB) > 68 dBc*
Front Panel Test Port Level -20 dB from Input
* Results based on 110 channel Matrix carrier input, fiber link, and -1 dBm optical receiver input level.
2. Optical Performance
SPECIFICATION LIMITS
Wavelength 1310 nm.
Output Level (varies by model number) 6, 7, 8, 9, 10, 11, 12, 13, 14 dBm
Output Connector SC/APC (FC/APC optional)
OMI 4%
3. General
SPECIFICATION LIMITS
Input power 90 VAC to 264 VAC at 47 Hz to 63 Hz, 30 watt typ.
Power cord NEMA 15P to IEC320 male on chassis
Fuse 5MF 500/250V (BEL) (spare in IEC320 socket)
Temperature Range -10 to +50°C (+40°C max. recommended)
Relative Humidity (non-condensing) 0 to 95%
Altitude 0 to 15,000 ft
Weight 9.15 lb.
Size: 1 RU (1.75”)H x 19”W x 13”D

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Chapter 3
Installation and Operation
1. Unpacking the Unit
Please inspect the cartons on receip and note damage to the carton and inspect for possible
unit damage. If damage is found, please contact shipper immediately, before unpacking, to
follow that shipper’s procedure for claims.
Please open the carton and unpack carefully. Locate items such as the owner’s manual and
power cord. Do not connect a unit to power if there is serious mechanical damage to prevent
possibly unsafe conditions.
2. Before Mounting
The PFT transmitter has no internal configuration switches and no internal user adjustments or
controls. To prevent unsafe conditions, please do not open the unit. Opening the PFT trans-
mitter will also void the warranty.
3. Rack Mounting
The unit is designed for installation in an EIA Standard 19-inch (480 mm) equipment rack.
3.1 Spacing
It is generally a good practice to leave one open slot (approximately 1 3/4 inch) between units
to allow for cooling and provide maximum reliability. From the front of the rack, cover any
open slots with a blank plate to prevent dust from entering the rack.
3.2 Cooling
If other equipment is installed in the same rack or nearby racks as the PFT transmitter, check
to ensure that adequate cooling measures have been provided for all equipment in the rack.
Do not restrict the airflow through the equipment’s vents on the top cover. The PFT has been
designed to effectively dissipate its own heat, but heat from other rack-mounted components
may adversely affect the unit, including side exhaust from equipment in an adjacent rack.
3.3 Securing the Unit
Slide the PFT transmitter into the rack opening. Please use FOUR mounting screws in the front
panel mounting handles. (Included with unit) Insert one screw in the lower hole on the left
and on the right, and then snug both screws to hold the chassis. Place additional screws in the
upper holes, and screw until snug. Tighten all four screws equally and securely.

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4. Making Rear Panel Connections
90-240VAC
47-63HZ
REMOTE CONTROLRF IN OPTICAL OUT
PFT Transmitter Rear Panel
4.1 Power Connection and Initial Power Up
Insert the supplied power cord into the IEC320 male power socket on the chassis. Plug the
opposite end of the cord into your local power source. The PFT includes an autoranging power
supply for power source of 120 or 220 or 240 VAC, 50 or 60 cycles
• Make sure the power connection includes a third wire ground; please do not use two wire
extension cords between the Mains and the PFT transmitter.
• If the power cord supplied does not match your local power sockets, please acquire a replace-
ment at the local PC computer sore with the correct plug. A qualified technician may cut the
supplied plug off the cord, strip the wires and affix an appropriate plug, but please use a three
connection power plug and connect all three wires in the cord
After connecting the power cord, the unit will begin to operate. There is no on-off switch.
The front panel channel window should light up momentarily after power is applied. Observe
the front panel LASER LED; if this is lighted green, press LASER ON_OFF button to turn off the
transmitter output and the LED becomes red.
Because there is no RF input connection at this time, RF LED will be flashing and the Status
display window will display “Warning … RF Input too low!”
The STATUS button allows you to step though the various displays as you press repeatedly.
A tone is heard when you press this button.
4.2 Checking Optical Power Output
At this point, you may check the optical power output if desired, if you have an optical power
meter and a fiber jumper.
• Press the STATUS button until the power output display is visible.
• The power output will stabilize after a short period of time of operating. When the power
output displayed stabilizes (at the transmitter’s target output level), you may make the measure-
ment.
• Remove and retain the cover of the rear panel optical connector, or lift the hinged lid of the
bulkhead connector if so equipped. Prepare the jumper by cleaning the optical tip. Failure to
clean the fiber cables inserted into the PFT transmitter will cause dirt to accumulate in the PFT
connector and decrease output power.
Failure to clean the Fiber cables beFore insertion into the PFt is considered abuse and
rePairs due to dirty connectors are not covered under warranty.