ATX QFHPN User manual

INSTALLATION & OPERATION MANUAL
QFHPN High Power Optical Node with AGC
www.atxnetworks.com
www.atxnetworks.com
Enhance
HFC
®
D3.1/CCAP
™
Compliant

Although every effort has been taken to ensure the accuracy of this document it may be necessary, without notice, to make amendments or correct omissions.
Specications subject to change without notice.
SignalOn®Series, MAXNET®, HFC Enhance®, PCI Filters®, Q-Series®& FiberLinx®are registered trademarks of ATX in the United States and/or other countries. SMACSM is a
service mark of ATX in the United States and/or other countries. Products or features contained herein may be covered by one or more U.S. or foreign patents. Other non-ATX
product and company names in this manual are the property of their respective companies.

HFC Enhance®– QFHPN High Power Optical Node with AGC – Installation & Operation Manual i
TABLE OF CONTENTS
1. IMPORTANT SAFEGUARDS ............................................. 1-1
2. INSTALLATION AND OPERATION ........................................ 2-1
2.1 Installation....................................................... 2-2
2.2 Mounting........................................................ 2-2
2.3 Grounding....................................................... 2-2
2.4 Connecting COAX ................................................ 2-2
2.5 Connecting Optical Fibers .......................................... 2-2
3. POWER UP AND TEST ................................................. 3-1
3.1 Connect the Power Adapter ......................................... 3-1
3.2 Verify Signal Levels ............................................... 3-1
3.3 Fine-tuning the Compact Node to the RF Network........................ 3-2
3.4 Changing the RF Attenuation ........................................ 3-2
3.5 Changing the RF Equalization ....................................... 3-2
4. SPECIFICATIONS...................................................... 4-1
5. SERVICE & SUPPORT.................................................. 5-1
5.1 Contact ATX Networks ............................................. 5-1
5.2 Warranty Information .............................................. 5-1

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HFC Enhance®– QFHPN High Power Optical Node with AGC – Installation & Operation Manual 1-1
CHAPTER 1: IMPORTANT SAFEGUARDS
IMPORTANT SAFEGUARDS
1. Important Safeguards
ATX Networks strongly advises you to read 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.
• Retain This User Manual – Safety and operating instructions must be retained for future reference.
• Ventilation – The optical node should be kept at a distance from other objects to keep from overheating. Maximum
operating ambient temperature is 131°F (55°C).
• Power Sources – The mains circuit should be a dedicated, un-switched supply. Keep the unit away from high voltage
or other interference creating devices such as motors, compressors, etc.
CAUTION: For continued protection against risk of fi re, replace circuit breakers/fuses
(if necessary) with one of only the same type and rating.
OPTICAL OUTPUT SAFETY: Optical compact node units may emit harmful invisible laser
radiation if powered on and the case is opened or the beam path is exposed.
The ATX Networks’ QFHPN compact node is classi ed as Class 1M per IEC/EN 60825-1/A2:2001. This product 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, magni ers and Miniscopes) within a distance
of 100 mm may pose an eye hazard.
Laser power up to 26 mW at 1310 nm could be accessible if optical connector is open or  ber is broken. Lasers are Powered
ON whenever the unit is powered.
CAUTION: Use of controls, adjustments, and procedures other than those specifi ed herein
may result in hazardous laser radiation exposure.
INVISIBLE LASER RADIATION
DO NOT VIEW DIRECTLY
WITH OPTICAL INSTRUMENT
CLASS 1M LASER PRODUCT
CAUTION

1-2 HFC Enhance®– QFHPN High Power Optical Node with AGC – Installation & Operation Manual
CHAPTER 1: IMPORTANT SAFEGUARDS
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HFC Enhance®– QFHPN High Power Optical Node with AGC – Installation & Operation Manual 2-1
CHAPTER 2: INSTALLATION AND OPERATION
INSTALLATION AND OPERATION
2. Installation and Operation
1. Downstream RF output level test port (-20dB)
2. Downstream RF output / Upstream RF input
3. Upstream RF test port (-20dB)
4. Power input +5~+8VDC
5. Upstream ber output
6. Downstream ber input
7. Grounding lug and screw
8. Mounting screw slot
9. Control buttons
10. 3-digit Status display
11. Power ON /alarm LED
12. Mode LED RF LEVEL power
13. Mode LED Optical in/out power
14. Mode LED Attenuation settings
15. Mode LED Equalization settings (tilt)
1. Downstream RF output port 1
2. Downstream RF output port 2
3. Downstream ber input
4. Power input +5~+8VDC
5. Grounding lug and screw
6. Mounting screw slot
7. Control buttons
8. 3-digit Status display
9. Power ON /alarm LED
10. Mode LED RF LEVEL
11. Mode LED Optical in/out power
12. Mode LED Attenuation settings
13. Mode LED Equalization settings (tilt)
Figure #1 – QFHPN 2-way Compact Node
Figure #2 – QFHPN 1-way Receive Only Compact Node
1 2 3 456
7
8
9
10
1112131415

2-2 HFC Enhance®– QFHPN High Power Optical Node with AGC – Installation & Operation Manual
CHAPTER 2: INSTALLATION AND OPERATION
2.1 Installation
The ATX Networks QFHPN compact node is designed to operate in a utility room or closet. It must be placed in a location
where it will not be directly exposed to liquid or to extreme temperatures. Please refer to Figure 1 or Figure 2 above
(depending on model being installed) for installation and operation.
2.2 Mounting
The compact node is designed to be mounted directly on a wall or other indoor surface. It should be placed so an operator
can view the status display for installation or troubleshooting. Attach the compact node to a wall board with the connectors
facing downward. Use appropriate mounting hardware (not included) for the surface you are mounting it on. The slots on the
compact node will accommodate screw type fasteners from sizes #8 to #12.
2.3 Grounding
The compact node should be grounded to electrical/utility ground using at least #10 solid ground wire. This will minimize the
risk of electrical shock and minimize the effect of noise on the coax cable inside the building. Follow all electrical codes and
standards that apply when installing this equipment.
2.4 Connecting COAX
Connect the building video coax wire to the output of the CATV compact node. For best results the building should use RG6
coax cable or better with as short of runs as possible. The compact node is designed to output 40dBmV of RF power (44
dBmV x2 on QFHPN-D44), and includes the ability to compensate for long distance coax runs if long runs cannot be avoided.
Be sure that all electrical couplers are of the 2-way type, or poor performance will result with cable modems and some set-top
boxes. When attaching the coax cable to the CATV compact node, use appropriate tools – do not over tighten or you may
damage the node. A loose or damaged coax connection may also result in poor signal stability as temperature changes over
time.
2.5 Connecting Optical Fibers
CAUTION: NEVER look into the ends of a fi ber optic cable that is connected to the network!!
Communications systems use lasers that emit invisible infrared light, which can do permanent
damage to your eyes.
Other general recommendations:
• Use only Single Mode Fiber (SMF) optic cable (9/125µM). Multi-Mode Fiber (MMF) is incompatible with the equipment
and will result in unacceptable performance and possible damage to the equipment.
• All  ber splices should be fusion-type splices. Avoid mechanical or compression type connections.
• Insure that you follow local practices when working with  ber optic cable as tight bends or excessive pulling on the
 ber jumpers may damage the cable.
• For optimum performance,  ber runs should be made directly from the transmitter to the receiver. Minimize the use
of adapters, patch panels and additional points of failure and signal loss.
• In order to ensure return loss is maximized, use only SC/APC connectors. Clean and inspect connectors and  ber
end-faces prior to installation, and every plug in/out cycle.
• Use only industry approved methods, materials, and solutions for cleaning.
• Do not turn on the transmitter alone or without a protector cover at the unit connector end, otherwise the laser can do
harm, especially to eyes. This is especially critical because the laser is invisible.
• Always turn off the laser prior to making connections to the transmitter. Failure to do so may cause irreparable
damage to the laser and transmitter.
AttachingtheberstotheCATVcompactnode:
• Before connecting the optical  ber to the CATV compact node, inspect and clean the optical connector before
connecting the optical network jumper.
• Insert the forward path  ber into the correct connector and con rm that the cable “snaps” into place.
• Clean and inspect the upstream return path connector on the compact node and connect the return path  ber jumper.
Con rm that the return path connector “snaps” into place (QFHPN-2W only).

HFC Enhance®– QFHPN High Power Optical Node with AGC – Installation & Operation Manual 3-1
CHAPTER 3: POWER UP AND TEST
POWER UP AND TEST
3. Power Up and Test
The compact node is now ready for power up.
3.1 Connect the Power Adapter
Insert the 5mm power plug from the power converter into the power port of the compact node and plug the adapter into the
120VAC wall outlet.
The compact node will conduct a self-test and the power LED will be ashing. As the test proceeds each of the mode LEDs
are lit in sequence. When the self test is complete, the output power LED is lit, and the display shows the current RF output
power level.
A green power LED indicates that the unit is operating correctly and the RF output is within acceptable limits. (See alarm
indicator section if the SYS/ALARM LED is not showing green).
Secure the low voltage cable from the compact node such that it does not become easily tangled or dislodged.
3.2 Verify Signal Levels
The compact node is equipped with a built in power meter for the RF output and the optical input/outputs. Use the arrow control
keys to select the values you want to view as follows:
3.2.1 Check RF Power Output Level
Use the arrow control buttons to select the RF LEV mode. (When the compact node completes its initial diagnostics, it will
automatically be selected). The display indicates the RF output power, measured in dBmV/Ch. Note that the attenuation
setting will directly affect the output power value for the compact node.
• Using an RF Signal Meter, conrm the RF downstream power level output. The output level should be approximately
+40dBmV per channel with an optical input of from -8 to +1dBmV.
◦The RF level can also be measured from the RF output test port. The level at the test port will be
approximately 20 dB below the actual RF output level.
3.2.2 Check Optical Power Receive and Optical Output Levels
Use the arrow control buttons to select the OP IN/OUT mode. Both the input and the output optical power levels can be viewed.
Enter the OP IN/OUT mode by pressing the down arrow and the display shows the optical input power from the network. The
value on the display is shown in dBm, and should be between -9 and +1. (The ideal setting is -3)
Pressing the down-arrow button again shows the upstream optical output power level being generated by the compact node,
also measured in dBm. This value should measure between 0 to +2.
• Using an Optical Power Meter, verify that the downstream (forward path) signal on the ber cable coming from the
head-end is between -9 and + 1 dBm.
• Using an Optical Power Meter, verify the upstream output of the compact node (return path) is between 0 and +2dBm
(QFHPN-2W only).
3.2.3 Check the Upstream RF Power Level (QFHPN-2W only)
The compact node has no direct measurement of the upstream RF power it is receiving. You will need to conrm the received
RF power from a cable modem at the head-end, or at the RF test port on the CATV compact node.
• Using an RF Signal Meter, verify the RF input to the compact node is between+23 dBmV and +35dBmV. The
measurement at RF upstream input test port will be 20 dB below the actual input level.

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CHAPTER 3: POWER UP AND TEST
3.3 Fine-tuning the Compact Node to the RF Network
In some cases, the output of the compact node may need to be adjusted. The compact node has built-in attenuation and
equalization features that allow you to optimize the system.
3.4 Changing the RF Attenuation
The attenuation feature allows you to reduce the RF output into the coax network in the case where overdriving is being
experienced. Attenuation can be applied in 1dB increments up to a maximum of 16db as follows:
1. Using the arrow button, select the “ATT” mode. The current attenuation setting will be displayed.
2. Press and hold the return button until the display starts to blink.
3. Use the arrow buttons to change the value shown on the blinking display to a desired value.
4. Click the return button to set the attenuation value into memory. The display stops blinking.
The RF output level has now been changed and set.
3.5 Changing the RF Equalization
The Equalization feature allows you to change the tilt on the RF output to compensate for the losses in the coax cable. High
frequency channels tend to be attenuated by the cable more than the low frequency channels. Changing the tilt attenuates the
lower channels but not the high channels to overcome the cable loss issues. The attenuation can be applied in 1dB increments
up to a maximum of 16 as follows:
1. Using the arrow button, select the “EQ” mode. The current tilt setting will be displayed.
2. Press and hold the return button until the display starts to blink.
3. Use the arrow buttons to change the value shown on the blinking display to a desired value.
4. Click the return button to set the equalization value into memory. The display stops blinking.
The RF tilt has now been changed and set.

HFC Enhance®– QFHPN High Power Optical Node with AGC – Installation & Operation Manual 4-1
CHAPTER 4: SPECIFICATIONS
SPECIFICATIONS
4. Specications
SPECIFICATIONS QFHPN
RECEIVER (Forward Path)
WAVELENGTH 1260-1620nm
OPTICAL INPUT POWER RANGE -9 to +1 dBm (8 dB optical AGC range)
FREQUENCY RANGE 54-1000 MHz
FREQUENCY RESPONSE ± 1.5 dB (54-1000 MHz)
RF OUTPUT POWER +40, +44 dBmV (at 0 dBm optical input,
+44 dBmV applies to dual RF output model only)
TILT 0-12 dB (54-550 MHz, 1 dB steps)
RF ATTENUATION 0-16 dB (1 dB steps)
CARRIER-TO-NOISE RATIO 51 dB (78 channel loading, 0 dBm input)
COMP. 2nd ORD. -60 dBc (78 channel loading, 0 dBm input)
COMP. TR. BT. -60 dBc (78 channel loading, 0 dBm input)
RF TEST POINT -20 dB (referenced to output)
TRANSMITTER (Optional Return Path)
WAVELENGTH 1310nm ± 20
OPTICAL OUTPUT POWER +1 dBm (± 1 dB)
RF FREQUENCY 5-42 MHz
RETURN PATH RF INPUT POWER +22 to +35 dBmV
FREQUENCY RESPONSE ± 0.75 dB (5-42 MHz)
RF TEST POINT -20 dB (referenced to input)
ELECTRICAL & ENVIRONMENTAL
DC POWER 5-8 VDC
TOTAL POWER CONSUMPTION < 6.5 watts
AC POWER ADAPTER AC Adapter, 120 VAC to 5 VDC
DC POWER INPUT RANGE 40-60 VDC
OPERATING TEMPERATURE -10⁰C to +55⁰C (+14⁰F to +131⁰F)
HUMIDITY 5-95% Non-condensing
DIMENSIONS 1.42”H x 6.43”W x 5.45”D (3.6H x 16.3W x 13.8D cm)
WEIGHT 1.1 lbs (0.5 kg)

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CHAPTER 4: SPECIFICATIONS
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HFC Enhance®– QFHPN High Power Optical Node with AGC – Installation & Operation Manual 5-1
CHAPTER 5: SERVICE & SUPPORT
SERVICE & SUPPORT
5. Service & Support
5.1 Contact ATX Networks
Please contact ATX Technical Support for assistance with any ATX products. Please contact ATX Customer Service to obtain
a valid RMA number for any ATX products that require service and are in or out-of-warranty before returning a failed module
to the factory.
RF Products
(MAXNET, SignalOn, HFC Enhance, PCI Filters, Q-Series, SCN, SMAC, FiberLinx)
TECHNICAL SUPPORT
Tel: [phone] – press *3 then press 2
Toll Free: [phone] – press *3 then press 2 (USA & Canada only)
Email: [email protected]
CUSTOMER SERVICE
ATX Networks
1-501 Clements Road West
Ajax, ON L1S 7H4 Canada
Tel: [phone] – press *1
Toll Free: [phone] – press *1 (USA & Canada only)
Fax: [phone]
Toll Free Fax: [phone] (USA & Canada only)
Email: [email protected]
Web: www.atxnetworks.com
5.2 Warranty Information
The ATX Networks QFHPN has a one year warranty and is subject to ATX Networks’ standard warrantee terms.
There are no user serviceable components inside the unit. The warranty is void if the unit is opened or is damaged due to
misuse.

ATX Networks
1-501 Clements Road West, Ajax, ON L1S 7H4 Canada
Tel: [phone] | Toll Free: 800.565.7488 | [email protected]
ISO
9001:15
REGISTERED
© 2018 ATX Networks
Information in this document is subject to change without notice.
www.atxnetworks.com
Rev. 08/18 (ANW1004)