Z-Band Z-Light 6TX User manual

www.z-band.com All Rights Reserved © 2018 Z-Band Technologies, LLC. Phone: [phone]
FAX: [phone]
Z-Light 6TX / 16TX / 26TX
Intelligent Direct Modulated
Optical Transmitter Operating Manual
Z-Band Technologies
848-B N. Hanover St., Carlisle, PA 17013
866.902.2606
www.z-band.com
October 2018 (Version 2k)
This manual is intended solely for use by purchasers of Z-Band Technologies, LLC. transmitters and their
qualified service technicians. This document is the property of Z-Band Technologies, LLC. and
incorporates proprietary subject material and information. The use of all design, manufacture, reproduction,
and all other rights regarding these contents in whole or part without Z-Band Technologies, LLC. written
consent is expressly prohibited. Z-Light® and the Z-Band logo are registered trademarks of Z-Band
Technologies, LLC.

Z-Light 6TX/16TX/26TX Intelligent Direct Modulated Optical Transmitter
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SAFETY CONSIDERATIONS
Dangerous voltages are present within the equipment. These voltages
may not be insulated and may be of sufficient strength to cause serious
bodily injury if touched. DO NOT OPEN THIS EQUIPMENT.
IN THIS REDUNDANT POWERED SYSTEM BOTH AC
POWER SUPPLIES MUST BE TURNED OFF/DISCONNECTED TO POWER
DOWN THE UNIT.
Only qualified service personnel are to install or service the equipment. The performance and
reliability of the equipment can be adversely and permanently affected by incorrect installation or
servicing and the safety of the equipment operator can be compromised. Problems caused by
unqualified installation/service personnel are NOT COVERED BY WARRANTY.
WARNING: To reduce the risk of fire or electrical shock or bodily harm, do not expose this
equipment to rain or moisture and DO NOT OPEN THIS EQUIPMENT.
Optical Output Safety: 1310nm and 1550nm
Optical Transmitter units may emit harmful
invisible laser radiation. These products may emit
harmful laser radiation if powered on and the
optical path is exposed or the case is opened.
DANGER: DO NOT WORK ON THE OPTICAL
PATH, CONNECTIONS, ETC WHEN TRANSMITTER POWER IS ON.
IMPORTANT SAFEGUARDS
Z-Band Technologies, LLC. 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
thoroughly and understood completely before installing or operating this equipment. All
safety and operating instructions should be retained for future reference.
Heed All Warnings: All warnings on the equipment and in this Operating Manual
should be adhered to.
Provide Adequate 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.

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Provide the Required 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 fuses (if necessary) with only one of the same type and rating.
Adequate Grounding and Power Polarization: This equipment is equipped with
polarized AC line plugs (a plug having one blade wider than the other). This plug will fit
into the power outlet only one way as a safety feature. Do not defeat the safety purpose
of the polarized plug.
INSTALLER NOTE: This reminder is provided to call your attention to guidelines for
proper grounding. Specifically the cable ground shall be connected to the building
grounding system, as close to the point of cable entry as practical. The equipment
enclosure ground must also be attached and a ground screw connection is provided on
the rear of the equipment enclosure for this purpose.
Servicing: Refer all servicing to qualified personnel. Opening or removing covers may
expose dangerous voltages. THESE TRANSMITTERS DO NOT HAVE USER
SERVICABLE INTERNAL PARTS –DO NOT OPEN THE TRANSMITTER CABINET.
When replacement parts are required (the replaceable power supplies), make sure the
service technician uses only replacement parts provided by Z-Band Technologies, LLC.
(available from Z-Band Technologies-Authorized Distributors) and to SERVICE ONLY
WHEN POWER HAS BEEN DISCONNECTED. Unauthorized substitutions may result in
fire, electric shock, or improper operation of the unit and void all warranties.
Optical Output Safety: 1310nm and 1550nm 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 optical path is exposed. DANGER: DO
NOT WORK ON THE OPTICAL PATH,
CONNECTIONS, ETC WHEN
TRANSMITTER POWER IS ON.
Laser Safety Information:
Viewing the laser output with (or even without instruments) may pose an eye hazard.
Laser power could be accessible if optical connector is open or fiber is broken.
CAUTION: Lasers may be on whenever the transmitter is powered.
CAUTION: Use of controls, adjustments, and procedures other than those
specified herein may result in hazardous laser radiation exposure.
DANGER: 1310nm and 1550nm Optical Transmitter units may emit harmful
invisible laser radiation. These products may emit harmful laser radiation if
powered on and the optical path is exposed or the case is opened. DANGER: DO

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NOT WORK ON THE OPTICAL PATH, CONNECTIONS, ETC WHEN TRANSMITTER
POWER IS ON.
Table of Contents
Table of Contents............................................................................................................................... - 3 -
Safety Reminder................................................................................................................................. - 4 -
1. Overview........................................................................................................................................ - 4 -
1.1 About This Manual............................................................................................................... - 4 -
1.2 Product Description.............................................................................................................. - 5 -
1.3 Important Product Details and Applications ........................................................................ - 6 -
2. Technical Parameters ..................................................................................................................... - 6 -
3. Panel Interface and Menu System Description.............................................................................. - 8 -
3.1 Front Panel........................................................................................................................... - 8 -
3.1.1 Indicator Description................................................................................................. - 8 -
3.2 Rear Panel............................................................................................................................ - 9 -
3.3 Power Module...................................................................................................................... - 9 -
3.3.1 110-240VAC Power Module..................................................................................... - 9 -
3.4 Menu Operation ................................................................................................................. - 10 -
3.4.1 Main Menu.............................................................................................................. - 10 -
.......................................................................................................................................... - 10 -
3.4.2 Display Parameters Menu ........................................................................................- 11 -
3.4.3 Set Parameters Menu............................................................................................... - 13 -
3.4.4Alarm Status Menu.................................................................................................. - 14 -
4. Installing Z-Light 6TX/16TX/26TX Optical Transmitter............................................................ - 15 -
4.1 Receiving and Inspecting................................................................................................... - 15 -
4.1.1 Instruments and tools ...................................................................................................... - 15 -
4.1.2 Precautions...................................................................................................................... - 15 -
4.2 Installation Steps Overview ............................................................................................... - 16 -
4.3 Mounting Z-Light 6TX/16TX/26TX ................................................................................. - 17 -
4.3.1 Mounting the Z-Light 6TX/16TX/26TX in the Rack ............................................. - 17 -
4.3.2 Connecting the RF Cables....................................................................................... - 17 -
4.3.3 Connecting the Optical Fiber Cable........................................................................ - 17 -
4.3.4 Connecting the Ethernet Cable................................................................................ - 18 -
4.3.5 Connecting Power................................................................................................... - 18 -
5. Communication Setup.................................................................................................................. - 19 -
5.1 RS232 Communication Interface Description ................................................................... - 19 -
5.2 Setting up PuTTY for RS232 Communication to Transmitter........................................... - 19 -

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5.4 Remote Monitoring: SNMP............................................................................................... - 24 -
5.5 WEB Network Management.............................................................................................. - 25 -
6. Maintenance and Troubleshooting............................................................................................... - 27 -
6.1 Cleaning Fiber Optic Connectors....................................................................................... - 27 -
6.1.1 Cleaning Patch Cord or Pigtail Fiber Optical Connectors....................................... - 28 -
6.2 Troubleshooting ................................................................................................................. - 29 -
6.3 After-Sales Service............................................................................................................. - 31 -
6.4 Disclaimer.......................................................................................................................... - 31 -
Safety Reminder
DANGER: The transmitter emits invisible laser radiation.
AVOID DIRECT EXPOSURE TO LASER. Never operate the unit with
a broken fiber or with a fiber connector open or disconnected. Never work
on the optical connections with the equipment power attached. This
unit has redundant power –BOTH supplies must be powered down.
1. Overview
1.1 About This Manual
This instruction manual is a complete guide to install and operate the (1RU) Z-Light
6TX/16TX/26TX optical transmitter. Please read the entire manual and understand

Z-Light 6TX/16TX/26TX Intelligent Direct Modulated Optical Transmitter
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the safety precautions before beginning installation.
This manual is applicable to the Z-Light 6TX/16TX/26TX optical transmitter.
• Chapter 1 gives general information about the Z-Light 6TX/16TX/26TX optical
transmitter.
• Chapter 2 describes the complete technical specifications of Z-Light 6TX/16TX/26TX.
• Chapter 3 describes the front/rear panel interfaces and menu system.
• Chapter 4 tells you how to install the Z-Light 6TX/16TX/26TX optical transmitter.
• Chapter 5 tells you the communication settings of the Z-Light 6TX/16TX/26TX.
• Chapter 6 describes maintenance and what to do in the event of problems.
1.2 Product Description
The Z-Light 6TX/16TX/26TX intelligent directly modulated optical transmitter is
mainly used in 1310nm optical fiber transmission systems. It uses advanced intelligent
electronic predistortion compensation technology.
The Z-Light 6TX/16TX/26TX intelligent directly modulated optical transmitter is one
of the most important components used to build a CATV-HFC network. It is mainly used
to transmit analog video, digital television signal, telephone voice signal and data (or
compressed data) signal providing a high quality low cost transmitter solution for CATV.
Z-Light 6TX/16TX/26TX: 1310nm directly modulated optical transmitter, uses a DFB
laser, the optical output power is from +6 to +15dBm.

Z-Light 6TX/16TX/26TX Intelligent Direct Modulated Optical Transmitter
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Block Diagram
Z-Light 6TX/16TX/26TX directly modulated optical transmitter block diagram
1.3 Important Product Details and Applications
Supports 1.2 GHz and DOCSIS 3.1
USA technology high quality EMCORE ORTEL DFB Laser
Dual redundant, hot swappable power supply modules (48VDC optional)
Use in 1310nm Optical fiber transmission systems
Building CATV HFC networks
2. Technical Parameters
Item
Unit
Technical parameters
Optical output power
mW
6, 12, 22 mW Options
Optical wavelength
nm
1310±20
Laser type
USA technology, high quality EMCORE ORTEL DFB laser
Optical modulation
mode
Direct optical intensity modulation
Optical connector
type
SC/APC
Frequency range
MHz
47-870/1003/1218 (depending on selected channel load)
RF input level
dBµV
75-85 dBµV (+12 to +28dBmV)
Flatness in band
dB
±0.75

Z-Light 6TX/16TX/26TX Intelligent Direct Modulated Optical Transmitter
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RF input impedance
Ω
75
Input return loss
dB
≥ 50
C/CSO
dB
≥ 62
C/CTB
dB
≥ 67
C/N
dB
≥ 52
AGC control range
dB
±5
MGC control range
dB
0-15
Power supply voltage
V
AC 110V-250V（50/60Hz）（hot swappable redundant-power）
Consumption
W
15
Operating
temperature
°C
0 –+45 (+32 –+113°F)
Storage temperature
°C
-20 –+65 (-4 –+150°F)
Relative humidity
%
Max 95% no condensation
Dimension
mm
483（W）×380（D）×44（H）(19in W x 15in D x 1.75in H)
Optical link carrier to noise ratio degradation table
Optical
power
Optical link loss (dB)
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
4mW
53.8
52.8
51.8
51
50.1
49.2
48.2
6mW
53.0
52.0
51.0
50.1
49.1
48.1
8mW
52.8
51.9
51.0
50.1
49.2
48.2
10mW
52.9
51.9
51.0
50.1
49.1
48.2
12mW
52.7
51.8
50.8
49.9
49.0
48.0
14mW
52.4
51.5
50.5
49.5
48.6
47.8
16mW
52.0
51.0
50.1
49.1
48.1
18mW
52.5
51.6
50.6
49.7
48.7
47.9
20mW
51.9
51.0
50.0
49.0
48.0
22mW
52.2
51.4
50.4
49.4
48.6
47.8
24mW
51.5
50.3
49.2
48.5
47.7
26mW
51.5
50.2
49.2
48.5
47.6
28mW
51.6
50.4
49.3
48.6
47.8
31mW
51.3
50.4
49.3
48.5

Z-Light 6TX/16TX/26TX Intelligent Direct Modulated Optical Transmitter
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3. Panel Interface and Menu System Description
3.1 Front Panel
1 2 3 4 7
5 6 8 9 10 11
3.1.1 Indicator Description
Power Indicator (POWER)
Power on
LED Green
Status Indicator (RUN)
Running normally
LED Flashing Green
Laser Status Indicator
(ON/OFF)
Laser OFF
LED Flashing Red
Laser ON
LED Green
RF Input Indicator (RF)
No input or exceeds the normal range
LED Flashing Red
Normal
LED Green
1
Power Indicator
2
Status (Run Indication)
3
Laser Status Indicator
4
RF Input Indicator
5
LCD Display
6
ESC/Cancel/Back/Exit
button
7
UP button
8
DOWN button
9
Enter/Select button
10
Laser On/Off Keyswitch
11
RF input test port (-20dB
compared to rear RF
input ports)

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3.2 Rear Panel
1 2 3 4 5 6 7 8 9 10 11
3.3 Power Module
3.3.1 110-240VAC Power Module
1
Mounting screws
2
110/240VAC power cord
input
3
Fuse
4
Power switch
No.
Name
Remark
1
Fan
Cooling air exhaust. Do not obstruct.
2, 3
RF/”Data” Input
RF and “Data” Input ports are both interchangeable as RF inputs
4, 5
RF/”Data” Test
RF input Test ports (-20dB compared to RF/”Data” input ports)
11
Ground Screw
Used for connecting the transmitter to building ground
6
Optical Signal
Output
CAUTION - LASER: This is the optical signal output port (standard
connector is SC/APC). TURN OFF LASER OR REMOVEALL
AC POWER BEFOREACCESSING OR CONNECTING TO
THIS PORT.
7
RS232 interface
Console: used for configuring the network management parameters.
8
LAN interface
Corresponds to IEEE802.3 10Base-T, used for network management.
9, 10
Switching Power
Module
Hot pluggable, redundant 110-240VAC (50/60Hz)