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.

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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.

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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

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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

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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)

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3.4 Menu Operation
Prior to powering on the equipment: ensure that the laser switch key is on “OFF” position
before power on. Observe all laser and electrical safety precautions before powering up
the equipment. Power on the unit. On boot/power up the transmitter will do a self-test
and display the Z-Band Technologies, LLC. Part Number, including the power output, for
example: “Z-light 6TX”for a 1310nm Direct Modulated Optical Transmitter with a 6mW
output. After the unit passes self-test, rotate the key to the “ON” position which will then
be shown on the display.
The main menus are only accessible when the Laser On/Off Switch has been turned on.
Ensure that there are no open optical connections and observe all safety precautions then
turn on the laser. Press ENTER to see the Main Menu list. If the LCD display turns off
you may press the ESC button to turn it on again.
3.4.1 Main Menu
Displayed parameters
Comments
Display when Laser is Switched ON.
1. Disp Parameters
Menu one: Display parameters
2. Set Parameters
Menu two: Set parameters
3. Alarm Status
Menu three:Alarm status
In: 0.0 Out:10.3
dBuV dBm
Enter
r
1. Disp Parameters
2. Set Parameters
3. Alarm Status
ESC

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3.4.2 Display Parameters Menu
1.Disp Parameters
Enter
Laser Output: xx.x dBm
Laser Bias: xx.x mA
Laser Temp: xx.x ℃
Tec Cooling(Amp): -x.xx A
RF Chan NO: 10
ESC
IP Address: xxx.xxx.xxx.xxx
Subnet Mask: xxx.xxx.xxx.xxx
Net Gateway: xxx.xxx.xxx.xxx
Mac: XX-XX-XX-XX-XX-XX
Software Version: VX.X
RF Control Mode: AGC
AGC Ref: x dB
Laser RF: x dBuV
RF Ctrl Mode: MGC
MGC ATT: X dB
Wave Length: xxxx.x nm
+5V Read: x.xx V
BOX Temp: xx.x ℃
S/N: xxxx.xx.xx
-5V Read: -x.xx V
+24V Read: xx.xx V

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Displayed parameters
Comments
(No settings can be changed in this “View-Only”Menu)
Laser Output
Laser output optical power
Laser Bias
Laser bias current
Laser Temp
Internal Laser temperature
Tec Cooling
Thermoelectric Cooler current
RF Channel Number
Number of RF Channels being transmitted (setting this in the SET
PARAMETERS menu gives better accuracy in the RF signal
levels displayed).
Laser RF
Laser RF input signal level
RF Control Mode
RF control mode (either AGC or MGC)
MGC ATT
MGC attenuation (in MGC mode)
AGC Ref
AGC offset (in AGC mode)
+5V Read
+5V monitoring voltage
-5V Read
-5V monitoring voltage
+24V Read
+24V monitoring voltage
Wavelength
Laser wavelength –1310nm
S/N
Serial number
Box Temperature
Internal temperature of the transmitter box
IPAddress
Local IP Address
Subnet Mask
Subnet mask
Net Gateway
Gateway IPAddress
Mac
MAC address
Software Version
Software/Firmware Version number (v1.16.1411.1 or later)

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3.4.3 Set Parameters Menu
2. Set Parameters
Enter
Set Buzzer Alarm
Set RF Control Mode
Set MGC ATT
Set AGC Ref
Set IP Address
ESC
ON OFF
AGC MGC
0 dB
X dBm
Set SubNet Mask
Set GateWay
xxx.xxx.xxx.xxx
Restore Factory
Set Laser Output Unit
mW dbm
Set Channel Number
x
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
YES NO

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Displayed parameters
Comments
Remarks
Set Laser Output Unit
Set the unit of output optical
power
Either mW or dBm
Set Buzzer Alarm
Turn on/off alarm buzzer
Either ON or OFF
Set Channel Number
Set the number of RF channels
Default is set, Change to actual number
Set RF Control Mode
Set the RF control mode
Either AGC or MGC
Set MGC Att
Set the ATT in MGC mode
Attenuation: adjustable range 0~20dB
Set AGC Ref
Set the offset in AGC mode
Adjustable range ±5dB
Set Local IPAddress
Set the IP address
Set SubNet Mask
Set the subnet mask
Set GateWay
Set the gateway
Restore Factory
Restore factory settings
3.4.4 Alarm Status Menu
The displayed alarm content –ONLY
DISPLAYED IFAN ALARM CONDITION
EXISTS
Comment
RF Alarm
RF alarm
Laser Temp
Laser temperature alarm
Laser Bias
Laser bias current alarm
Laser Tec
Laser cooling current alarm
OutputAlarm
Output optical power alarm
+5VAlarm
+5V alarm
-5VAlarm
-5V alarm
+24VAlarm
+24V alarm

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4. Installing Z-Light 6TX/16TX/26TX Optical Transmitter
4.1 Receiving and Inspecting
As you unpack your unit, inspect the shipping container and equipment for damage. Save
the shipping material for future use. If the container or the equipment is damaged, notify
both the freight carrier and Z-Band Technologies, LLC.
4.1.1 Instruments and tools
1. An optical power meter;
2. A digital multimeter;
3. A standard optical fiber test jumper (SC/APC for standard SC/APC);
4. Fiberoptic cleaning cartridge kit
4.1.2 Precautions
Heed the following precautions (as well as those detailed earlier in this manual) when
working with the Z-Light 6TX/16TX/26TX.
Warning
Read the installation instructions before connecting the
system to the power source.
CAUTION: To protect yourself from potential injury and to protect
the equipment from further damage, do NOT power up and do
NOT perform any operational tests if the equipment appears to
be damaged.

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Warning
The AC Power Supply switches must be accessible at all
times, because they serve as the main disconnecting device.
IN THIS REDUNDANT POWERED SYSTEM BOTH AC
POWER SUPPLIES MUST BE OFF/DISCONNECTED TO
POWER DOWN THE UNIT.
4.2 Installation Steps Overview
1. Before installing the equipment, please read this manual carefully and install the
equipment according to the manual. Note: For damage caused by installation not
being completed according to the manual, Z-Band Technologies, LLC. cannot be
responsible and cannot supply free warranty service or free replacements.
2. Remove the device from the box; bolt it to the rack and ground reliably. (The grounding
resistance must be < 4Ω). See section 4.3 for details.
3. Use the digital multimeter to check the AC supply voltage, make sure the supply
voltage complies with the requirements and the power supply switches are in the “OFF”
position. Then connect the power supplies AC power cords.
4. Attach the coaxial cable and input the RF signal, turn the power supplies on and observe
the front panel LED status. After the LED working status indicator turns green, the
device is working normally. Turn ON the Laser Switch then press the ENTER button
on the front panel to check the operating parameters.
5. Power down the entire unit.
6. Connect the optical power meter to the optical signal output end by an optical fiber test
jumper. Power up the unit, turn on the laser, then measure the optical output power.
Confirm the measured optical output power and the displayed power are the same and
have reached the nominal value. (Confirm the optical power meter is on 1310nm
wavelength test position; the optical fiber test jumper is the correct connectorized one,
SC/APC, and the connector and jumper surface has no dirt, contamination, etc). Power
down the unit and then remove the optical fiber test jumper and optical power meter;
connect the device to the network (see section 4.3.3). The device has then completed
initial installation and debugging.

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4.3 Mounting Z-Light 6TX/16TX/26TX
4.3.1 Mounting the Z-Light 6TX/16TX/26TX in the Rack
Mounting the Z-Light 6TX/16TX/26TX in the standard 19 inch equipment rack:
1. Place the equipment in the rack.
2. Use four rack mounting screws through the front faceplate flange to mount the Z-Light
6TX/16TX/26TX to the rack.
3. Reliably ground the equipment. The ground terminal is on the rear panel.
4. Visually inspect each button on the front panel to ensure that it is not (accidentally
during installation) been pressed and pushed slightly sideways so that it is trapped under
the edge of its hole. If a button is trapped, tap the button to move it so that it is able to
move freely.
4.3.2 Connecting the RF Cables
Connect the RF input cable to the rear of the Transmitter. A -20dB RF test connector is
located on the front of the transmitter.
4.3.3 Connecting the Optical Fiber Cable
Z-Light 6TX/16TX/26TX has one optical connector.
DANGER:The fiber carries invisible
laser radiation. AVOID DIRECT
EXPOSURE TO LASER. Never
operate the unit with a broken fiber or
with a fiber connector disconnected.
1. Verify the matched Z-Light 6TX/16TX/26TX fiber cable connector type according to
the ordering information (default is SC/APC).
2. Verify that the fiber cable connector has been cleaned properly. If the fiber cable
connector needs to be cleaned, follow the cleaning procedure outlined in section 6.1
3. Verify that the Z-Light 6TX/16TX/26TX optical connector has not been exposed to any
contamination. Damage to the equipment due to connector contamination is NOT
covered by warranty.

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NOTE: Any contamination of optical connector
can significantly degrade optical link performance.
This degradation will most likely manifest itself as
poor signal-to-noise (SNR) performance.
4.3.4 Connecting the Ethernet Cable
You can connect the Z-Light 6TX/16TX/26TX to your TCP/IP LAN network in order to
monitor and control the transmitter remotely. After you complete the installation
procedures described in this chapter, you can use a network management system (NMS) to
monitor and control the Z-Light 6TX/16TX/26TX.
To connect the Z-Light 6TX/16TX/26TX, you must use a shielded and grounded Category
5 Ethernet cable.
To connect the Ethernet cable:
1. Connect an Ethernet cable to the transmitter’s RJ-45 Ethernet port. The Ethernet port is
on the rear panel of the transmitter.
2. Verify that the green Link LED is illuminated, indicating that there is a connection.
4.3.5 Connecting Power
The Z-Light 6TX/16TX/26TX is normally shipped from the factory as a 110/240VAC
redundant power model. After mounting the Z-Light 6TX/16TX/26TX in a rack, follow
the power connection procedure below for the model that you are installing.
It is equipped with two 110/240VAC switching power supplies that require input voltage
of 110～265VAC, at 50～60Hz single phase. The AC power plugs and switches are located
on the rear of the unit.
Follow all safety precautions detailed earlier in this manual. Prior to powering on the
equipment: ensure that the laser switch key is on “OFF” position before power on. After
the unit passes self-test, rotate the key to “ON” position according to the displayed message.
Turn on the power sources (for both power supplies). It takes about 60 seconds for all
systems to complete self-test and then to boot up into full operation.

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5. Communication Setup
5.1 RS232 Communication Interface Description
The transmitter uses a DB9 standard connector for the Console
connection/configuration, SNMP configuration, etc and the pin definitions are as follows:
1: No Connect
2: TX
3: RX
4: No Connect
5: GND
6: No Connect
7: No Connect
8: No Connect
9: No Connect
The serial communication uses the standard NRZ form, 1 start bit, 8 data bits, 1 stop
bit and the baud rate is 38400.
5.2 Setting up PuTTY for RS232 Communication to Transmitter
PuTTY is a terminal program used to connect to your transmitter using a serial port or a
USB to serial adapter which connects to the RS232 serial port on your transmitter. If you
have not set up PuTTY on your Windows computer system, complete the following steps:
Download the FREE version of PuTTY at http://www.putty.org/ and install it. Start the
PuTTY program: