Mehta xxE-1550 series User manual

The User Manual
1550nm CATV ERBIUM-DOPED FIBER
AMPLIFIER
Our module light pumped laser and Erbium-Doped Fiber is used by the original
binding compontfrom USA.
We have reliable optical light power output stabilizing circuit and laser
electrical refrigerator temperature to control the circuit, guaranteed the complete
machine optimum performance and the laser long life steady work..
The microprocessor software have laser condition monitor, digital display fault
warning, network management and various function. Once the laser’s operational
parameter deviate software establishes permission scope, it will close laser’s power
automatically. The red light coruscate, prompt alarm and digitizing tablet will point
out fault cause.
The microprocessor software provide RS-232 and 485 interface used for network
management and remote monitoring.
We adopt 1RU 19” standard engine frame efficient switch power, 85~254V utility
power.
This manual applies to the **E-1550 series 1550nm bait doped fiber amplifier; focuseson the
performance of the product features, installation and commissioning, technical parameter and
common troubleshooting and other related content. In order to make sure that the device is
installed and security runs smoothly, please user in the installation and commissioning of this

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device, be sure to read this manual carefully and strictly in accordance with the manual steps to
install debugging, so as not to cause unnecessary damage to equipment, operations or causing
accidental injury; ifyou have any questions, please contact our company.
Special hints
Bait doped fiber amplifiers is a high-end professional equipment and its operation of the
installation must be performed by professionals, and read this manual carefully before
operating, in order to avoid damage to equipment due to misunderstood operation, or
causing accidental injuries to operators.
When working in optical fiber amplifier, located at the rear panel of the optical signal
output adapter will have invisible laser beam shooting out the optical signal output port
should be avoided on the human body, outlet should not look directly at the light with the
naked eye, so as not to cause permanent harm to the human body, the human eye!!!
Equipment in power before, should first confirm that the earth terminal of the Cabinet and
the power outlet is reliable earthing (grounding resistance should be 4 ω), in order to avoid
static damage to the laser device and prevent the Cabinet charged that cause harm to the
human body.
To ensure device can long-term stability of work, in voltage does not stability or voltage
waveform poor of area, recommendations user for device configuration dedicated of
exchange regulator power, has conditions of user more can configuration does not
continuous regulator power (UPS) system; in environment temperature changes too large
or room environment poor (device of ideal work environment temperature for 25 ℃) of
area, recommendations user for device configuration dedicated of air conditioning system,
to improved device of work environment.
I. Product overview
Is mainly used in **E-1550-series 1550nm optical fiber amplifier 1550 important optical
relay transmission in optical fiber communication system equipment, mainly for image signal,
digital TV signal, telephone voice signals and data (or compressed data) ultra long haul
transmission of signals. The product selection of imported high-performance baits fiber, the
international famous brand low-noise pump laser, and built-in sound embedded automatic
monitoring and control system, ensure the machine excellent performance indicators.
II.Performance characteristics
Selection of international famous brand of low-noise pump laser, low distortion, wide band,
high output light power

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Adopts imported high-performance baits fiber, high energy conversion efficiency.
Power and pumped lasers of all kinds of work status, ensuring a stable optical output power,
and effectively extend the working life of the pump laser.
Front panel in-line blue screen 160*32 dot-matrix LCD display, displaying precisely the status
of equipment parameters.
19 "rack 1U high standard, equipped in conformity with standard Ethernet interfaces
IEEE802.310Base-T and RS-232 interfaces, can facilitate the realization of network monitor.
Full support for《GB/T 20030-2005 management system of HFC network equipment
specifications》
III. Schematic diagram of
IV. Technical parameters
4.1 link test conditions
Special Note: equipment technical parameters given in this manual is a reference to GY/T
184-2002 the Jeep analog fiber amplifier test methods under the technical requirements and
methods of measurement, measured and, under the following test conditions.
Test conditions: and standard fibre and standard light receiver composition test chain road, and
in provides of chain road loss conditions Xia, in 550MHZ frequency range within configuration 59
a PAL-D simulation TV channel signal, in 550MHZ-862MHZ frequency range within transfer digital
modulation signal, digital modulation signal of level (8MHZ bandwidth within) than simulation
signal of carrier level low 10Db, light receiver entered power for -1dBm Shi, measurement carrier
combination three order poor took than (C/CTB), and Carrier combo the second beat of the
street (C/CSO) and carrier to noise ratio (C/N).
4.2 technical data sheet
Project Unit Technical parameters Notes
Bandwidth Nm 1535-1565
Input power range dBm -3-+10
Recommended input
optical power 0-+5dBm
Output optical power dBm 13-24
Output power stability dBm ±0.5

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Noise figure
dB ≦5.0
Input optical power
0dBm
Reflection
loss
Input
terminal
dB ≧45
Output
terminal
dB ≧45
Pump leak
power
Input
terminal
dBm ≦-30
Output
terminal
dBm ≦-30
Carrier to noise ratio (C/N) dB ≥52
Carrier combined
third-order beat（C/CTB）
dB ≥63
Carrier combo erjiecha
(C/CSO)
dB ≥63
Optical connector type FC/APC or SC/APC
Power supply voltage V AC160V-250V(50Hz)orDC-48V
Operating temperature
range
℃-5 - +55
Maximum operating
relative humidity
% Max 95% no condensation
Storage temperature
range
℃-30 - +70
Maximum storage relative
humidity
% Max 95% no condensation
Overall dimensions mm
483 (w) x340 (d) x44 (h)
Ⅴ.External functional description
5.1 front panel description

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1) power indicator: when the lamp is lit when the internal switching power supply.
2) input optical power led: input optical power greater than -10dBm the lamp is lit.
3) pump working status indicator: when the light is solid red light says pump not working, inside
the machine parameters are normal; when the red light flashes, the machine is faulty, related
reason for the failure to see the alarm on the display menu menu item; when the light is green
light solid pump work properly.
4) output optical power led: output optical power is greater than the +10dBm of the light
5) 160x32 dot-matrix LCD display: use to display all parameters of the machine
6) display settings menu to exit or cancel key.
7) displays the Setup menu up or incremental key
8) determines the display settings menu key
9) pumped laser switch-key: used to control the working state pump lasers. "ON" pump laser
opening, "OFF" indicates that the pump laser off. Equipment in power before key in "OFF"
position, after device self test passed, according to display a prompt, key twist and turn to the
"ON" position.
5.2 rear panel description
1) optical signal input: common interface type specifications are both FC/APC and SC/APC.
2) optical signal output port: this interface is a device of optical signal output port, interface types
FC/APC and SC/APC two of the common specifications. After the equipment normal work, this
port is not visible laser beam shot, avoid the ports aligned with the body or to the naked eye, so
as to avoid accidental injury.
3) RS232 interface: used to configure this computer for the network management parameters.
4) LAN interface: IEEE802.3 compliant 10Base-T interface, network management for native
5) power input.
6) rack Earth Stud: for devices connected to the grounding wire.
5.3 display parameter description
1) power on if the lock is turned off is displayed:
Logo and model of the machine
2) unlock the display power-on delay at this time:
**** Technology
**E-1550-XX
Lock is OFF
**** Technology
**E-1550-XX
Lock is ON…
3Sec

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Delay countdown
3) after entering the system displays:
Current input optical power and output optical power
4) if anze ENT button to enter the menu index
Press up and down arrow keys to highlight bar will move up and down, respectively: 1. display
native parameters menu, 2. setting can be set to native menu 3. alarms menu
5) show the parameters of submenu
Press the ENT key enters the menu
Displays the contents of the The significance of
Current input optical power
Before the light output of optical
power
X-pump bias current
X internal pump temperature
X-th-
pumping thermoelectric gas
work within current
Current +5V for voltage
Current -5V supply voltage
Native serial number
1. Disp parameters
2. ser parameters
3. Alarm status
1.Disp parameters
2.ser parameters
3.Alarm status
Nput power: 0.00 mvv
Output power 0Mw
Pump1 Bias: 225mA
Iput power: 0.00 mvv
Output power 0Mw
Pump1 Bias: 225mA
Pump1 Bias: 222MA
Pump1 Temp: 24.94℃
Pump1 Cooling: 0.14A
Pump3 Temp: 24.94℃
Pump3 Cooling: 0.27A
+5v Read: 4.78V
Pump3 Cooling: 0.27A
+5v Read: 4.78V
-5v Read: 4.88V
+5v Read: 4.78V
-5v Read: 4.87V
S/N: 061103123
Output Power: 0Mw
Pump1 Bias: 225MA
Pump1 Temp: 24.94℃
Output Power: 0Mw
Pump1 Bias: 225MA
Pump1 Temp: 24.94℃

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The current temperature inside the
machine
The IP address of the machine
Native to the mask
Native gateway
The MAC address of the machine
Version number of the software
system inside the machine
6）set menu
Press the ENT key enters the menu
Display content The significance of
Toggles the display of optical
power units
To open or close the buzzer alarm
Set the input optical power alarm
lower bound
Set the input optical power alarm
limit
Set the output optical power alarm
lower bound
+5v Read: 4.78V
S/N:
Box Temperature: 25.25℃
S/N: 061103123
Box Temperature: 25.25℃
IPAddres: 192.168.0.97
Box Temperature: 25.25℃
PAddres: 192.168.0.97
SubnetMask: 255.255.255.0
IPAddres: 192.168.0.97
SubnetMask: 255.255.255.0
Net Gateway: 192.168.01
SubnetMask: 255.255.255.0
Net Gateway: 192.168.01
Mac: 00-80-95-34-35-55
Net Gateway: 192.168.01
Mac: 00-80-95-34-35-55
Software Version: 2.00
1. Disp parameters
2. set parameters
3.
Alarm Status
Set Optic power Unit
Set Buzzer Alarm
Set Input OPTPOWER Low Alarm
Set Optic power Unit
Set Buzzer Alarm
Set Input OPTPOWER Low Alarm
Set Optic power Unit
Set Buzzer Alarm
Set Input OPTPOWER Low Alarm
Set Optic power Unit
Set Buzzer Alarm
Set Input OPTPOWER Low Alarm
Set Buzzer Alarm
Set Input OPTPOWER Low Alarm
Set Input OPTPOWER HigSet Optic power Unit
Set Input OPTPOWER Low Alarm
Set Input OPTPOWER High Alarm
Set out OPTPOWER Low Alarm

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Sets the output light power of
alarm limit
Set the pump temperature alarm
lower bound
Set the pump temperature alarm
limit
Set +5V power supply voltage
alarm lower bound
Setting alarm ceiling +5V power
supply voltage
Set -5V power supply voltage
alarm lower bound
Setting alarm ceiling -5V power
supply voltage
Set Fan on/off Temp
Set Optical OutPut ATT
Set the IP address of the machine
Set up this computer's subnet
mask
Set Input OPTPOWER High Alarm
Set out OPTPOWER Low Alarm
Set out OPTPOWER High Alarm
Set out OPTPOWER Low Alarm
Set out OPTPOWER High Alarm
Set Pump Temp Low Alarm
Set out OPTPOWER High Alarm
Set Pump Temp Low Alarm
Set Pump Temp High Alarm
Set Pump Temp Low Alarm
Set Pump Temp High Alarm
Set +5V Low Alarm
Set Pump Temp High Alarm
Set +5V Low Alarm
Set +5V High Alarm
Set Pump Temp High Alarm
Set +5V High Alarm
Set +5V Low Alarm
Set +5V Low Alarm
Set +5V High Alarm
Set -5V Low Alarm
Set +5V High Alarm
Set -5V Low Alarm
Set -5V High Alarm
Set -5V Low Alarm
Set -5V High Alarm
Set Fan Control
Set -5V Low Alarm
Set Fan Control
Set Out Put ATT
Set Fan Control
Set Out Put ATT
Set Local IP Address
Set Out Put ATT
Set Local IP Address
Set Subnet Mask
Set Local Ip Address
Set Subnet Mask
Set Gate wary

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To set up this computer gateway
Restore factory default settings for
the parameters
7）alarm menu
Press the ENT key enters the menu
Network management description
6.1 interface description
1) RS232 communication interface
Native RS232 communication interface standard DB9 female ends as connectors, feet are defined
as follows:
1：No Connect 2:TX 3:RX 4: No Connect 5:CND
6: No Connect 7: No Connect 8: No Connect 9: No Connect
Native serial communication standard does not return to zero (NRZ) format, 1 start bit, 8 data bits,
1 stop bit, baud rate of 38,400.
2) LAN communication interfaces
LAN communication using standard RJ45 connectors, feet are defined as follows
LAN
1：TX+ 2：TX-3:RX+ 4: No Connect 5: No Connect
6:RX-7: No Connect 8: No Connect
6.2 The management and application of network interface
一、 The transportation feature of category II：
1Data communication of category II transponder telemetry depends on IP
network，it is widely used in LAN, MAN, INTNET，support WLAN、VPN and
route。
Set Local Ip Address
Set Subnet Mask
Set Gate wary
Set Subnet Mask
Set Gate wary
Restore Factory Config
1.Disp parameters
2.set parameters
3.Alarm Status

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2Category II transponder telemetry will be needed set the only IP, mask and GW by
manual when operating, we do not suggest adopting DHCP
二、 Calibrate：
Debugging should be done in the equipment scence.
1Conditions for debugging：
1.1 Optical equipment and transponder telemetry are powered.
1.2 Fluently IP network for category II transponder telemetry.
1.3 IP resources for category II transponder telemetry have been divided and
set up completely.
2The tools and files for calibrate：
Notebook PC, administrator software（stand-alone version), IP Detect,
records for operating and calibrate.
3Calibrate：
3.1 Set up PC IP same with transponder telemetry. The IP for transponder
telemetry is 192.168.0.122, the PC can be set 192.168.0.2.
3.2 Take off the internet cable of transponder telemetry,connect PC and
transponder telemetry with own internet cable, for the internet cable, we
can use straight line or cross line. Note: For special PC, it can be only
use cross line.
4Fault judgment:
Phenomenon Reasons
Parameters error
1、Data wire can't be connected
2、Fault for transponder telemetry
Transponder telemetry OFF-LINE
1、Fault for IP network
2、Fault for IP, mask and GW.
3、transponder telemetry crashed
4、ARP cache is not cleaned out completely.
Transponder telemetry can not be searched IP
Detect
The IP of PC and transponder telemetry are not in the
same net work section.

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Transponder telemetry I P
can not be revised
by IpDetect
The IP of PC and transponder telemetry are not in the
same net work section or the mask error
Working parameters can not be foundby
adopting generally administrator
Group（read）、 Group（write）PUBLIC Uppercase
and lowercase inconsistency
VII. Installation and commissioning
7.1 opening checks
1. the equipment in front of the out of the box make sure packaging intact; if outsourcing with
damaged or water marks, please contact your local dealer or the carrier immediately.
2. check upon opening the box the packing-slip if requested in accordance with an inventory of
equipment and accessories inside the box, if you have any questions please contact your local
dealer or call the company.
3. upon opening the box and if you think the device is damaged, do not power on, in order to
avoid serious damage to the equipment or cause accidental injury to the operator and
immediately contact your local dealer or call the company.
7.2 instrument and tool
1. optical power in mind one
2. digital multimeter;
3. standard fibre test jumper one (FC/APC or SC/APC);
4. ethanol and a number of medical absorbent cotton;
7.3 installation steps
1. before you begin installing the device, please be sure to read the user manual carefully, and
according to procedures set forth in the user manual for installation and commissioning. Note:
because no can be carried out in accordance with the user manual of practice for installation and
commissioning of equipment as a result of man-made damage and all other consequences, our
company will not be responsible for any liability or no free warranty.
2. remove the device from its packaging, rack mounted, and reliable grounding device (grounding
resistance should be 4 ω).
3. use a digital multimeter to check supply voltage, make sure the voltage is to meet the
requirements, and the keys to confirm that the switch is in the "OFF" position, you can power
cycle connected devices.
4. under display message, the access light signals, and then rotate the key to switch to "ON"
position, observe the status of the front panel led, after the PUMP working condition, such as the
light turns green, device access to normal working condition. At this point you can press the
menu button on the front panel to view the operating parameters of the equipment.
5. test jumper with standard fibre optical signal optical power meter connected to the device's
output, the output optical power measuring device, confirming its output optical power and the
front panel display the same value, and the nominal value has been reached. (When measuring
optical power, optical power meter should be recognized under the 1550nm wavelength
measurement document, confirm that the fiber optic test jumpers to match standard test
jumper, Union joint surface and pollution-free. ) Removal of standard fibre optic test jumpers
and optical power meter, devices connected to the network. At this point, the device has
finished installation and commissioning.

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VIII. after-sales service
1. I promise: products are free warranty for 13 months (to paste the factory serial number on
the side of the device is identified by the factory starting time of day), and lifelong
maintenance. Due to user misuse or irresistible natural factors caused by equipment failure,
we will only be responsible for the maintenance, material costs and charge the appropriate
fee.
2. If the device fails, you should immediately contact your local dealer, or call our customer
service center.
3. Fault device requires action by professional technicians on-site, so as to avoid equipment
damage.
4. Special Note: for devices that was to open the maintenance by the user, our company will
not be free warranty, only to the warranty and reasonable maintenance costs and material
costs will be charged.
Cleaning and maintenance method for fiber optic connector
And a lot of times, we will drop light power outlet misjudgments for optical equipment failure,
the actual fiber optic connector may be caused by dust or dirt, pollution, just proper cleaning and
maintenance of fiber optic connector, you can troubleshoot. Below introduce operation method
of cleaning and maintenance of fiber optic connector.
1. power off the device, carefully unscrew the fibre on activities from the adapter connector
2. with texture good lens tissue or carefully with a degreasing alcohol cotton light connector
cleaning; such as degreasing alcohol cotton cleaning, cleaning is complete, also 1-2 minutes,
let dry alcohol flavor of the active connector surface
3. cleaning out fiber optic connection socket, access optical power meter, measuring output
optical power, to confirm that the fiber optic connector has been cleaned.
4. clean the fiber optic connector back to the adapter, should pay attention to appropriate, in
order to avoid too much force lets the adapter internal ceramic pipe rupture.
5. fiber optic connector after cleaning, the output light power is not normal, you should
remove the adapter, unscrew another connector to clean it inside the machine; such as
cleaning after the optical power remains low, at which point adapter might be contaminated,
cleaning with the adapter. (Note: use caution when you remove the adapter operation in
order to avoid damages fibers inside the machine. ）
6. dedicated compressed air available for adapter cleaning or degreasing cleaning alcohol
cotton section. With compressed air cleaning, compressed air nozzles of gas tank at the
adapter of ceramic pipes, ceramic tubes blowing compressed air into clean; with fat alcohol
cotton cleaning, carefully into the alcohol cotton ceramic pipe cleaning. Attention alcohol
cotton into the direction of articles should always be consistent, otherwise may not be able
to reach the ideal cleaning effect.
Pay special attention to
A. in the cleaning operation of fiber optic connector should be avoided with optical connection
diagram on the human body or human eyes, so as to avoid causing wing damage on the
human body or human eyes permanently burn!!!
B. installing fiber optic connector, force should be appropriate, failure to do so may cause the
adapter in the ceramic fragments. Ceramic Tubes once the fragmentation, the output light
power will drop significantly, turning it slightly and fiber-optic connector, the output light

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power will be significantly changed.
C. any operation on the fiber, without turning on the pump laser, or high power output causes
the output fibre connector is burned out, thus giving rise to the output power is reduced.
Such as equipment changes lead to a section in this manual do not match, are subject to change without
notice.