DKT Comega OFA-CCS series User manual

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OFA-CCS/CCD Series
1U/2U-Shelf Network Managed Optical Amplifier
User’s Manual
June 2014
.

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Network Managed OpticalAmplifier User’s Manual Rev 1.3
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Contents
1INTRODUCTION................................................................................ 5
1.1 About this Manual..................................................................................................................5
1.2 General Descriptions ..............................................................................................................5
1.3 Mechanical Dimensions and Operational Conditions .........................................................5
1.4 Precautions for Installation and Warnings...........................................................................5
1.5 Grounding Considerations.....................................................................................................6
1.6 Laser Safety.............................................................................................................................6
2PREPARATION................................................................................... 7
2.1 Summary .................................................................................................................................7
2.2 Check the Contents.................................................................................................................7
2.3 How to Connect the Power Supply........................................................................................7
2.4 How to connect the optical cable ...........................................................................................8
3DESCRIPTION.................................................................................... 9
3.1 Summary .................................................................................................................................9
3.2 Panel Description....................................................................................................................9
3.2.1 Front Panel.................................................................................................................9
3.2.2 LED State Information ...........................................................................................10
3.2.3 Rear Panel................................................................................................................11
4OPERATION..................................................................................... 12
4.1 Summary ...............................................................................................................................12
4.2 LCD Operation .....................................................................................................................13
4.2.1 Menu Selects ............................................................................................................13
4.2.2 Provision menu ........................................................................................................14
4.2.3 Control......................................................................................................................15
4.2.4 Status ........................................................................................................................16
4.2.5 Test............................................................................................................................19
4.2.6 Function Setting.......................................................................................................19
4.2.7 IPAddress ................................................................................................................20
5INTERFACE...................................................................................... 21
5.1 Command Line Interface (CLI) ..........................................................................................21
5.1.1 Commands ...............................................................................................................21
5.1.2 Network Configuration...........................................................................................31
5.1.3 SNMP Configuration...............................................................................................31
5.2 SNMP MIB Table..................................................................................................................32
5.2.1 entPhysicalEntry .....................................................................................................32
5.2.2 propertyEntry..........................................................................................................32
5.2.3 currentAlarmEntry.................................................................................................32
5.2.4 discretePropertyEntry.............................................................................................33
5.2.5 alarmsIdent..............................................................................................................33
5.2.6 commonIdent...........................................................................................................33
5.2.7 commonMulticastGroup.........................................................................................34
5.2.8 heOpticalAmplifierGroup.......................................................................................34
5.2.9 heBaseIdent..............................................................................................................35

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5.2.10 hePowerSupply......................................................................................................35
5.2.11 heFans.....................................................................................................................36
5.2.12 Trap.........................................................................................................................36
5.3 WEB Interface ......................................................................................................................37
5.3.1 WEB browser...........................................................................................................37
5.3.2 Monitoring ...............................................................................................................38
5.3.3 Parameter.................................................................................................................39
5.3.4 Control set................................................................................................................40
5.3.5 Event log...................................................................................................................41
5.3.6 IP & Login set ..........................................................................................................42
5.3.7 SNMP set..................................................................................................................43
5.3.8 Manual......................................................................................................................44
6PERFORMANCE CHECK ................................................................ 45
6.1 Precautions for Testing.........................................................................................................45
6.2 Power Supply ........................................................................................................................45
6.3 Primary Test..........................................................................................................................45
6.3.1 Required Measuring Instruments..........................................................................45
6.3.2 Performance Test.....................................................................................................45
6.4 Alarm Test .............................................................................................................................46
7MAINTENANCE............................................................................... 47
7.1 Maintenance Cautions..........................................................................................................47
7.2 Trouble Shooting Procedures...............................................................................................47

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Figure Contents
Figure 1. Electric Power Supply Connection..............................................................................................7
Figure 2. Front Panel...............................................................................................................................9
Figure 3. Rear Panel..............................................................................................................................11
Figure 4. Shelf Type EDFAMeasuring Instrument Setup...........................................................................46
Table Contents
Table 1. The Inventory of Shelf Type EDFA...............................................................................................7
Table 2. Laser On/OFF Key Switch...........................................................................................................9
Table 3. Control Switch ...........................................................................................................................9
Table 4. LED State..................................................................................................................................9
Table 5. Optical Connection Port ............................................................................................................10
Table 6. Communication Terminal Port ...................................................................................................10
Table 7. Provision Menu Descriptions .....................................................................................................15
Table 8. Alarm Descriptions ...................................................................................................................18
Table 9. The Instrument for measuring the performance ............................................................................45
Table 10. In the cases alarm events and Alarm LEDs signs ........................................................................47

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1INTRODUCTION
1.1 About this Manual
This manual consists of six sections. They are; Introduction of the Shelf Type EDFA,
System Requirements, Installation, Operation, Testing, and Trouble Shooting. A brief
chapter outline of this manual is below.
Chapter 1, The introduction of the Shelf Type EDFA and safety cautions for proper
installation.
Chapter 2, How to install the Shelf Type EDFA.
Chapter 3, Panel description.
Chapter 4, Utilizing the LCD and Menu switch operation.
Chapter 5, Interface.
Chapter 6, EDFA Performance check method.
Chapter 7, Maintenance and repair.
1.2 General Descriptions
The Shelf Type EDFA operates in the range of 1550 nm wavelength. The Pump Laser
Diode is used as an Erbium Doped Fiber pumping energy source for the EDFA. For
better system performance isolators are installed on the input and output of the EDFA’s
optical terminals. For convenient operation, SNMP, LED indicators, LCD, and Menu
functions are assisted. The Shelf Type EDFA is available in a variety of electrical power
options such as AC (100V ~ 240V), DC (-48V).
1.3 Mechanical Dimensions and Operational Conditions
The Shelf Type EDFA is installable in a 19” 1U or 2U Shelf.
The size is 432(W) × 375(D) × 44 or 88 (H) mm.
The storage temperature must be kept between -40°C to 85°C.
The relative humidity range is 10~95%.
The operating temperature range is between 0°C to 50°C.
The LCD Backlight is assurance between -10°C to 60°C.
The electrical power consumption depends on the applied use of the EDFA.
For more information about electrical power consumption read the TEST REPORT.
1.4 Precautions for Installation and Warnings
The user must ensure that there is enough air flow and convection through the upper and
lower panels.
The Shelf Type EDFA has its own internal circuitry plus an internal electrical voltage
converter. Both generate heat. Unrestricted air flow is required for proper operating
conditions.
Do not shut-down the input signal when the EDFA is turned on. As the EDFA operates on
high current and high optical power condition, any sudden removal of input signal or
plugging-out of input signal line may cause fatal damage to the active components in the
amplifier. It is recommended to shutdown the laser using ALS-Key before turn-on or turn-
off the power switch.
In case of Power Supply Unit(PSU) exchange, make sure to turn off the power switch of
the PSU before plug-in (or plug-out) the PSU to (or from) the Amplifier Shelf. In addition,

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it is also strongly prohibited from iterating of power on/off in very shot interval. The
recommended on/off interval is at least 5secconds.
The optical adapters for the EDFA input and output are located on the front panel of the
Shelf Type EDFA. When received from the factory the optical adapters have a cap on
them for safety and protection. Until the Shelf is installed you need to leave the caps on.
The operator/user must keep the surface of the optical connecter clean. If the surface of
the optical connecter is contaminated with dirt or obstructions the surface of the optical
connecter may be damaged as soon as the Laser is turned on.
1.5 Grounding Considerations
The Shelf Type EDFA includes Laser Diodes and Photo Diodes those are extremely
sensitive to electrical static. You must always handle the EDFA with extra care. When
you unpack or install the EDFA you must obey all the ESD (electro static discharge)
precautions as well as work with a grounded wrist strap. Therefore, proper ESD
precautions are always recommended. To avoid performance degradation or loss of
functionality, install in a properly grounded working shelf. The F.G. terminal must be
connected to Earth Ground for protection of the unit during installation and operation.
To protect the installation and to prevent unexpected accidents, such as lightning, static
electricity, short circuit, surges, etc..., you must use a grounded receptacle for the AC
power cord.
1.6 Laser Safety
IEC®60825 Class 1M laser product.
All versions are Class 1M laser products per IEC 60825-1:2007-03
CAUTION : Use of controls, adjustment, and procedures other than those specified
herein may result in hazardous laser radiation exposure.

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2PREPARATION
2.1 Summary
In this chapter, the first steps of installation after unpacking are covered. The box
inventory, basic electrical and optical connections are presented.
2.2 Check the Contents
After unpacking you need to check the contents. The inventory should be as follows:
Table 1. The Inventory of Shelf Type EDFA
Item
Quantity
Remarks
EDFA Shelf
1
Including EDFA
Instructions manual
1 book
TEST REPORT
1 booklet
Inspect the outside of the EDFA.
WARNING: Remember to take all proper grounding precautions.
2.3 How to Connect the Power Supply
Figure 1 shows the electrical connectors with the input power terminals on the front panel
of the Shelf Type EDFA.
The user must select the applicable power connections for their application and properly
connect to the input power terminal.
(DC) (AC)
(a) 1U Shelf
(DC) (AC)
(b) 2U Shelf
Figure 1. Electric Power Supply Connection

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DC input voltage range: -36~-76V(for DC-48V)
AC input voltage range: 100~240 VAC, 50~60 Hz
DC Power supply: When you connect DC power supply, handle it very carefully. Make
sure you connect the positive (+) and negative (-) connections properly, positive supply to
the positive input and negative supply to the negative input. If damage is caused by the
user due to improper connections and the product does not work properly or malfunctions,
The manufacturer is not liable for repairs or replacement of the unit. After connecting the
DC power cord to the unit, turn on the power switch on the rear panel. If LCD on the
front panel turns on, the system electric power supply is normal (OK).
DC connector dimensions
Below are the specifications on the DC connectors:
AC Power Supply: There is a fuse in the AC power socket. After connecting the AC
power cord to the unit, turn on the power switch on the rear panel. If LCD on the front
panel turns on, the system electric power supply is normal (OK).
If LCD does not come on, you need to check the power-in cord and then the AC power
fuse.
2.4 How to connect the optical cable
The Shelf Type EDFA supports only SC/APC optical connectors.
According to the users requirements connect the optical cable to the input and the output
optical adapters on the front panel of the Shelf Type EDFA.

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3DESCRIPTION
3.1 Summary
In this chapter, general information about the front and rear panels of the Shelf type
EDFAare explained. The individual switches and connections will be introduced.
3.2 Panel Description
3.2.1 Front Panel
Figure 2 shows the front panel of the Shelf Type EDFA. The components are: an LCD
capable of 2×20 letters for reading the menu states, 4 menu control switches for selecting
the LCD menus, a Laser ON/OFF key switch, an EDFA state indicating LED and optical
adapter cassette.
Laser
Down
Menu Enter
On
Off
Up
Ethernet
RS-232C
Comm
Status
Laser
Out 1Input Out 2 Out 3 Out 4
(a) 1U Shelf
Up
Status
Down
Menu
Comm Ent
Laser
Ethernet
Rs-232C
ON
Laser
OFF
Optical Amplifier
Input Out 2 Out 3 Out 4 Out 5 Out 6 Out 7 Out 8Out 1
(b) 2U Shelf
Figure 2. Front Panel
Laser On/Off Key Switch
Table 2. Laser On/OFF Key Switch
Conditions
Performance
ON
Operate EDFA normally
OFF
Forcefully turn off the EDFA output power
Control Switch
Table 3. Control Switch
Switch
Performance
MENU
Enter the menu or move the previous menu
ENTER
Apply the current menu
UP/DOWN
Move the menu items
LED state on the front panel
Table 4. LED State

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Condition
Color
Performance
Laser
Green
Pump Lasers On
Red
Pump Lasers Off
Status
Green
Normal Operation (No Alarm)
Red
LOS Alarm / LOPAlarm
Yellow
Bias / Temp / Case Temp/ Power / FAN Alarm
Comm
Blue
Ethernet Link On
Optical Connection Port on the front panel
Table 5. Optical Connection Port
Port
Performance
Input
Optical Input Port for Launching Input Signal
Out1~4
Optical Output Port for Amplified Signal
Communication Port on the front panel
Table 6. Communication Terminal Port
Port
Performance
Ethernet
Ethernet Communication Port for SNMP Monitor and Control
RS-232C
Serial Communication Port for RS-232C Monitor and Control
3.2.2 LED State Information
LOS (Loss of Signal) Alarm
When the input optical signal power to the EDFA is lower than the minimum input
conditions, the color of status LED changes green to red (see the TEST REPORT). The
threshold for triggering the loss of input signal alarm is set below the minimum optical
input level.
If the LOS alarm is activated the EDFA automatically changes to the Laser Shutdown
state, the output power is turned off.
In response to a loss of input signal, the bias current of the pump laser diode goes into a
shutdown state to prevent the development of dangerous laser diode operation conditions.
If laser shutdown does not occur, the pump laser diode can be damaged.
This condition is automatically reset when the input power is restored to a power above
the alarm threshold for the EDFA. The EDFA returns to its normal state, the color of
status LED changes red to green, and the Laser ON state condition returns.
LOP(Loss of Output Power) Alarm
When the optical output power of the EDFA is lower than the reference power, the color
of status LED changes green to red (see the TEST REPORT). This level is commonly
3dB below the reference output power.
If the Laser OFF state is selected from the LCD menu, the color of status LED changes