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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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

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green to red.
The LOP alarm turns off when the output optical power of the EDFA is normal and the
color of status LED changes red to green.
BIAS Alarm
The Pump Laser Diode provides pumping energy to the Erbium Doped Fiber in the EDFA.
The pumping power of the Pump Laser Diode is controlled by applying a bias current. If
the bias current of the pump laser diode is loaded above 95% of the end-of-life (EOL)
value, the pump bias current alarm is activated. The EOL bias current is defined as 120%
of the beginning-of-life (BOL) bias current. The pump laser diode driver is limited to
never exceed the EOL bias level. This is an indicating LED for an over current
condition of the Pump Laser Diode bias current.
If the BIAS alarm is activated, the color of status LED changes green to yellow.
TEMPAlarm
The internal temperature of the Pump Laser Diode must be kept the operating range. If
the internal temperature of the Pump Laser Diode goes outside of the operational range,
the TEMP alarm is activated.
If the TEMP alarm signal is activated, the color of status LED changes green to yellow.
POWER Alarm
The voltage of power supply must be kept the operating range. If the voltage of power
supply goes outside of the operational range, the POWER alarm is activated.
If the POWER alarm signal is activated, the color of status LED changes green to yellow.
FAN Alarm
The fans must be kept the operating. If the fans are not operated, the FAN alarm is
activated.
If the FAN alarm signal is activated, the color of status LED changes green to yellow.
3.2.3 Rear Panel
The rear panel of the Shelf Type EDFA consists of two pluggable type power modules
and two fans.
Figure 3. Rear Panel

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4OPERATION
4.1 Summary
In this chapter, the operation of the EDFA using the LCD menu will be explained. The
diagram below shows the operational menu tree selectable.
Provision
EDFA DEACT
EDFAACT
LASER
Laser OFF
Laser ON
Buzzer OFF
Buzzer ON
Status
Output Power
Input Power
LD Bias
Time
Function Setting
Test
Menu
Laser Key Switch is “ON”
M
MA AI IN N M ME EN NU U
S
SU UB B M ME EN NU U
LD Thermistor
Case Temperature
Alarm
LED, Buzzer
EDFA Model
Control
Buzzer
IPAddress

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4.2 LCD Operation
The functions of the Shelf Type EDFA are supported by selecting the LCD Menu switch
on the front panel. If an electric power is applied, the initial display of the LCD display
is as follows.
WARNING: In all LCD menus if you do not select a menu switch for about 15 seconds,
the menu automatically returns to the previous menu state.
4.2.1 Menu Selects
The main menu is Provision, Control, Status, Test, Function Setting, IP Address. You
can select any menu by the Menu switch.
The procedure of selection in the MAIN MENU is as follows:
Push the Menu switch on the start screen.
The LCD display is changed to the next screen and then the cursor is on the “Provision”
menu.
If you push the Down switch, the cursor moves to the “Control” menu.
With the cursor placed on the menu “Control”, if you push the Down switch, the LCD
screen changes and the cursor moves to the next menu, “Status”.
With the cursor on the menu “Status,” push the Down switch, the cursor moves to the
“Test” menu.
From the above screen push the Down switch.
The cursor moves to the “Function Setting” menu, changing the LCD screen.
> Status
Test
Provision
> Control
> Function Setting
IPAddress
> Provision
Control
Optical Amplifier
Company Name
Status
> Test

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In this condition MAIN MENU is finished.
4.2.2 Provision menu
User is able to control the operational state of the EDFA in the Provision menu. It is the
menu for selecting activate (ACT) and deactivate (DEACT) operational states of the
EDFA.
Provision menu
LCD display is changed to the next screen and then the cursor is on the “Provision” menu.
From the cursor on the “Provision” if you push the Enter switch, the cursor moves from
the Provision Menu to the SUB MENU.
The first line of the above screen indicates the current state of the EDFA.
The initial state of the Provision menu depends on the setting state.
If you want to change the current state, move the cursor by the Up or Down switch to the
menu you wish to select.
From the current state move the cursor by Up or Down switch to the position on the
“DEACT” menu.
Push the Enter switch.
The LCD screen displays the operation selected above is complete.
If you push Enter or Menu switch, the cursor moves to the “DEACT” menu. And if you
do not select a menu switch for about 15 seconds, the menu automatically returns to the
previous state and display.
After selecting the desired state, if you want to move to the MAIN MENU above on the
screen you can change the menu with the Menu switch.
Provision State Descriptions
Within the Provision menu the start state is the ACT (Activate) state when the power is
turned on.
If you select the DEACT state at the Provision Menu, the EDFA is working an normal
operation except the alarm information. The table shows the operational state of the
EDFA at the Provision menu.
> Provision
Control
Set & Store
EDFA : DEACT
EDFA ACT
Setting ACT
EDFA ACT
Setting DEACT

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Table 7. Provision Menu Descriptions
ACT State
DEACT State
EDFA: normal operation
EDFA: normal operation
Status LED: Green
(Alarm information is not detected)
4.2.3 Control
In the Control Menu, the optical output power of the EDFA can be controlled by Laser
ON or Laser OFF. Also you can select the Buzzer sound in the Buzzer Control menu.
From the MAIN MENU using the Menu switch move the cursor to the “Control”.
If you push Enter switch, the cursor moves to the “LASER” menu.
Laser ON
From the below screen the first line indicates the current selected laser state of the EDFA.
If you want to select a different state from your current laser state, using the Up or Down
switch, move the cursor to the menu that contains the state you wish to select.
-
To activate the output of the EDFAnormally, put the cursor on the LASER ON position.
Push the ENTER Switch (Laser Key switch is ON state).
If the Laser Key switch is OFF state, Laser On/Off is not changed, it remains the same
state.
Push Enter or Menu switch.
If you want to turn off the output of the
EDFA, push the Enter switch to move the
cursor to the “OFF” position.
Provision
> Control
Laser Off
Setting On
Laser Off
Setting Off
Set & Store
Laser : On
Key switch
Check Please..
> LASER
BUZZER

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In this state push the ENTER switch.
Note: When the Laser is selected the “Off”, the output of the EDFA also turns off and the
Laser LED becomes red.
Buzzer ON
If an alarm has activated on the EDFA, Buzzer sound is activated. You will hear a
beeping sound. As soon as the alarm condition of the EDFA is removed, the Buzzer
sound automatically stops.
From the below screen the first line indicates the current selected buzzer state of the
EDFA.
If you want to select a state different from your current buzzer state, using the Up or
Down switch, move the cursor to the menu that contains the state you wish to select.
Push the ENTER switch
If you want to turn off the buzzer, push the Enter switch to move the cursor to the “OFF”
position.
In this state push the ENTER switch.
When the Buzzer OFF is selected and the EDFA alarm is activated, the Buzzer sound is
not activated.
4.2.4 Status
In the Status menu you are able to monitor the operational state of the EDFA.
Set & Store
Laser : Off
LASER
> BUZZER
BUZZER Off
Setting On
Set & Store
BUZZER : ON
Set & Store
Buzzer : Off
Buzzer Off
Setting Off

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If you push the Enter switch, the cursor moves to the “Input Power” menu. The Input
Power is the optical input power.
Input Power is displayed.
The Output Power is the EDFAoutput power monitoring.
The Output Power is displayed the EDFAoutput power of several ports
The LD Bias Current is the bias current of the pump laser diode.
The unit of LD Bias Current is [mA]. The x of LDx is the number of used laser diode.
The LD Thermistor is the pump laser diode temperature. The unit is centigrade [℃].
> Input Power
Output Power
Input Power
+XX.XX dBm
> LD Bias Current
LD Thermistor
LD Bias Current
> LD Thermistor
LD Bias Current
LD1 : XXXX mA
LD Bias Current
LDx : XXXX mA
> Status
Test
Input Power
> Output Power
Output Power 1
+XX.XX dBm
Output Power x
+XX.XX dBm

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The Temperature is the EDFA module temperature. The unit is centigrade [℃].
Using the Alarm menu you are able to check the EDFAAlarms.
To move another alarm state, push Up/Down switch.
…
Table 8. Alarm Descriptions
Name
Variable
Descriptions
CaseTemp
IPM
OPM
POWER 1
POWER 2
FAN 1
FAN 2
LD1 BIAS
LD1 THER
Case Temperature
Input Power
Output Power
Power Supply 1
Power Supply 2
Fan1
Fan2
Current
Thermistor
Shows the temperature state of the EDFA
module. (OK: Normal, FAIL: Abnormal)
Shows the input optical signal power of the
EDFA. (OK: Normal, FAIL: Abnormal)
Shows the output optical power of the EDFA.
(OK: Normal, FAIL: Abnormal)
Shows the Power Supply state of the EDFA
module. (OK: Normal, FAIL: Abnormal)
Shows the Power Supply state of the EDFA
module. (OK: Normal, FAIL: Abnormal)
Shows the FAN state of the EDFA module
(OK: Normal, FAIL: Abnormal)
Shows the FAN state of the EDFA module
(OK: Normal, FAIL: Abnormal)
Shows the state of the Pump Laser Diode Bias
current. (OK: Normal, FAIL: Abnormal)
Shows the temperature state of the Pump Laser
Diode. (OK: Normal, FAIL: Abnormal)
EDFAModel Name is the EDFAmodel name of built in the Shelf.
LD Thermistor
LD1 : XX ℃
LD Thermistor
LDx : XX ℃
Temperature
> Alarm Status
CaseTemp : OK
IPM : OK
IPM : OK
OPM : OK
LD1 Ther : OK
CaseTemp : OK

DKT A/S
Fanoevej 6
DK-4060 Kirke Saaby
Tlf
Fax
E-mail
Web
[phone]
[phone]
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Network Managed OpticalAmplifier User’s Manual Rev 1.3
OFA-CCS/CCD Series June 2014
19
4.2.5 Test
From the Test menu you are able to test the LED, Buzzer.
If you push the Enter switch, the cursor moves to the “LED Test” menu. In the LED
Test menu the operating state of all the LEDs can be checked.
If you push the Down switch, the cursor moves to the “Buzzer Test” menu. Then if you
push the Down switch, the operating state of the Buzzer can be checked.
4.2.6 Function Setting
The Function Setting menu is Time.
The timer setting procedure for the internal timer is as follows:
In the below screen the Current Time indicates the present date and time.
In the Setting Time Menu, you can change the date and time to the values you need.
Using the Up/Down, Enter switch move the cursor to the position that you want to change.
If you push the Down switch, the cursor moves to another position. And Up switch
change the time value
Status
> Test
> LED Test
Buzzer Test
LED Test
>Buzzer Test
> Time
> Present Time
Setting Time
YYYY MM DD HH MM SS
200 4 0 6 0 9 1 5 0 5 3 0
Present Time
>Setting Time
> EDFA Model Name
Input Power
YYYY MM DD HH MM SS
200 4 0 6 0 9 1 5 0 5 3 0

DKT A/S
Fanoevej 6
DK-4060 Kirke Saaby
Tlf
Fax
E-mail
Web
[phone]
[phone]
www.dktcomega.com
[e-mail]
Network Managed OpticalAmplifier User’s Manual Rev 1.3
OFA-CCS/CCD Series June 2014
20
If you push the Enter switch, the time value is stored.
4.2.7 IPAddress
The IPAddress menu is showed IPAddress of network.
YYYY MM DD HH MM SS
200 5 0 6 0 9 1 5 0 5 3 0
55
YYYY MM DD HH MM SS
200 5 0 6 0 9 1 5 0 5 3 0
30
IPAddress :
1 2 3 . 4 5 6 . 0 . 7 8 9
30