Exo EDFA1550 series User manual

EDFA
1550nm High Power PON EDFA
User’s Manual
MODEL: EDFA1550 Series

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Contents
1. Features ……………………………………………………………………………2
1.1Product Features…………………………………………………………............2
2. Installation………………………………………………………............................2
2.1 Before Installation……………………………………………………………...2
2.2 Installation…………………………………………………..………………….3
3. Set and Operation…………………………………………………………….3～7
3.1 Technical Parameters………………………………………………………… 3
3.2 Front Panel Guide…………………………………………...........................5
3.2.1 LCD Display………………………………………….……………………5
3.2.2 Laser In..……………..…………………………….……………………....5
3.2.3 Laser Out..……………..………………………….…….…………………5
3.2.4 Power.…………………….………………………….……….…………….5
3.2.5 Laser IN Light..……………………….…………….………........................5
3.2.6 Laser OUT Light.…………………….….…..……….……… ……………..5
3.2.7 Status Button....……………………….……………………………………..5
3.2.8 Function Switch.…………………………………………………………….5
3.2.8.1 Model……………………………………………….……………………..6
3.2.8.2 Output Power…………………………….……………………………....6
3.2.8.3 Bias Current………………………….…………..……………………....6
3.2.8.4 Laser Temp………………………………………………………………6
3.2.8.5 Cooling or heating Current……………………………..……………....6
3.2.8.6 +5V Test………………………...……………………...…..……………...6
3.2.8.7 -5V Test…………………………………………………….……………...6
3.2.8.8 SN………………………………………...…..………..….………………6
3.2.8.9 Address Code………………………………..…….…..…………………6
3.3 Rear Panel.. ……………………………..…………………………………..7
3.3.1 RS232 Port………………………………………………………………….7
3.3.2 RS485Port………………………………...…………………..…………….7
3.3.3 RJ45 Port………………………………………...………..………………...7
3.3.4 Power Supply……………………………………………….……………..7
3.3.5 Power Socket………………………………………………...….................7
4. Notes……………………………………...………...…….……………………7～8
5. Normal Trouble …………………………...………….....……………………8～9
6. Warranty Terms……………………….……………………………………..9～10

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1. Features
1.1 Products Features
1.1.1Each output port for optical amplifier has built-in well-performed
CWDM. Every external up-link optical port of optical amplifier can
connect with OLT PON port very conveniently in the front panel
1.1.2 Double cooling system to protect the pump laser.
1.1.3 RJ45 Port for Plug-in SNMP system can realize remote
management at any time.
1.1.4 Standard RS232 and RS485 Port.
1.1.5 Adopting JDSU, Bookham and Fitel laser.
1.1.6 LCD displays the parameters, functions and trouble alarm.
1.1.7 Switch power supply can work in the range of 90V～265V AC or
-48V DC .
2. Instillation
2.1 Preparation before shipment
2.1.1 Please check the machine if there is any damage.
2.1.2 Please check if the accessories are the complete.
2.2 Installation
2.2.1 Please keep space of 4.5cm in the shell for cooling.
2.2.2 Please check the power socket and make sure it is well earthed.

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And the earthed impedance should be less than 4Ω, otherwise the
amplifier maybe damaged or the signal quality maybe influenced.
2.2.3 Please make sure to put the power button OFF before connect the
power cable.
2.2.4 Please make the fiber clear before connecting it.
3. Set and Operation
Parameter
Items
25
26
27
28
29
30
31
32
33
34
35
36
Output Power （dBm）
25
26
27
28
29
30
31
32
33
34
35
36
Output Power（mW）
320
400
500
640
800
1000
1280
160
0
2000
2560
320
0
400
0
Input Power(dBm)
-3～10
Wavelength（nm）
1530～1565
Output Sability(dB)
<±0.2
PEDFArization Sensitivity（dB）
<0.2
PEDFArization model Dispersion
（PS）
<0.5
Optical Return Loss（dB）
≥45
Fiber Connetor
FC/APC、SC/APC
Noise Figure（dB）
<5.0(0dBm Input)
Network Management Port
RJ45(SNMP)、RS232、RS485
Power Consumption（W）
50～100
Working Voltage (V）
220VAC(90～265)、-48DCV
Working Temp（℃）
-20～85
Size （mm）
530(L)×486(W)×88(H)
Weight（Kg）
8.0

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3.2 Products Series
Total Output
（dBm）
Total Output
（mW）
Output No
Each Outputs（dBm）
26
400
4
18.5
8
15.0
27
500
4
19.5
8
16.0
28
630
4
20.5
8
17.0
29
800
4
21.5
8
18.0
30
1000
8
19.0
16
15.5
31
1250
8
20.0
16
16.5
32
1600
8
21.0
16
17.5
33
2000
8
22.0
16
18.5
34
2500
16
19.5
32
16.0
35
3200
16
20.5
32
17.0
36
4000
16
21.5
32
18.0
37
5000
16
22.5
32
19.0

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3.2 Front Panel Guide
3.2.1 VFD（LED）Screen
It dispels the parameters of the optical amplifier. There is several
second’s delay after the power connected. When the light turn from red
to green, the machine begin to work. If the light is still red and the
screen shows READY:KEY OFF, this means the power connected but no
optical input.
3.2.2 CATV In
The optical input
3.2.3 Out
The Optical Output
3.2.4 Power
Turn to green after connected
3.2.5 Laser In
Green means the machine is working properly
3.2.6 Laser Out light
Green means output is properly, the light turn off if no optical out.
3.2.7 Status Light

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Green light menus the amplifier is working, red means no output or
trouble, at the same time the screen will display the trouble
information.
3.2.8 ENT button
Press this button to see the parameters in the screen.
3.2.8.1 Model number
3.2.8.2 OUTPUT This output is the value tested after the pump laser out
3.2.8.3 BIAS
The bias current of pump laser. If the value comes out of the set
value, the machine will shine.
3.2.8.4 Laser Temp（TEMP）
The laser works between 20℃and 30℃，if the tested value comes
out of this range , the machine will warm.
3.2.8.5 Cooling/Heating Current（HEATING）
This displays the working current of the pump laser(mA) when the
pump laser is cooling or heating ，The best working temp of the
pump laser is 25℃, if higher or lower, the power laser will begin to
heat or cool.
3.2.8.6 + 5V test（READS）
3.2.6.7 - 5V Test（READS）
3.2.8.8 SN: Series Number
3.2.8.9 Address Code

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Can be set by RJ 45 port
3.3 Rear Panel Guide
3.3.1 RS232 Port
For local computer network management.
3.3.2 RS485 Port
For remote computer network management.
3.3.3 RJ45 Port
SNMP，for remote computer network management.
3.3.4 Power Switch
3.3.5 Power Socket
AC220V or DC-48V power input.
4. Notes
1. The main component of the amplifier laser is sensitive to the static
electricity, so please keep the amplifier away from the static electricity.
Furthermore, please keep it away from caustic things. Please keep the
amplifier in temperature between -25℃and 65℃.
2. Because big power may damage the output port, so it is advised to split
to more than 4 outputs.

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3. Please don’t now attempt to look into the optical connectors when
power applied, eye damage may result.
4. Please don’t block up the heating dispersion hole and keep the
machine aired.
5. Please don’t unfold the machine or remove any parts of the
machine.
6. Please don’t insert the connectors when the power is on.
7. Please don’t test the EDFA more than 5 times.
8. Big power may damage the output port, so it is advised to split to
more than 2 outputs.
9. Input power influences C/N, so advised input value is 4dBm.
Input and C/N
Input
（dBm）
7
6
5
4
3
2
1
0
-1
-2
-3
C/N
（dB）
52.
4
52.
2
52.
0
51.
6
51.
1
50.
6
50.
1
49.
5
48.
8
48.
1
47.
3
5. Solution to some ordinary problem
5.1 Power supply light STATUS: green
LED light LASER: red

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VFD display: NO LASER INPUT
Reason: N0 1550nm optical input
Solution: Input 1550nm optical signal
5.2 In VFD screen it displays the output value from the pigtail from
pump laser, if the tested value is lower than screen.
Reason: 1. The output of amplifier is out of the range of optical meter
2. the input optical power is out of the requested value( -3～
10dB).
3. Too big loss in the test pigtail.
4. There is dust in the connectors.
5. The wavelength of the transmitter is big different from
1550nm will make the output value down.
Solution:
Use absolute alcohol to wash the all the connects and the test
point of optical meter.
Note:
1. Don’t use Chinese optical meter to test EDFA.
2. Don’t test EDFA with pigtail again and again, it will hurt the
fiber connector and make the factual power become smaller.
6. Warranty Terms
EDFA1550 Series optical amplifiers are covered by TWO YEAR
LIMITED WARRANTY, which starts from the initial date of your

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purchase. We provide its customer whole-life technical supports. If
warranty is expired, repair service only charges parts (if required). In the
event that a unit must be returned for service, before returning the unit,
please be advised that:
1. Warranty mark pasted on the housing of unit must be in good
conditions.
2. A clear and readable material describes model number, serial
number and troubles should be offered.
3. Please pack the unit in its original container. If the original
container is no longer available, please pack the unit in at least 3
inches of shock absorbing material.
NOTE: we do not assume responsibility for damage caused by
improper packing of returned unit(s).
The following situation is not covered by warranty:
1. The unit fails to perform because of operators’ faults.
2. Warranty mark is modified, damaged and/or removed.
3. Damage caused by Force Majuro.
4. The unit has been unauthorized alteration and/or repaired.
5. Other troubles caused by operators’ faults.