Questtel L-RF-EDFA-14dBm User manual
L-RF-EDFA-14dBm
User Manual
CATV EDFA Optical Amplifier
1550nm 14dBm
www.questtel.com sales@questtel.com
- 1 -
Table of contents
Table of contents....................................................................................................... - 1 -
Foreword................................................................................................................... - 2 -
1. Product Summary.................................................................................................. - 3 -
2. Performance Characteristics ................................................................................. - 3 -
3. Block diagram....................................................................................................... - 4 -
4. Technique Parameter ............................................................................................ - 4 -
4.1 Link test conditions...................................................................................... - 4 -
4.2 Technique Parameters.................................................................................. - 5 -
5. External Function Description.............................................................................. - 6 -
5.1 Front Panel Description ............................................................................... - 6 -
5.2 Rear Panel Description ................................................................................ - 7 -
5.3 Displayed Parameter description ................................................................. - 8 -
6. Installation debugging..........................................................................................- 12 -
6.1 Unpack and Check..................................................................................... - 12 -
6.2 Instruments and Tools................................................................................ - 12 -
6.3 Installation Steps........................................................................................ - 12 -
7.Clean and maintenance method of the optical fiber active connector ................ - 13 -
www.questtel.com [email protected]
EDFA Optical Amplifier User Manual
L-RF-EDFA-14dBm
- 2 -
Foreword
This manual applies to L-RF-EDFA series 1550nm EDFA. It mainly describes
the performance characteristics, technical parameters, installation and debugging,
common troubleshooting, and other related content of the product. In order to ensure
that the equipment can be successfully installed and safely operated, please read this
manual carefully before installing and debugging the equipment. And the installation
and debugging should be strictly according to the specified steps on the manual to
avoid unnecessary damage to equipment or accident harm to the operator. Any
questions, please contact with us in time.
Special Tips:
1）Er-doped Fiber Amplifier is high end professional equipment, and its installation
and debugging must be operated by special technician. Read this manual carefully
before operating to avoid damage to equipment caused by fault operation or
accident harm to the operator.
2）While the fiber amplifier is working, there is an invisible laser beam from the
optical output adapter on the front panel. Avoiding permanent harm to the body
and eye, the optical output should not aim at the human body and human should
not look directly at the optical output with the naked eye!
3）Please make sure that the ground terminal of the case and power outlet has been
reliably grounding before turning on the power (Grounding resistance should be <
4Ω) to prevent the static damage the pump laser device and harm to human
because of case charged.
4）To ensure the equipment can work stable over a long time in voltage unsteady or
poor voltage wave region, it´s recommend to the customer that he equips special
AC regulated power supply, or even AC uninterrupted power supply (UPS) system
for conditional regions. In the region with large temperature variation environment
(The equipment's ideal work environment temperature is 25°C) or bad room
environment it´s recommend to the customer that he equips special air-condition
www.questtel.com [email protected]
EDFA Optical Amplifier User Manual
L-RF-EDFA-14dBm
- 3 -
system to improve the work environment.
1. Product Summary
L-RF-EDFA series 1550nm optical fiber amplifier is the important optical relay
transmission equipment in 1550nm optical fiber communication system. It mainly
used for the long distance optical fiber transmission of TV image signal, digital
television signal, telephone voice signal and data (or compressed data) signal. This
product does use the high-performance erbium doped fiber and low noise pump laser,
and built-in perfect embedded automatic monitoring system, to ensure the excellent
performance indicators.
2. Performance Characteristics
Automatic control the output optical power.
The output optical power is adjustable, attenuation range is 0-3dB.
Adopt high-performance erbium doped fiber, high efficiency energy conversion.
Adopt advanced 32 bit processor, coordinate with perfect automatic monitoring
systemic circuit. It can timely and accurately monitor optical output power and
various work status of the pump laser, ensures the stable optical output power and
can effectively extend the working life of the pump laser.
Built-in blue screen 160×32 dot matrix LCD monitor on the front panel,
accurately showing all working status parameters.
19″1U height standard rack mount, equipped standard IEEE802.3 10Base-T
Ethernet interface and RS232 interface, can expediently realizes network
management monitoring.
Full support <GB/T 20030-2005HFC Network device management system
specification>.
www.questtel.com [email protected]
EDFA Optical Amplifier User Manual
L-RF-EDFA-14dBm
- 4 -
3. Block diagram
4. Technique Parameter
4.1 Link test conditions
Special instructions: The performance parameters of this manual according to the
measuring method of GY/T 184-2002 < CATV system analog optical fiber amplifier
technical requirements and measuring method>, and tested in the following
conditions.
Test condition: With standard optical fiber and standard optical receiver composed
the test link. Set 59 PAL-D analog TV channel signal at 550MHz frequency range
under the specified link loss. Transmit digital modulation signal at range of 550 MHz
~ 862MHz, the digital modulation signal level (in 8 MHz bandwidth) is 10dB lower
than analog signal carrier level. When the input optical power of optical receiver is
-1dBm, measure the C/CTB, C/CSO and C/N.
www.questtel.com [email protected]
EDFA Optical Amplifier User Manual
L-RF-EDFA-14dBm
- 5 -
4.2 Technique Parameters
Item
Unit
Technique parameter
Remark
Operating bandwidth
nm
1535 - 1565
Input optical power
range
dBm
-5 - +10
Output optical power
dBm
13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24
Optional
Output power stability
dBm
±0.2
Noise figure
dB
≤ 5.0
Input optical
power 0dBm
Return loss
Input
dB
≥ 45
Output
dB
≥ 45
Pump leakage
power
Input
dBm
≤ -30
Output
dBm
≤ -30
Optical connector type
FC/APC or SC/APC
Power supply voltage
V
AC160V - 250V（50 Hz）
Consumption
W
< 30
Operating Temperature
Range
°C
-5 - +55
Maximum operating
relative humidity
%
Max 95% No Condensation
Storage Temperature
Range
°C
-30 - +70
Maximum storage
relative humidity
%
Max 95% No Condensation
Dimension
mm
483(W)×340(D)×44(H)
- 6 -
5. External Function Description
5.1 Front Panel Description
Schematic diagram of the front panel
1) Power indicator: Switching power supply one power working –yellow; dual
powers working –green.
2) Input optical power indicator：The input optical power is lower than the given
threshold –red; normal –green.
3) Pump working status indicator: Red light means the pump is not working, but the
machine parameters are normal; flashing red light means the machine has broken
down, related fault reason see the alarm menu of the display menu; Green light
means the pump is working normal.
4) Output optical power indicator: This light turns on when the output optical power
is large than +10dBm.
5) 160×32 Dot-matrix LCD screen: used to display all the parameters of the
machine.
6) Display the exit or cancel key of the setup menu.
7) Display the up or increase key of the setup menu.
8) Display the down or decrease key of the setup menu.
9) Display the enter key of the setup menu.
10) Pump laser switching key: used to control the working status of pump laser. “ON”
means the pump laser is open and “OFF” means the pump laser is closed. Ensure
the key is on “OFF” position before power on. After passing self-test, rotate the
key to “ON” position according to the displayed message.
www.questtel.com [email protected]
EDFA Optical Amplifier User Manual
L-RF-EDFA-14dBm
- 7 -
5.2 Rear Panel Description
Schematic diagram of the rear panel
1) Fan outlet
2) Optical signal input: Two common interface types are FC/APC and SC/APC.
3) Optical signal output: This interface is the optical signal output port of the device.
Two common interface types are FC/APC and SC/APC. Note: There is an
invisible laser beam from this port while working normal. So the port should not
be aligned to the human body or the naked eyes to avoid accidental injury.
4) RS232 interface: Used for configuring the network management parameters.
5) LAN interface: correspond to IEEE802.3 10Base-T, used for network
management.
6) AC power input of power supply 1.
7) Switch of power supply 1.
8) AC power input of power supply 2.
9) Switch of power supply 2.
10) Ground stud of the chassis: used for the connection of the device and ground
wire.
- 8 -
5.3 Displayed Parameter description
Name
display
discription
System Starting
QuestTel Display logo.
L-RF-EDFA-14dBm
Display model number.
xxxxxxx
Start countdown / lock status.
Suspend Page
In: xx.x out: xx.x
Unit: dBm
Display the input / output optical power
Main Page
1.Disp Parameters
Entry of parameter display menu
2.Set Parameters
Entry of parameter setting menu
3.Alarm Status
Entry of alarm information menu
1.Disp
Parameters
Input Power: xx.x dBm
Input power, accurate to 0.1 dBm
Output Power: xx.x dBm
Output power, accurate to 0.1 dBm
Output ATT: x.x dBm
Output power ATT, accurate to 0.1 dBm
Pump1 Bias: x mA
Bias current of pump1, accurate to 1mA
Pump1 Temper: xx.x°C
Temperature of pump1, accurate to 0.1°C
Pump1 Tec: x.xx A
Cooling current of pump1, accurate to 0.01 A
Pump2 Bias: x mA
Bias current of pump2, accurate to 1m A
Pump2 Temper: xx.x °C
Temperature of pump2, accurate to 0.1 °C
Pump2 Tec: x.xx A
Cooling current of pump2, accurate to 0.01 A
+5V Read: x.x V
+5V power supply voltage , accurate to 0.1 V
-5V Read: -x.x V
-5V power supply voltage , accurate to 0.1 V
System Temper: xx.x °C
Chassis temperature, accurate to 0.1 °C
Serial NO.: xxxxxxxx
Device serial number
IPAddr: xxx.xxx.xxx.xxx
IP address
Mask: xxx.xxx.xxx.xxx
Subnet mask
Gateway: xxx.xxx.xxx.xxx
Gateway
Mac: xxxxxxxxxxxx
Physical address
Trap Addr1:
xxx.xxx.xxx.xxx
trap1 address
Trap Addr2:
xxx.xxx.xxx.xxx
trap2 address
Firmware Ver: Vx.xx
Firmware Version number
- 9 -
2.Set
Parameters
Set Low Input Threshold
Set the input optical power low alarm
threshold, range -10.0～9.9dBm
Set High Input Threshold
Set the input optical power high alarm
threshold , range -10.0～10.0dBm
Set APC MODE
Set the constant optical power output
function, on or off
Set Output ATT
Set the output optical power attenuation,range
-4.0～0.5dBm
IPAddr
Set IP address
Mask
Set subnet mask
Gateway
Set gateway
Trap Addr1
Set trap1
Trap Addr2
Set trap2
Buzzer Switch
Set the switch of beeper
Restore Factory config
Restore the factory configuration，set content
as shown above
3.Alarm Status
Input Status: xxx
xxx= LOLOW:
Very low input optical power alarm
xxx= LOW:
Low input optical power alarm
xxx= HIGH:
High input optical power alarm
Xxx= HIHIGH:
Very high input optical power alarm
Output Status: xxx
xxx= LOLOW:
Very low output optical power alarm
xxx= LOW:
Low output optical power alarm
xxx= HIGH:
High output optical power alarm
Xxx= HIHIGH:
Very High output optical power alarm
Pump1 Bias: xxx
xxx= LOLOW:
Very low bias current of pump1 alarm
xxx= LOW:
Low bias current of pump1 alarm
xxx= HIGH:
High bias current of pump1 alarm
Xxx= HIHIGH:
Very high bias current of pump1 alarm
Table of contents
Other Questtel Amplifier manuals
