Ascent AT5200 FTTX EDFA User manual

ACT AT5200
FTTX Multiport
EDFA
Quick Reference
Guide
Revision H

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ACT AT5200 Multiport Erbium-Doped Fiber Amplifier
Quick Reference Guide
ACT Document Number: AT5200 MULTIPORTEDFA-QRG
Quick Reference Guide Revision H
Copyright © 2017 Ascent Communication Technology Limited.
All rights reserved. Reproduction in any manner whatsoever without the express written permission of Ascent
Communication Technology is strictly forbidden.
This document is produced to assist professional and properly trained personnel with installation and maintenance
issues for the product. The capabilities, system requirements and/or compatibility with third-party products
described herein are subject to change without notice.
For more information, contact ACT: [e-mail]
Revision History
Revision
Date
Reason for Change
A
02/01/2012
Initial release
B
06/01/2012
Update front panel design
C
06/01/2014
Update EMS and GUI
D
04/20/2015
Format control
E
08/15/2016
Minor updates
F
02/14/2017
Updated specifications
G
02/15/2017
Updated GUI section
H
05/13/2019
Updated section 5.4

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Table of Contents
1 Precautions ............................................................................................................................ 4
2 Introduction ........................................................................................................................... 5
2.1 Overview ························································································································ 5
2.2 Features·························································································································· 5
2.3 Specifications ················································································································· 7
2.4 Models and Options······································································································· 8
3 Installation.............................................................................................................................. 9
3.1 Equipment Inventory ····································································································· 9
3.2 Packaging and Transportation························································································ 9
3.3 Power and Cooling Requirements·················································································· 9
3.4 Module Installation and Adjustment ··········································································· 10
3.5 Front Panel Layout (Layout May Vary ) ········································································ 11
3.6 Rear Panel Layouts······································································································· 12
4 Technical Description ........................................................................................................... 13
4.1 Overview ······················································································································ 13
4.2 Optical Gain Block········································································································ 13
4.3 Alarm System ··············································································································· 14
5 Management – Operation.................................................................................................... 15
5.1 EDFA Program Structure ······························································································ 15
5.2 LCD menu Sequence and operation············································································· 15
5.3 Port and Cable Assignments ························································································ 17
5.4 The WEB Management Interface (Web GUI)······························································· 21
6 Troubleshooting ................................................................................................................... 28
6.1 Fiber Optic Maintenance ····························································································· 28
6.2 Troubleshooting Conditions························································································· 28

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WARNING!
Exposure to class 1M laser radiation is possible. Access should be restricted to
trained personnel only. Do not view exposed fiber or connector ends when
handling optical equipment.
•Ensure adequate cooling and ventilation as specified.
•The installation and operation manual should be read and understood before units are put into use.
•Always replace protective caps on optical connectors when not in use.
•The typical connectors fitted are SC/APC 8°. Note: 8° angle polished connectors must be used.
Cleaning
Use only a damp cloth for cleaning the front panel. Use a soft dry cloth to clean the top of the
unit.
Do not use spray cleaner of any kind.
Overloading
Overloading wall outlets and extension cords can result in a risk of fire or electric shock.
Use approved electrical cords.
Damage requiring service
Unplug unit and refer servicing only to Ascent Communication Technology qualified service
personnel.
Servicing
Do not attempt to service this unit yourself. Refer all servicing only to Ascent Communication
Technology qualified service personnel.

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AT5200 2RU Erbium-Doped Fiber Amplifier (EDFA) offers a flexible and scalable optical
amplification for high quality video transmission in CATV networks. Together with ACT AT5000
series 1550nm transmitter, the AT5200 EDFA provides an ideal video overlay solution in high
density FTTX networks to bring the video services to business and home premises.
AT5200 EDFA series simplifies the application by offering low noise, high output power, and
intuitive front panel LCD display to make operator’s life easier. The optical amplifier is
packaged in a self-contained 19” sub-rack of 1 or 2 RU with redundant universal mains power
supply and SNMP management.
The optical output power level can be ordered from 13 dBm to 26dBm with variable output
features available. Multiport EDFAs accommodates up to 16 output ports in 1RU setting and
64 output ports in 2RU setting. Combined with our AT5000 1550nm direct or externally
modulated laser transmitter, MSOs can quickly deploy and activate advanced multi-media
services in long distance video transmission and high subscriber count FTTH networks.
•Low noise, high performance with JDSU & IPG pump laser
•FTTP high power multi-ports optical amplifier with gain spectrum band within 1540 to 1563nm
•Built-in WDM to connect PON OLT Uplink and Combined PON + CATV output
•Up to 64 uplink optical ports (OLT 1310/1490nm)
•Up to 64 combined output ports (1550nm CATV + 1310/1490nm data stream)
•Suitable for analog and digital CATV systems, DOCSIS, FTTH and more applications
•Suitable for 1550 nm DWDM applications for multiple wavelengths on single fibre
•Nominal output powers from 13dBm to 26dBm per port
•Adjustable output power
•Laser cooling: Thermoelectric Cooler (TEC)
•Extend analog and digital CATV to suit long distance feeders or larger FTTH distribution systems
•Local or remote monitoring and configuration
•SNMP/HTTP monitoring, management and control

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Application Diagram

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AT5200 EDFA Erbium-Doped Fiber Amplifier - 19” 1 or 2RU
Operating CATV Wavelength, nm
1540 to 1563
OLT Pass Wavelength, nm
1310/1490 (signal pass-through) (WDM Optional)
CATV Pass Wavelength Loss, dB
0.8
OLT Pass Wavelength Loss, dB
0.8
Input Power, dBm
-10 to 10, 3dBm typical, -6dBm to 8dBm (constant output)
Maximum Output Power, dBm
19dBm per port (32/64 PON ports)
Maximum Output Ports
8, 32, 64 (SC/APC, LC/APC, LC/UPC)
Output Power Stability, dB
±0.5
Port Isolation (CATV & OLT), dB
40
Noise Figure, dB (PIN=0dBm)
<5
Build-in WDM for PON
PON signal pass-through when EDFA is off
Insertion Loss
Transmission band ≤ 0.8dB, Reflection band ≤ 0.6dB
Polarization Dependence Loss, dB
0.1
Polarization Dependence Gain, dB
0.4
Polarization Mode Dispersion, ps
0.1
Input/Output Isolation, dB
40
Echo Loss, Db
55
Optical Switch (Optional)
2 optical inputs, Switch time ≤ 0.5s, IL ≤ 1dB,
User-defined input threshold
Automatic switching when input is low and back when recover, if
both below threshold, higher input is selected
SNMP
RJ45 (MIB provided), monitoring input port, output port power,
power supply, bias current, laser temperature
Set alarm threshold
Serial Interface
RS232
Power Supply
90 to 265 VAC or 30 to 72 VDC
Power Consumption, W
150 Max
Operating Temp, °C
-5 to 65
Storage Temp, °C
-40 to 80
Operating Relative Humidity, %
-5 to 95
Dimensions (W x D x H)
1RU: 483x400x44 mm, 19x15.8x1.75 inch
2RU: 483x368x88 mm, 19x14.5x3.5 inch
Weight, kg
10 kg
Ship Weight
10.5 kg

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* The maximum output power per port is 26dBm. Output power is measured after WDM. Contact ACT Sales Representative for more
information.

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On receiving your new EDFA, you should carefully unpack and examine the contents for loss or damage that may
have occurred during shipping. Refer to warranty registration if loss or damage has occurred. The EDFA pack will
consist of the following:
Qty
Description
1
EDFA, Erbium Doped Fiber Amplifier
1
Product user manual (includes individual test sheet) (.pdf available)
1
Key for switching laser ON / OFF
1
Power supply cord
Keep all packing boxes and packaging of the EDFA for future transport.
Use only the original packaging of the EDFA when transporting. This packaging has been specifically designed to
protect the equipment.
The EDFA requires an input of 90 to 264 Vac or 30 to 72 VDC. The mains input socket on the unit is IEC
configuration which needs to be properly grounded. Over-load and over-voltage protection is included in the unit,
which may cause it to shutdown in extreme circumstances. If this occurs, remove the fault condition and the
system will recover automatically.
The unit should be located in an environment not exceeding a temperature range from 0 to 50 ºC. The internal
temperature should never reach 70 ºC. If the temperature exceeds the above limits, the unit should be relocated
in the equipment rack where the ambient temperature will be less than 50 ºC.
Horizontal, fan-forced airflow permits the mounting of multiple laser transmitters without the need for a 2 RU rack
space clearance between other devices. However to maximize the useful life of high power multiport EDFA, it is
highly recommended to keep space of 4.5cm in between chassis for optimized cooling. Ensure adequate space
behind the unit for ventilation as air flow is through the back of the unit.
The unit should have good grounding, grounding resistance<4Ω. According to the international standard, 220V
plug in adopts tri-wire rule, the middle wire is the grounding wire. Before connecting circuit, please use proper
electric wire (#20AWG or bigger) to connect the grounding screw on the bottom and the grounding frame. When
use DC input power supply, the equipment chassis must be grounded. The DC power supply of the equipment
must be the SELV supply stipulated as CAN/CSA C22.2 No.950-95 standard.

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The following steps explain how the EDFA is to be installed. Please read them carefully:
Unpack the optical amplifier and inspect the unit as stated in Section 3.1.
Locate the optical amplifier in a 19” cabinet, ensuring adequate ventilation and space for
accessing the rear ports and front-panel keypad.
Prior to connecting any fiber patch leads to optical transmission equipment, always ensure
that the ends of the fiber optic connectors are clean and free of contaminants.
WARNING!
Do not view exposed fiber or connector ends when handling optical equipment. Exposure
to invisible laser radiation may cause permanent eye damage.
Connect the optical output ports to the system.
Always place protective dust caps on all optical ports when not in use.
Connect the optical input signal to the input port of the EDFA.
Ensure the input optical power is within the range of -10 to +10dBm with the typical value
at +3dBm.
Before connecting AC/DC power to the unit, make sure that the LASER ON/OFF key is
switched OFF (front panel).
Use the supplied power cord to apply mains power to the transmitter.
Switch the power ON (switch located on the front panel).
Switch on the laser using the key switch.
Front panel shows “KEY ON…”. Laser status lamp turns green from red, and the machine
enters self-checking. After checking, it enters working status and display “Descriptor”.
If the laser is not on, you will have to activate the laser and check that the output power is as
specified in the EDFA Certificate of Performance (COP). To activate the laser, see Section 5.3.
See Section 5 for instructions on how to view the status information about the EDFA.

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Item
Description
1
Status LED
LASER INPUT LED
OPT OUTPUT LED
POWER LED
GREEN –EDFA works normal. RED –No INPUT or EDFA ERROR (refer to LCD
screen for more information )
GREEN –Optical Input Normal; No Light –No Optical Input
GREEN –Optical Output Normal; No Light –No Optical Output
GREEN –Power is ON. RED –Power is OFF.
2
LCD
LCD to display user interface.
3
KEYPAD
Keypad for navigating menus and making selections with the user interface.
ENT Button: Start the menu by pushing ENT first. (refer to 5.2)
4
5
6
LASER ON/OFF
OPT. IN (Dual OPT
IN optional)
OPT. OUT
Key switch for laser activation.
Optical input port, 8angle polished SC/APC shown.
CATV 1 is primary input and CATV 2 is backup secondary input
Optical output port, 8angle polished SC/APC shown.
Top quadplex LC/APC 64 ports are the combined output port 1:64
7
1 RU MOUNTING
Mounting holes for installation in rack.
8
RJ45 Web GUI
RS232 (DB9)
Web GUI interface ( default IP: 192.168.1.50)
RS232 Console port (DB9)
9
OLT INPUT PORT
Bottom quadplex LC/APC connectors are OLT input ports 1 to 64
10
RF Port (Optional)
RF sample signal output 70dBuV

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Item
Description
Operation
1
FAN
Fan vent.
2
IEC Main Input Power 1
Mains input power, 90 to 265 Vac, 50 / 60 Hz, fused IEC input,
includes spare fuse. Or 30 to 72 VDC input. Inputs 1 to 2 for power
redundancy.
IEC Main Input Power 2
(Optional, Special order)
Mains input power, 90 to 265 Vac, 50 / 60 Hz, fused IEC input,
includes spare fuse. Or 30 to 72 VDC input. Inputs 1 to 2 for power
redundancy.
3
RS232
RS232 Serial Port
4
5VDC Output (Optional)
Reserved 5VDC output port

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The EDFA comprises an Optical Gain Block, Control Board, and serial interface.
The Optical Gain Block consists of an Erbium Doped Fiber in conjunction with single or dual
980 nm pump lasers for high optical power efficiency.
The Control Board monitors and controls the Optical Gain Block and feeds the front-panel LED
indicators as shown in Section 3.5.
The Optical Gain Block has an input optical signal range of -10 to +10dBm for which the
output will be stable at its nominated optical power. Although the pump lasers will operate
with input optical signals down to -10dBm, optimum specifications will be met above 0dBm.
The optical gain will be determined by the required optical output power minus the optical
input power. The higher the gain the higher the noise figure (typically <= 5.0 dB).
The Optical Gain Block is driven by the Control Board which also performs the shutdown
function of the lasers. The optical connectors available are SC/APC, E2000/APC and FC/APC.

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The EDFA alarm system is designed to generate only urgent alarms. This is due to the
importance of the EDFA, as this module will usually drive a large portion of the optical
distribution network. Working status indication (LED) is next to the power switch in the front
panel. When it is green, the device is working properly; when it is red, the laser does not
work; when it is red flashing, there is an alarm. The urgent alarm communicates to the control
module and makes the LCD flash when displaying STATUS.
1. With 220V power supply, if the unit is good, the digital panel will display “READY: KEY OFF” and
there is Red light.
2. Turn on with the switch key, the digital panel will display “KEY ON”. After a few seconds, the laser
is turned on automatically and the indication light turns into Green from Red.
3. Pressing ENT, ▲\▼bottom to display parameters.
4. If any fault listed above occurred, there will be an alarm (Red flashing), Microprocessor will shut
off the laser pump automatically, and digital panel will show the fault message.
5. In order to protect the laser, the power supply of the laser has time-delay function. After turning
on with the key, the laser will start to work after 10 seconds.
When pump laser is on warning status, the status LED will turn red and the brief note of
status will be displayed on the screen. The warning will not stop the EDFA from running, it
only shows the relative parameter exceeding to normal scope slightly. If the warning is
stopped, it shows that the relative parameter is returned into permitted scope. The screen &
LBD will return to their normal status and there is no need for user to interfere.
Work Status
Status Display
LED
Explanation
Present Laser
Deflection is Low
Key Off
Red
The EDFA isn’t working. It’s shut down.
Present Case Temp
-
Red
Warning when the temp ≥60 °C.
Input
Input Low
Red
Optical input power is low.
Output
Output Low
Red
Optical output power is low.

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The EDFA’s software is fully automatic and constantly monitors key parameters. These
parameters are stored in the unit’s EEPROM and/or microcontroller. Some may be changed
via external communications.
The unit is designed for local and remote monitoring and control.
Factory Defaults / EEPROM Settings
The software uses EEPROM for memory back up of the lower and upper alarm limits for
analogue parameters and for control variables as set by the user.
These settings will be saved into EEPROM so that the user will not need to reset these in case
of a power failure.
The factory default setting of the unit is to have an IP address of 192.168.1.50.
The factory default setting is to have the laser switched off for all models.
LCD menu Sequence
Press \ button, the following menu will be displayed in sequence.
A. Model
Read-only menu, tells the type of this equipment
B. S/N
Read-only menu, tells the serial number of this equipment
C. InputA
Read-only menu, tells the input optical power A of optical switch
D. InputB
Read-only menu, tells the input optical power B of optical switch
E. Input
Read-only menu, tells the input optical power of EDFA
F. OP Route Select
Adjustable list, display the optical route selecting
G. Op Switch Point
Adjustable list, display the optical switch point setting
H. Total Output
Read-only menu, tells the output optical power of EDFA in dBm.

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I. Each Output
Read-only menu, tells the each output of EDFA in dBm.
J. PA Current
Read-only menu, tells the pre pump current of EDFA
K. PA Temp
Read-only menu, tells the pre pump temperature of EDFA
L. BA Current
Read-only menu, display the multi-mode amplify current of EDFA
M. Unit Temp
Read-only menu, tells the case temperature
N. Power1
Read-only menu, tells the status of power1
O. Power2
Read-only menu, tells the status of power2
P. IP
Adjustable list, display the IP address
Q. SUB
Adjustable list, display the address of net mask
R. GW
Adjustable list, display the gateway address
S. TR1
Adjustable list, display the TRAP1 address
T. TR2
Adjustable list, display the TRAP2 address
U. LCD Contrast Level
Adjustable list, display the LCD contrast level adjustment
Assistant manual
1. OP Route Select (Set the optical route)
Select the menu that need modification, pressbutton enter into sub menu, then
pressbutton enter into menu modify status, press\button to select the optical route
mode, and at last pressbutton to save, andpress button back to main menu.
2. Op Switch Point (Set the switching point of optical switch)
Select the menu that need modification, press button enter into sub menu, then press
button enter into menu modify status, press▲/▼button to increase and decrease the
value, at last press button to save, and pressbutton back to main menu.

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3. Set the IP address
Select the menu that need modification, press button enter into sub menu, then press
button enter into menu modify status, press▲/▼button to increase/decrease the value,
pressbutton to shift the value, at last bit press button to save, and pressbutton back to
main menu.
4. LCD Contrast Level (Set the LCD contrast level)
Select the menu that need modification, press button enter into sub menu, then press
button enter into menu modify status, press▲/▼button to set LCD contrast level, press
button to save, and pressbutton back to main menu.
AT-52-EDFA series provide the following management ports:
RS232 port: be suitable for examining AT-52-EDFA parameters and some system configuration
by PC machine RS232 port.
SNMP: Simple network management protocol
Before connection AT-52-EDFA series of the port, please read the following instructions and
port connectivity requirements.
The AT-52-EDFA series management port connector type is RJ-45.
Figure. RJ–45 Connector Plug and Socket
The Management port (RJ-45) can be connected to any device that uses a standard network
interface (e.g., a workstation, server, bridge or router). RJ-45 MDI can be connected with
similar network equipment (such as other AT-52-EDFA or network Hub). Use unshielded
twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections: 100-ohm
Category 3, 4 or 5 cable for 10 Mbps connections or 100- ohm Category 5 cable for 100 Mbps
connections. Beside, please ensure that the cable length does not exceed 100 meters.
1
8

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Pin Assignment
When network management reticle (RJ-45 connector in each side) connects NMS PC and AT-
52-EDFA series directly, it should use straight reticle. See Figure below:
RJ-45 connector straight through connecting
PIN
Workstation port
MDI
1
Input receive data+
Output transmit data+
2
Input receive data-
Output transmit data-
3
Output transmit data+
Input receive data+
6
Output transmit data-
Input receive data-
4, 5, 7, 8
Nonuse
Nonuse
RJ-45 Pin assignment
Straight
Cross
(AT-52-EDFA)
(Adapter)
(AT-52-EDFA)
(HUB/ AT-52-EDFA)
1 IRD+
1 OTD+
1 IRD+
1 IRD+
2 IRD-
2 OTD-
2 IRD-
2 IRD-
3 OTD+
3 IRD+
3 OTD+
3 OTD+
6 OTD-
6 IRD-
6 OTD-
6 OTD-
Straight and cross cable connecting
Port Connection
AT-52-EDFA series can auto detects the Ethernet cable type (Straight-though or Crossover), so
either type can be used. An Ethernet twisted pair cable should be connected between the RJ-
45 connector (MDI-X) of the AT-52-EDFA series and any device with a standard network
interface (such as a work station or server), or to a network interconnection device (such as a
bridge or router).
1) Ensure that the device to be connected has a 10BASE-T or 100BASE-TX network interface
card (NIC).

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2) Prepare a twisted pair Ethernet cable with RJ-45 plugs on each end. Use Cat 3, 4 or 5 cable
for standard 10Mbps Ethernet connections, or Cat 5 cable for 100Mbps Fast Ethernet
connections.
3) Plug one end of the cable into the PC's NIC and plug the other end into any RJ-45 port of
the AT-52-EDFA series. All the AT-52-EDFA RJ-45 port supports both 10Mbps and 100Mbps
Ethernet connections. Ensure that the plug's locking tab clicks into proper position to make
good access.
Caution: Do not plug a phone jack connector into the RJ-45 port. This may damage the EDFA.
Instead, use only twisted-pair cables with RJ-45 connectors that conform to FCC standards.
Note:
1) Connect other compatible AT-52-EDFA series or network hub, adopt direct or across cable
to connect MDI port in other device.
2) Ensure that the twisted pair cable length does not exceed 100 meters.
3) Cat 5 cable is recommended for all network connections to avoid confusion or
inconvenience, when upgrading to Fast Ethernet devices in the future.
4) Cascade length provision: IEEE 802.3 standard prescribes that through twisted pair at most
4 hub (such as repeaters) can be cascade, and IEEE 802.3u standard has more strict order for
high-speed Ethernet. So, when cascade device except for this AT-52-EDFA series, please
following the above connection regulation. But please pay attention because AT-52-EDFA
series divide the connected path into unattached port, don’t reckon in the AT-52-EDFA series
or connected cable related device in cascade length.
Connection Management (Out-Band)
Remote management can be performed through the dedicated LAN port (10/100BASE-TX
port) on the front of the AT-52-EDFA or any 10/100BASE port of AT-52-EDFA.
Before the Management port be accessed through LAN port, please configure the IP address
and subnet mask by serial port according to network configuration requirement.
Port Description
Figure DB9 interface
DB9 interface is a standard connector used in RS232 in series communication connects. OLT
adopt 9 pin standard connector which is the same as the connector of PC Com interface.
1
8

AT5200 FTTX Multiport EDFA
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Pin Assignment
DB9/RS232 pin assignment
Pin
Distribution
2
RXD: accepting of data
3
TXD: transmitter data
5
SG: signal
Pin information
Port connection
AT-52-EDFA series is equipped with a cable to connect AT-52-EDFA series serial port. This cable
has a DB9 connector in AT-52-EDFA series and PC side.
According to the following steps to connect cables:
1) Through RS232 (DB9) cable, connect a super terminal program PC to RS232 port in AT-52-
EDFA series back panel. For example, connect one COM port in PC (com 1 to 4) and one RS232
port of AT-52-EDFA series.
2) Setup terminal analogue type VT100, distribute a COM (com 1 to 4) to connect with AT-52-
EDFA series RS232, then setup communication mode as follows:
1. Data bit: 8
2. Stop bit: 1
3. Parity check: No
4. Baud: 9600 bps (applies to initial configuration)
5. Flow control: No