alea XGS-16×22 XG-PON and CATV WDM EDFA Amplifier User Manual

alea XGS-16×22 XG-PON and CATV WDM EDFA Amplifier

PRODUCTION DESCRIPTION

Introduction

XGSGPON series EYDFA optical amplifier combiner is the latest equipment of optical transmitting system for PON+CATV FTTH/FTTP. It realizes the combination function of OLT PON and CATV 1550nm after optical signal is amplified. In detail, there is one way CATV input plus 16 routes PON signal in and the 16 routes which have 1310/1490nm &1270/1577nm+1550nm combined output 1550nm with 27 to 45dBm total power. This equipment is well compatible to the OLT of HUAWEI, ZTE, FiberHome etc and no data lost which owns high cost performance.
Ordinary erbium doped fiber amplifier (EDFA) has advantages of low noise, high gain, wider bandwidth, high efficient pumping and stable operating, which is widely used in CATV system. However, along with the implement of fiber to the house (FTTH), system C/N will be worse significantly when EDFA uses as cascade amplification. Therefore, EDFA is required to produce high saturation output power and low distortion as shown as 13dBm to 23dBm (approximate. 27dBm limited) for EDFA saturated output power. Moreover, the gain fiber of EDFA is single mode and single packed fiber. Optic of pump is directly coupling into fiber but the diameter of fiber is very small therefore it requires single mode of pump optic. Semiconductor of single mode only supports hundreds milliwatt of output power and it is limited by the area of pump which makes high power pump optic cannot be coupling. It consequently causes serious output power of optical laser. In case, it develops double-cladding fiber internationally and solve the problem of listed weakness of single packed fiber which improves 1 to 2 level for output power. It then drives the development of high power optical amplifier. After several years’ research, our company overcome multiple technical difficulties, high power ytterbium- erbium co-doped double-cladding fiber amplifier was developed for CATV system to fit the requirement of FTTH and FTTB after conquer many technical difficulty.
This serious product adopts LUMENTUM，ⅡⅥ etc multimode high power pump laser as pump source and American OFS closed beam splitter as double-cladding synthesizer. Built-in stable optical power circuit and laser thermoelectricity freezer guarantees best performance and long life cycle operating. Microprocessor software monitors operating status of laser which shows on LCD. Once operating parameter of laser deviate from the range of set value, microprocessor will cut power supply of laser automatically and red light turn will turn on with alarm (prompting fault cause on LCD).Please refer to the following “Operation Instruction” for detailed report of equipment parameters.

Features

• High Quality: Adoption of multimode high power pump laser and power is optimized by software which maximizes lower NF of EDFA rival to normal EDFA. It makes system get superior CNR through power optimize balancing technique.
• Reliability: adoption of 19″2U standard case, built-in high performance external modular switching power supply, operating under AC90 to 255V, optional DC48V power supply (pre-order) hot-plugging supported, automatic temperature control case heat dissipation with dual power cold&hot backup.
• Intuitive: Microprocessor monitors operating status of pump laser which is the most valuable part of the equipment, operating parameters show on LCD display.
• Integrated network management: Optional type status monitoring transponder certainly satisfy national, SCTE, HMS, WEB standard, it can realize network management monitoring and remote version upgrading.
• Adjustable Output Power: The equipment is advanced designed which satisfies bigger range of adjustment from lower to -2dBm (special offer).
• High Power Output: Combined output power has maximum to 27~45dBm and multiple output configuration is available for users requirement.
• WDM Insertion: It is available to integrate FWDM module if user need which is convenient when combines XG(S)-PON.
• Connecting Safety Mode: To prevent the optical patch cord end face from being burnt when the optical output is connected, enable this mode to reduce the output power direct to 19dBm during connection. Once turn off this mode, it returns to the original set power.
• Built in optical path selector（customized: CATV optical signal has two way as A and B optical switch input,（OPT SWTTCH：auto（prefer）or manual（force） mode，auto mode uses path A in rule and switch to B as A is not satisfied followed path priority.

EQUIPMENT STRUCTURE

Series Front & Back & Side Panel 

CATV (1543 ～ 1563) input ,⑵PON signal input, ⑶LCD Display,⑷MENU Main Menu Button,⑸DOWN Button,⑹UP Button,⑺ENTER Confirm Button,⑻ Laser Lock Switch,⑼ 1310/1490nm &1270/1577nm+1550nm signal output port, ⑽Module Power Supply2(AC220V, Module Power Supply1(AC220V), ⑿NE Web Management Transponder ⒀FAN Group1,⒁FANGroup2).

Integrated PON+CATV WDM EDFA Block Diagram

MAIN TECHNICAL INDEX

Power Supply/Consumption

| ****

V/W

| AC165～265 or DC-48/20(hot-plugging single power)
Operating/Storage Temperature| ℃| -20～50/-30～70
Operating/Storage Humidity| %| 5～90
Case Size| mm| 88×482.6×387

Network Management Connector

| ****

/

| RJ45(following national network management standard, supports WEB)

XG(S)-PON

Optical Path with WDM

| PON Wavelength| mm| 1310/1490nm &1270/1577nm
PON Linker| /| SC/UPC
PON Insertion

Loss

| ****

dB

| ****

＜1.2

1550 Port

Insertion Loss

| ****

dB

| ****

＜0.7

Optical Switch

（customized）

| Insertion Loss| dB| ＜1
Harass| dB| ＜-60（isolation between A and B ）
Switch Time| ms| ＜10
Switched Power Threshold Range| ****

dBm

| ****

-5～10

Comment:

1. Optical Link Test provides link index by measuring optical transmitter FWT-1550EH-2X7 and receiver FWR-8610RW-XGS.

2. The main performance index above accords with GY/T 184-2002 CATV analog optical

amplifier technical requirement and measuring method.

OPERATION INSTRUCTION

The microprocessor software of this machine has many functions, such as laser working state monitoring, digital panel display, fault alarm, network management and so on. When querying or setting, press panel MENU key first, then press ENTER to confirm, press UP or DOAN to query or set different parameters and set items.
Setting function: enter the main menu by MENU, set safe connection mode, IP address, optical output power, optical switch A/B channel, input optical power threshold and fan control in
order,The security connection mode setting interface (Figure 2) on (Figure 3). The ON is turned on, the output power is adjusted to about 18.5 dBm, and the OFF is turned off, that is, the specification power output. Safe connection mode setting step: in “ON” press Enter confirm to” ON”, press UP or select “press Enter confirm, then press Main to exit. IP Address (IP address，Figure 4), OPT POWER( output optical power，Figure 5),Optical switch A/B channel automatic (figure 6) with manual setting (figure 7), optical switch threshold setting (figure 8), FAN Control (fan set Set， Figure 9 ), select item content by UP or Down, press Enter to confirm, and then press Main to exit previous menu. IP settings are : IP address, subnet mask, gateway, alarm server 1 and 2; output power settings are: output power 1(1-32 channels); fan settings are : open (long-term open), automatic (chassis temperature <35℃ off ,≥35℃ open). The third item under the main menu is system information. The information is as follows ( Figure 10): Product name, product model specifications, laser 1(1-32 channels) nominal output power, product serial number, control software version number and software version compilation date.SAFE MODE Thole Value

Query function： Press the MENU key to enter the parameter query, LCD display the main menu query, see figure 11: optical input A/B power ,1-32 channel optical amplifier output power real-time power value, laser switch, fan, power module 1 and 2 working state; press the ENTER confirmation to enter the sub-menu query, see figure 12: press the UP key or DOWN to enter the power module parameter query: power module 1 and 2±5 real-time voltage value; Front pump parameter query: input optical A/B power, front pump laser operating current, temperature, refrigeration or heating and front pump output power real-time parameters; Figure 13: rear pump parameter query: rear pump laser 1 and 2 real-time values of the operating current, temperature and output optical power of the (dual-pump type); figure 10: case temperature, fan switching state and system working time and pump laser working time query.
All of the above parameter queries are on-line detection values if a content over-limit setting value its display parameters will change red, indicating that this content error, while STATUS working on the panel positive / abnormal red light flashing. 

STATUS ALARM DESCRIPTION

• The machine is in the upper right position of the front panel with STATUS working status indication (LED). The green light indicates that the operation is normal, the red light indicates that the laser is not in operation, the red light flashes to indicate the alarm (there are related parameters that do not conform to the set value), and is accompanied by a “beep” sound, which is automatically turned off after one minute to reduce the noise of the machine room.
• The local status display, any item abnormal, will prompt alarm, STATUS light red light flashing, LCD display content is red text.
• In order to protect the safe operation of the laser, the laser power supply of this machine has a delay function. When the laser is turned on, it takes 10 seconds to delay the laser to enter the operation.

THE APPLICATION OF NETWORK REMOTE MANAGEMENT
This machine has network management function, set up IP、 gateway, subnet mask, server address according to the above operation steps, just connect the RJ45 interface signal to the local area network (Ethernet), then connect with the main server from any network port in the local area network, install the standard HFC network equipment management system application software on the main network management server (PC), when running the network management system can monitor the running status of the local machine in real time.

Introduction to network remote Access

Direct access method
Network remote direct access according to the following steps to set up the device IP(public network), gateway, subnet mask, server address. In equipment operation interface, by pressing the “MENU” button to switch to the MENU item “PARAMETER SET”, press “ENTER” button to ENTER submenu, press the “UP” or “DOWN” key to switch to the MENU item “IP Address” press “ENTER” button to ENTER, the cursor in the line, when flashing state press “UP” or “DOWN” button to choose parameters need to be modified, in a state of full words flashing cursor when press “UP” or “DOWN” key can modify the parameters of the current position, Press “ENTER” to switch the cursor state from underscore to full- word, or from full-word to underscore. Press MENU to exit the modified state and save the modified parameter to enable the new parameter. An example of a device IP(public network) is shown below.

After the completion of the need to responder network management interface using direct cable connected to the Ethernet device, and then from the PC to open the browser can access Ethernet, IP address bar input equipment, open the Login page (see on the right side of the figure), User Name and Password by default are “admin”, point “Login” button to enter net home page (see below); Click the relevant button in the left navigation bar to query various functional parameters.

Indirect access method
Taking the forwarding of H3C U200-S gateway as an example, the internal server forwarding function is set up on H3C U200-S device (professional operation is required), and the web information of the local device (IP: 192.168.2.99) is transferred to the public network (IP: 223.94.34.23.23:17380). After the completion of the need to put the machine “responder” NE network management interface with Ethernet cable and H3C U200 -s equipment Internet connection, and then from PC can access Ethernet (note that should not be within the same local area network (LAN), open a browser address bar input (http://223.94.34.23:17380), open the Login page (see on the right side of the figure), User Name and Password by default are “admin”, point “Login” button to enter net home page (see below). Click the relevant button in the left navigation bar to query various functional parameters.

Parameter or threshold setting: To set relevant parameters, power supply, fan, output power, etc., click Work Status Information, enter the setting page (see the figure below), and select or set relevant functions and parameters according to requirements.

OPTICAL CONNECTION ATTENTION

Before connection, clean all optical connectors carefully and read cleaning guide:

Optical Fiber Patch Cord

• Taking off dust cap of fiber connector and making sure optical connector is APC interface; 7.1.2 Using a specified dry wiping cloth without wool(5Kimwipes®) ; better to use specified microscope (100 and 200 times) to check the clean level of optical connector or imperfection statue;

• Attention to keep connector clear and clean of flange plate, specified compressed gas to clean the face of optical connector;

• It is better to clean dust smaller than 0.2 micron;

• Taking compressed gas pot away 6 inch to connector, aim at flange plate, pressing muzzle transiently several times;

• If you do not have specified compressed gas, 2.5 milometer swab is the substitution to clean connector or clean the other side of fiber jumper getting rid of installing flange plate;
  Caution:taking really carefully to deal with connector because it is easy to be broken.

• Using jumper to connect to EDFA output to optical power meter.

• Using optical power meter to check output power whether remains in normal range.

CAUTION

• The machine should have a good grounding, grounding resistance should be <4Ω. According to international standards, 220V use three-wire system into the line, middle line is the grounding wire.
• This machine uses imported high-performance, highly reliable switching power supply with constant voltage over-current protection, which already have imported fuse can be 165V ~ 260V voltage range of the city within the network work properly. The machine’s microprocessor output DC voltage of the monitors, if the fuse blew, indicating failures have occurred inside the machine. Therefore, the back panel of this machine has no 220V fuse.(The same as the imported equipment).
• In order to ensure the optical return loss ≥ 45dB, this machine optical connectors uses SC/APC ,SC/APC& SC/UPC（PON）. Connecting joints should be maintained clean. Plug should be used after repeated ethanol and cotton wool to wipe the optical connector.
• The input optical power of optical amplifier affect the system’s CNR, in practice, should be based on indicators system, reference to ” CNR degradation of the table ” design the input optical power of amplifier.
• Optical fiber amplifiers work in the 1550nm wavelength, the max output optical power ≤ 500mW. Access system in the machine, or optical output port unprotected pre-sets should not open so as to avoid burns due to the optical connector, but also should prevent the laser direct the human body, especially the eyes, causing harm to the people.

GUARANTEE AND MAINTENANCE MATTERS

• Each optical transmitter has the company serial number (bar code). To the date of sale can
  provide one-year.

• The machine’s microprocessor software with the laser working condition monitoring, digital panel displays, fault alarm, network management functions. Non-human factors that can not be damaged laser. If the machine flashes a red light appears (hint alarms), should be sent to the company warranty. Users shall not open the lid for maintenance, otherwise the warranty period,repairs and materials should be charged.

• The warranty expires, providing life-long maintenance and equipment upgrades.

• Due to power supply and man-made failures, resulting in damage to the device, are required to collect materials costs.

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