|Place of Origin:||2F, Building 15, Longbi Industrial Park, Dafa Road, BanTian, Longgang District, 518129, ShenZhen, P.R.China|
|Minimum Order Quantity:||1pc|
|Packaging Details:||Standard neutral or brand packing|
|Delivery Time:||2-3 workdays|
|Payment Terms:||T/T, Western Union|
|Place Of Origin:||Shenzhen,China||Brand Name:||Fiberroad|
|Model Number:||FR-OLPAMYP||Polarization Dependent Loss:||≤0.05 DB|
|The Switching Lifetime:||＞10 Million||Wavelength Dependent Loss:||≤0.1 DB|
|Dimension:||Standard 19' 1U 483*330*44mm||Return Loss:||≥55 DB|
|Monitoring Power Accuracy:||±0.25 DB|
OLP-Optical Line Protection
Optical line protection system is combined of OLP-Optical Line Protection and operation maintainance terminal,it can realize optical power monitoring,optical line auto-switching and network management etc. In optical communication network, OLP monitors optical power of optical fiber and standby optical fiber at real time.In case the current optical power of optical fiber is less than pre-set switching threshold value, then alarm is on and it would switch to standby optical fiber automatically to protect optical transmission system line.OLP can provide a protection scheme for all routes and main lines easily with low cost, can protect all networks which needs optical line switching, all these above can make a optical communication network with no-block,high reliability,safety and high anti-disaster strength.
Here is the diagram of optical line protection system:
|Reduce interrupt time of communication and improve maintenance efficiency with quickly recovering communication|
|Remarkably reduce damage to network caused by fiber failure|
|Increase network reliability and improve service quality|
|Harmless switch between working path and secondary path and convenient for line overhaul and cutover|
|Real-time monitoring power level of fiber|
|Support remote control, easy management and maintenance|
|Parameter||Optical line protection system1+1|
|Wor Working wavelength||1310±50nm and 1550±50nm|
|Monitoring Power range||＋23～-50 dBm|
|Monitoring power accuracy||±0.25 dB|
|Monitoring power resolution||±0.01 dB|
|Return loss||≥55 dB|
|Polarization Dependent Loss||≤0.05 dB|
|Wavelength Dependent Loss||≤0.1 dB|
|Insertion loss||TX<4,RX<1.2 dB|
|Switching time||<15 ms|
|Durability(Life)||>10 million times|
|Power supply||DC(36-72)V and AC(85-264)V/50~60Hz,dual power supply|
|Power-down Condition||hold in working path or switch to backup path|
|Dimension||Standard 19' 1U 483*330*44mm|
1U Device Panel
(1)LCD screen: Display work mode,current channel,power value,wavelength and other related info.
(2)RJ45 Ethernet interface,RS-232 RS:device communication interface for monitoring data;
< RJ45 Ethernet interface>
To connect device and computer through switch, it should use straight-through cable (Wire connecting for both ends is the same as: 1- orange white,2-orange,3- green white,4-blue,5- blue white,6- green,7- Brown white,8-brown);to connect device and computer directly, it should use cross-over cable(One end:1-orange white, 2-orange, 3-green white, 4-blue, 5-blue white, 6-green, 7-brown white, 8-brown; the other end: 1-green white, 2-green, 3-orange white, 4-blue, 5-blue white, 6-orange, 7-brown white, 8-brown);
To connect device and computer, it should use RS crossover cable DB9 of “hole” shape for both ends, that is to say, #2,#3 pin at both ends connect across status,#5 at both ends docking(or connecting), other pins no need connecting.
Power1,Power2: indicate current power status, “light on” means “power on”, “light off” means “power off”.
Run:light to show device running status, normally it flashes 1 time/second.
Auto:indicate current work mode of device, “light on” means “device is under auto mode”,
“light off” means “device is under manual mode”.
Pri,Sec:indicate current channel of device, Pri light on means device is working under primary route, Sec light on means device is working under standby channel.
R1,R2: indicate current receiving status for device primary & secondary(or standby) route, green light means receiving normally(current receiving power is higher than current channel switching power value), red light means non-normal receiving(current receiving power is lower than current channel switching power value)
Tx:indicate current connecting status of transmitting interface between device and transmission device, green light means received light from transmission device, red light means not-received light from transmission device.
Ls:indicate current work status of inside-mounted light source, green light means running well, no light means this device has no inside-mounted light source(or inside-mounted laser not workable) ,green light flashes once per 5 seconds means current channel receiving power is less than threshold switching. LS light would be off for 3 seconds for every switching. (Inside mounted source is available for device 1:1 only, which is used for monitoring standby route.)
(4)Enter:Push this button to enter menu(Hold enter/exit menu, press “Enter” to confirm operation and save the result.)
▲▼:Push these 2 buttons to move menu.
Esc:exit from menu.
(5)Optical interface(or connector) explanation: there are 6 optical interfaces on device panel, including Rx(connect with receiving port of transmission device) ,R1(connect with primary receiving port of ODF.) ,R2(connect with standby receiving port of ODF) and Tx(connect with transmitting port of transmission device) ,T1 (connect with primary transmitting port of ODF) ,T2(connect with standby transmitting port of ODF)
(6)DC power interface: + positive pole,-negative pole,GND ground;(can connect another two sets of external DC power)
(7)AC power interface
The device has two work modes: manual mode & auto mode, manual mode is used for device debugging or enforced switching.
Note: Device can switch from Manual mode to Auto mode automatically, the return time set by manufacturer is 30 minutes. It can be reset through program control interface; the time available for option is 0~999 minutes. 0 minute means from Manual mode to Auto mode must be operated by manual.
After operation completed, must set device under auto mode, otherwise, it might possibly lead to protection-fail.
R1 means the primary work channel(Pri),R2 means standby/secondary work channel(Sec)
While under auto mode status, device would select work channel automatically according to line status.
Both routes available to use: work in relevant channel of well route(If work in standby channel, device would return to primary channel in 10 minutes, the premise is: device has started “switching back” function.
While changing optical channel through panel or program interface, device would switch to Manu mode.
When device cut over to optical network, to set OLP device under Manual mode in one side, then select relevant work channel.
The device has 2 wavelength for option: 1310nm,1550nm,customer might select relevant wavelength according to actual requirement.
The initial threshold-switching power value of device is -30dBm, customer can reset according to device type and active loss status.
Principle: Threshold-switching power value should be a little higher than min. receiving power value of optical transmission device, tolerance value is 0.5~1dB. (Min. receiving power value is subject to the one which can guarantee the whole system in normal transmission.)
Refer to 1:1 protection, as 1:1 OLP monitors standby path by inside-mounted light source, it should consider whether the inside-mounted light power value received (from the device on the other side) is within the threshold-switching power value range or not.
Supposed optical transmission device transmission power is +15dBm,inside-mounted light source of OLP device is -2dBm, primary line loss(including OLP,jumping fiber,connector loss) is 25dB,the standby line loss(including OLP,jumping fiber,connector loss) is 27dB,the min. receiving power value of optic transmission device is -28dBm;
Receiving signal power of primary line on this end is -10dBm, monitoring optical power received by standby line is -29dBm；
Monitoring optical power of primary line on this end is -27dBm, signal power received by standby line is -12dBm;
If set threshold switching power of primary & standby route as -27dBm, system is working at primary route, in this case, system would not switch to standby route while primary route is broken, because monitoring optical power received by standby route is less than threshold switching power, system takes the standby route is under fault status.
In this situation, the way to set threshold switching power is: -45dBm<threshold switching power<(standby route monitoring optical power- 6dBm)
“Switching back” definition: Under auto mode, device switch from standby route to primary route status. It can set as “auto switching back” or “non-auto switching back”. Under “non-auto switching back” status, even if meet switching back requirements (Primary & standby route are work well), auto switching is not available from standby to primary route.
When device is under “auto switching back”optical route is under standby status,and working under auto mode, device would do real time optical detection for primary & standby route. If optical power detected for primary & standby route in M time period (0-999 minutes) is normal, device would switch back automatically to primary route status. M=0 minute means non-switching back.
Switching back delay can be set through program control interface. Switching back delay pre-set by manufacturer is 10 minutes.