Have You Ever Meet Of The Octl Port Application In The Huawei Optix OSN 1800
Join 1000's of Authors at StreetArticles Today!

Summary

An OCTL port on a TNF1SCC board can only be connected to an OCTL port on a CTL board of an OADM frame through a straight-through network cable. Due to the fact that the OCTL port appears similar to a common network port, the OCTL port is likely to be misconnected and short-circuited, causing a blown fuse on the TNF1SCC board and a power failure on the OADM frame.

[Problem Description]

Trigger conditions:

The normal application scenario is: An OCTL port on a TNF1SCC board is connected to an OCTL port on a CTL board of an OADM frame through a straight-through network cable.

Any other application scenario is possible to trigger this problem. For example:

A. An OCTL port on a TNF1SCC board is connected to an OCTL port on a CTL board through a non-straight-through network cable.

B. An OCTL port on a TNF1SCC board is connected to a non-OCTL port (for example, an SW port).

Symptom:

1. When a TNF1SCC board is connected to an OADM frame, the OADM frame is not powered on and its RUN indicator is off.

2. The OADM frame cannot be managed.

The following is a schematic connection diagram of Huawei OSN product like OptiX OSN 1800 OADM frame and an OptiX OSN 1800 I chassis.

Identification method:

1. The TNF1SCC board is running normally but the OADM frame is not powered on, its RUN indicator is off, and it cannot be managed.

2. When the OADM frame is connected to an OCTL port of another TNF1SCC board, the OADM frame is powered on normally with an RUN indicator turned on and can be managed. It can be determined that the OCTL port on the previous TNF1SCC board is faulty with a blown fuse.

[Root Cause]

An OCTL port on a TNF1SCC board, which supplies power to the OADM frame, appears similar to a common network port. If the OCTL port is connected to a network port, the OCTL port will be short-circuited, leading to a blown fuse in the protection circuit of the OCTL port on the TNF1SCC board. This fault, however, does not affect the operation of the TNF1SCC board.

The following is a schematic power supply diagram of the OCTL port on the TNF1SCC board.

Functions of the fuse:

The fuse on the TNF1SCC board is used for protecting power outputs to the OADM frame and implements hot swap protection together with the transient voltage suppressor (TVS), ferrite bead and capacitor included in the protection circuit shown in the blue box. The operating principle of the fuse is as follows:

A. When the connected OADM frame is working normally, the fuse current is about 0.2 A, far lower than its rated current 2 A. The fuse is working normally and serves as a power line.

B. When the connected OADM frame is faulty, for example, is short-circuited, the fuse has a transient current far higher than the rated current 2 A. As a result, the fuse blows and the protection circuit is opened to isolate the power supplies and components inside the TNF1SCC board. The opened protection circuit can be restored only by replacing the TNF1SCC board.

[Impact and Risk]

In site deployment or expansion, the OADM frame connected to a TNF1SCC board cannot be powered on or managed.

[Measures and Solutions]

Recovery measures:

Replace the TNF1SCC board.

Workarounds:

None.

Solutions:

Replace the TNF1SCC board.

Material handling after replacement:

The TNF1SCC board is returned for repair.For more transmission board you can visit Huawei transmission network.


Street Talk

No comments present
You May Also Like
Brother Printer Technical Support – A Few Clicks Can Resolve Your Any Complicated Issue
Maintaining its head office in Nagoya, Japan, Brother is a big name in providing an exclusive variety of electronic devices and products that include Printers, Machine Tools, Fax Machines, Typewriters and various other computed pertaining peripherals. This printer machine comes in different models Multi-function, Wireless Brother Printers, label and Laser/LED…
By: UK Tech Number in  Computers and Technology  >  Hardware   Jun 06, 2016  
0
  Likes: 1

Portable External Hard Drive
The most useful external hard drives in the market are the portable hard drives. They are easy to carry and come in handy. Even though they are small in size, their storage capacity is quite big. Physical Size Portable external hard drives and laptop hard drives are the same in…
By: Procurepod in  Computers and Technology  >  Hardware   May 28, 2016  
0
  Likes: 1

Logitech H600 Wireless Headphones Reviews: Wireless Free Life
The world's most famous computer peripherals suppliers Logitech is also famous in PC multimedia entertainment design manufacturers. With the development of multimedia entertainment, Logitech followed the market pace, attaches great importance to the game, multimedia and network audio-visual AIDS develops. In order to adapt to the current consumption trend, greatly…
By: AlikDiana in  Computers and Technology  >  Hardware   May 28, 2016  
0
  Likes: 1

Cool Ideas To Purchase Gadgets For Family Of Friends - Get Great Deals With Amazon, Deal Extreme, Ebay And Gizzmo Heaven
Cool Ideas To Purchase Gadgets For Family of Friends- Get Great Deals With Amazon, Deal Extreme, eBay and Gizzmo Heaven Nothing is more appealing to tech lovers than a tech oriented gadget and with eBay voucher codes, Deal Etreme promotional codes, Gizzmo Heaven discount vouchers and Amazon coupon codes you…
By: patsy in  Computers and Technology  >  Hardware   May 23, 2016  
0
  Likes: 1

Choosing The Right Gun Holster
Have you just purchased a gun or rifle and excited to start out with concealed carry? Great! Now that you are done with the permits and buying a gun, there are a few other things left to figure out. For instance, how do you plan to carry your gun? For…
By: Shawn Deny in  Computers and Technology  >  Hardware   May 19, 2016  
0
  Likes: 1

Buy Cheap Laptops In Laptop Outlet’s Spring Savings
Laptop Outlet’s Spring Savings promotion is the perfect opportunity to buy Cheap Laptops from a range of leading manufactures such as Toshiba, Lenovo, ASUS and HP. Here are the top picks of affordable laptops from the Spring Savings: 1) Lenovo Ideapad 100 15.6" Windows 10 Laptop Intel Celeron N2840 4GB…
By: Emma Watson3 in  Computers and Technology  >  Hardware   May 18, 2016  
0
  Likes: 0

Computer/device Screen Repair
Many computers, tablets and phones make use of old and modern screens. These devices, when in need of repair, factor from the different screen types, screen replacement and repair prices. Firstly, it is important to acknowledge that there are different types of screens that are in use in the market.…
By: Khan in  Computers and Technology  >  Hardware   May 18, 2016  
0
  Likes: 0

Hitachi Data Systems (hds) Upgrades With NAS Functionality And Cloud As A Storage Tier
Hitachi Data Systems has recently announced that it has added the native NAS function to its VSP G series i.e. VSP G400, G600, G800, on a controller card, as well as cloud as a storage tier through the Hitachi Content Platform. Formerly, the NAS had to be added through discrete…
By: Procurepod in  Computers and Technology  >  Hardware   May 05, 2016  
0
  Likes: 0

Lenovo Thinkpad T61 Laptop Reviews
14-inch widescreen ThinkPad T61 widescreen is very similar with the past ThinkPad T60, there is almost no difference between them from the appearance. Only a few small details (such as the body of the Logo) has changed, but the most important change is internal body changes, where we observed the…
By: AlikDiana in  Computers and Technology  >  Hardware   May 05, 2016  
0
  Likes: 0

The Difference Between Thinkpad T410 And Thinkpad T400
Compared with the previous T400 series, T410 change is two parts or even many parts, the first is the hardware platform fully upgraded to the new Core platform 32nm process. Secondly, the change of appearance make this product looks more like T400s upset version. And more humanized performance upgrade, allowing…
By: AlikDiana in  Computers and Technology  >  Hardware   Apr 29, 2016  
0
  Likes: 0

Thinkpad T410 Full Evaluation: Redemption for the Lenovo
Over the years T-Series has been lasted for a development road of volume and performance, not as thin as X series, not as large as R series. For the performance, ThinkPad series aimed at the mainstream crowd, more tend to business users, with a good processor, high storage performance, so…
By: AlikDiana in  Computers and Technology  >  Hardware   Apr 28, 2016  
0
  Likes: 0

Effects Of Lto - 7 on the Total Cost Of Ownership (tco) Of Long - term Storage
The fast pace development in information and technology has rendered many useful things useless, while also creating a dilemma for the consumer whilst making product choices. Every consumer now needs to get to know a product thoroughly before making the purchase, the consumer needs to compare it with every other…
By: Procurepod in  Computers and Technology  >  Hardware   Apr 27, 2016  
0
  Likes: 0

Philadelphia Computer Services
Computer repair involves specialization in troubleshooting, examination and repair of a variety of hardware and software issues, in addition to computer network problems. Computer repair services includes a wide range of IT services, computer support and management for small to medium sized businesses. Scorpion Computer Repair is a Philadelphia’s firm…
By: John138 in  Computers and Technology  >  Hardware   Apr 26, 2016  
0
  Likes: 0

Thinkpad T520 Reviews: The Most Professional Business Notebook
In terms of design, Lenovo ThinkPad T520 is the same with other T-series models, pure black appearance conform to the requirements of the business is composed of notebook computer, the overall design simple models competent, prominent business temperament, and continued the ThinkPad T series of classic design. Matte painting process…
By: AlikDiana in  Computers and Technology  >  Hardware   Apr 13, 2016  
0
  Likes: 0

Thinkpad T500 Reviews: Only 15 Inch T61 Upgraded Version?
ThinkPad T500 Series products consist of a 15.4 inches screen, and so on 14.1-inch T400, X200 product is 12.1 inches. This coming question is, why would its ThinkPad product line began to use size line to be divided? Speculates that the reason from two aspects: the first is lenovo’s IdeaPad…
By: AlikDiana in  Computers and Technology  >  Hardware   Apr 08, 2016  
0
  Likes: 0

Article Views: 929    Report this Article