National Research and Education Network
Education Cloud Data Center
Multi-Channel HD Telemedicine Solution
Over The Top/Multi-Tenant Data Center (OTT/MTDC)
Internet Exchange Point (IXP)
Internet Access Provider (IAP)
Design & Simulation
Planning & Analytics
Oil & Gas IoT
HPC & Operations Management
Digital Urban Rail
Retail Cloud Platform
Enterprise Data Center
Enterprise Cloud Communications
Network Management System
Buy from Huawei
If you want to get more information about your project, you can submit your information and we will contact you as soon as possible.
If your company has signed an eDeal contract with Huawei, please buy your required product/solution via the link below.
Buy from resellers
Search for a nearby reseller and get direct contact information.
Become a Partner
Resources and Support
Huawei Authorized Learning Partner
Huawei Authorized Information and Network Academy
The customers always ask when ESC or OSC will be used, and what the main features are, so we need to have a summary for the application scenarios and features.
1. OSC and ESC application scenarios:
1.1 When OSC is necessary?
1) Adopt orderwire phone.
2) OLA (without services added or dropped).
3) Support WDM channel ASON.
4) Provide optical layer management overhead of OTN.
5) Support OWSP protection.
1.2 When ESC is necessary?
1) CWDM network.
2) Beyond 52dB, single long hop.
2. OSC and ESC features:
2.1 OSC (Optical Supervisory Channel) : The OSC transmits the monitoring and management information among the stations. The channel of the OSC is at 1510 nm, that is to say, it is independent main signal and supervisory signal. The OSC boards include the HSC1, SC1 and the SC2, and the insertion loss of FIU must be considered. And any site can be supervised by OSC.
2.2 The ESC(Electrical Supervisory Channel) : it reduces the investment of the OSC. It also deletes the insertion loss of the FIU. This lowers the cost and the power budget of optical channels. But the following restrictions on using ESC is as follow:
No services are added to or dropped from the OLA site. The ESC function cannot be provided by the OTU. Use the DCN network to provide management.
When the ESC is used, order wire cannot be provided. At present, order wire interfaces are on the OSC board.
The customers can choose the ESC or OSC in light of the application scenarios and features for their own current network.