TNK2STG,Huawei OSN 8800 Centralized Clock Board

Huawei OSN 8800 Centralized Clock Board TNK2STG Overview

STG: Centralized Clock Board

The available functional versions of the STG board are TN11, TN12, TN13, TN52, TN54, TNK2, TNK3.

The TNK2STG board is a type of clock board, which locks the reference clock source and provides clock signals and frame signals to the system. The clock signals comply with ITU-T G.813 and ITU-T G.823. The STG board can apply to the optical-layer and electrical-layer scenarios.

The STG board is mainly used to lock the reference clock source and provide signals and frame signals to the system.

The STG board consists of a control and communication module and a clock processing module.

There are indicators on the front panel of the STG board.

One slot houses one STG board.

Function and Feature

Function and Feature	Description
Basic function	Locks the reference clock source. Provides the system with ITU-T clock signals that comply with G.813 and G.823 and frame signals. Synchronizes the time of an NE with the time of the upstream system.
Active/standby switching function	The STG board uses a 1+1 hot backup scheme. The two STGs serve as mutual backups. When both of them are normal, one of them functions as the active board, and the other functions as the standby board. Service boards select the clock source according to the status of the two STGs. When the active STG is faulty, an active/standby switching occurs. Then, the standby STG becomes active, and the services boards select the clock from the current active STG according to the status of the two STGs. NOTE: The TN52STG and TN54STG boards can back up each other. That is, a TN52STG board and a TN54STG board can work in 1+1 hot backup mode. The TN13STG and TN11STG (or TN12STG) boards can back up each other. That is, a TN13STG board and a TN11STG (or TN12STG) board can work in 1+1 hot backup mode. The TNK3STG and TNK2STG boards can back up each other. That is, a TNK3STG board and a TNK2STG board can work in 1+1 hot backup mode.
Clock source selection function	Traces the external clock source, service clock source, or local clock source, to provide the synchronization clock source for itself and the system.
Time synchronization function	Synchronizes the time of an NE with the time of the upstream NE.
G.8275.1	Supported.
G.8273.2	Supported. NOTE: Only supported by the TN54STG board of the VER.C.

Hunan Moka Information Technology Co., Ltd.

A professional import and export trade company specializing in the agency sales and services of the full range of Huawei telecom equipment,Huawei parts,Cisco products. Our product range includes Huawei Microwave,Huawe DWDM,Huawei SDH,Huawei OSN Series,Huawei parts, Cisco switches, Cisco routers, Cisco firewalls, Cisco wireless APs, Cisco conference terminals, Cisco optical modules, Cisco fiber optic jumpers, Cisco industrial switches, and Cisco software licenses. As an authorized distributor of Cisco in China, we directly purchase hardware and software from Cisco China in the name of projects. As a result, you can obtain the best discounts from Cisco China, typically ranging from 60% to over 90%. Due to Cisco's global sales policy, if you order Cisco licenses, with your consent and permission, we will assist you in installing and activating Cisco licenses within China. Alternatively, you can activate them in your own country, and we will transfer the licenses to you. All you need is a Cisco Smart Account. When the Cisco licenses expire, you can choose to renew them yourself or contact us.

As an authorized distributor of Cisco in China, we directly purchase hardware and software from Cisco China in the name of projects.

Huawei OSN 8800 Centralized Clock Board TNK2STG

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