The H805ADIF board is a 32-port ADSL2+ over ISDN service board. It works with the ADSL terminal unit-remote end (ATU-R) through the ADSL2+ port to provide 32 channels of ADSL2+ signals.
Working principle of the H805ADIF board:
The basic working principle of the H805ADIF board is as follows:
* The control module loads the board software, controls the running of the board, and manages the entire board.
* The protection module protects and isolates the board from lightning strikes. The DC block isolates the direct current. The protector protects the high voltage.
* The interface module supports two functions:
– In the upstream direction, the interface module converts line signals into a cell flow, aggregates the flow to the forwarding module, and then reorganizes the flow into ATM packets.
– In the downstream direction, the forwarding module transmits the ATM cell flow to the interface module. Then, the interface module converts the flow into downstream line signals.
* The forwarding module processes services. The detailed process is described later.
* The power module supplies power to each functional module of the board.
* The clock module provides clock signals for each functional module of the board.
The service process of H805ADIF is as follows:
* In the upstream direction, the interface module transmits subscriber line signals to the forwarding module. The forwarding module reorganizes the cell flow into ATM packets, encapsulates the ATM packets into IP packets, and performs CAR on the IP packets.
Controlled by the logical switch, the IP packets are transmitted to the backplane bus through the backplane interface.
* In the downstream direction, the forwarding module decapsulates the IP packets from the backplane bus, performs CAR on the IP packets, reorganizes the IP packets into ATM packets, and transmits the ATM packets to the interface module. The interface module converts the packets into analog signals and transmits the signals to subscriber lines.
Indicator of H805ADIF:
H808ADIF Board Introduction:
The H808ADIF board is a 32-port ADSL2+ over ISDN service board. It works with the ADSL terminal unit-remote end (ATU-R) through the ADSL2+ port to provide 32 channels of ADSL2+ signals.
Working principle of the H808ADIF board:
The basic working principle of the H808ADIF board is as follows:
* The control module loads the board software, controls the running of the board, and manages the entire board.
* The protection module protects and isolates the board from lightning strikes. The DC block isolates the direct current. The protector protects the high voltage.
* The interface module supports two functions:
– In the upstream direction, the interface module converts line signals into a cell flow, aggregates the flow to the forwarding module, and then reorganizes the flow into ATM packets.
– In the downstream direction, the forwarding module transmits the ATM cell flow to the interface module. Then, the interface module converts the flow into downstream line signals.
* The forwarding module processes services. The detailed process is described later.
* The power module supplies power to each functional module of the board.
* The clock module provides clock signals for each functional module of the board.
The service process of the H808ADIF is as follows:
* In the upstream direction, the interface module transmits subscriber line signals to the forwarding module. The forwarding module reorganizes the cell flow into ATM packets, encapsulates the ATM packets into IP packets , and performs CAR on the IP packets.Controlled by the logical switch, the IP packets are transmitted to the backplane bus through the backplane interface.
* In the downstream direction, the forwarding module decapsulates the IP packets from the backplane bus, performs CAR on the IP packets, reorganizes the IP packets into ATM packets, and transmits the ATM packets to the interface module. The interface module converts the packets into analog signals and transmits the signals to subscriber lines.
Indicator of the H808ADIF:
Working principle of the H805ADIF board:
* The control module loads the board software, controls the running of the board, and manages the entire board.
* The protection module protects and isolates the board from lightning strikes. The DC block isolates the direct current. The protector protects the high voltage.
* The interface module supports two functions:
– In the upstream direction, the interface module converts line signals into a cell flow, aggregates the flow to the forwarding module, and then reorganizes the flow into ATM packets.
– In the downstream direction, the forwarding module transmits the ATM cell flow to the interface module. Then, the interface module converts the flow into downstream line signals.
* The forwarding module processes services. The detailed process is described later.
* The power module supplies power to each functional module of the board.
* The clock module provides clock signals for each functional module of the board.
The service process of H805ADIF is as follows:
* In the upstream direction, the interface module transmits subscriber line signals to the forwarding module. The forwarding module reorganizes the cell flow into ATM packets, encapsulates the ATM packets into IP packets, and performs CAR on the IP packets.
Controlled by the logical switch, the IP packets are transmitted to the backplane bus through the backplane interface.
* In the downstream direction, the forwarding module decapsulates the IP packets from the backplane bus, performs CAR on the IP packets, reorganizes the IP packets into ATM packets, and transmits the ATM packets to the interface module. The interface module converts the packets into analog signals and transmits the signals to subscriber lines.
Indicator of H805ADIF:
The H808ADIF board is a 32-port ADSL2+ over ISDN service board. It works with the ADSL terminal unit-remote end (ATU-R) through the ADSL2+ port to provide 32 channels of ADSL2+ signals.
Working principle of the H808ADIF board:
* The control module loads the board software, controls the running of the board, and manages the entire board.
* The protection module protects and isolates the board from lightning strikes. The DC block isolates the direct current. The protector protects the high voltage.
* The interface module supports two functions:
– In the upstream direction, the interface module converts line signals into a cell flow, aggregates the flow to the forwarding module, and then reorganizes the flow into ATM packets.
– In the downstream direction, the forwarding module transmits the ATM cell flow to the interface module. Then, the interface module converts the flow into downstream line signals.
* The forwarding module processes services. The detailed process is described later.
* The power module supplies power to each functional module of the board.
* The clock module provides clock signals for each functional module of the board.
The service process of the H808ADIF is as follows:
* In the upstream direction, the interface module transmits subscriber line signals to the forwarding module. The forwarding module reorganizes the cell flow into ATM packets, encapsulates the ATM packets into IP packets , and performs CAR on the IP packets.Controlled by the logical switch, the IP packets are transmitted to the backplane bus through the backplane interface.
* In the downstream direction, the forwarding module decapsulates the IP packets from the backplane bus, performs CAR on the IP packets, reorganizes the IP packets into ATM packets, and transmits the ATM packets to the interface module. The interface module converts the packets into analog signals and transmits the signals to subscriber lines.
Indicator of the H808ADIF:
For complete Specifications of the ADSL2+ over ISDN service board,please contact Hong Telecom Equipment Service Limited in any time.
Hong Telecom Equipment Service Limited (HongTelecom) is a leading professional equipment distributor and service provider in telecommunication infrastructure and solution field, we can provide Huawei H805ADIF /H808ADIF 32-port ADSL2+ over ISDN service board with the shortest lead time and best quanlity.
Comments
Post a Comment