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برد هواوی EFT4 است 4 channel FE Ethernet transparent transmission board
Huawei EFT4 Board Product Overview
Huawei EFT4 Board is an Ethernet transparent transmission board, which is mainly used to solve telecommunications applications such as Ethernet service access, bandwidth management, and Ethernet service convergence. It can realize the point-to-point transparent transmission of Ethernet services. Through the interface on the Ethernet board, it realizes data transmission and reception, mapping, data flow control, and supports port-based point-to-point transparent transmission, data encapsulation/decapsulation, partial overhead and pointer processing, الحاق مجازی, and SDH mapping / Demapping, LCAS, و غیره.
Huawei OSN1500 EFT4 board completes the encapsulation and mapping functions: in the upstream direction, the mapping module first encapsulates the Ethernet signal into LAPS, HDLC or GFP format and performs cascading. Then, the mapping module converts the Ethernet signal into an SDH signal. در جهت پایین دست, the mapping module demaps the SDH signal and compensates for the virtual concatenation delay. Through the alignment operation, the mapping module decapsulates the data packet according to the encapsulation format. The data after decapsulation is sent to the network processing module.
Huawei EFT4 Board Product Pictures
Huawei EFT4 Board Product Specifications
| Function and Feature | شرح | ||
| نام تجاری | هواوی | ||
| قسمت شماره | 03020TNK | ||
| نام مدل | SSR2EFT4 | ||
| شرح | 4-Port 10M/100M Ethernet Transparent Transmission Processing Board | ||
| توابع اساسی | Transmits 4xFE services. | ||
| Port types | Supports 10BASE-T/100BASE-TX signals. | ||
| Electrical ports comply with IEEE 802.3u. | |||
| Functions when being used with an interface board | Provides ports on the front panel to receive/transmit 4xFE signals. | ||
| Port characteristics | Working modes | 100ام فول دوبلکس, 10ام فول دوبلکس, مذاکره خودکار | |
| Traffic control mode at ports | Auto-negotiation mode | پشتیبانی نشده | |
| Non-autonegotiation mode | پشتیبانی | ||
| Query/Setting of port status | پشتیبانی | ||
| Query of port types | پشتیبانی | ||
| Setting of optical power thresholds | پشتیبانی نشده | ||
| ماژول نوری قابل اتصال | پشتیبانی نشده | ||
| Service categories | EPL service | از انتقال شفاف مبتنی بر PORT پشتیبانی می کند. | |
| Service specifications | Formats of Ethernet data frames | IEEE 802.3 | پشتیبانی |
| Ethernet II | پشتیبانی | ||
| IEEE 802.1q TAG | پشتیبانی | ||
| Concatenation granularities | از VC-12 پشتیبانی می کند, VC-3, VC-12-Xv (X ≤ 63), and VC-3-Xv (X ≤ 3) granularities. | ||
| Encapsulation formats | HDLC | پشتیبانی | |
| LAPS | پشتیبانی | ||
| GFP-F | پشتیبانی | ||
| MPLS technology | پشتیبانی نشده | ||
| VLAN technology | Supports VLAN transparent transmission. | ||
| Maximum uplink bandwidth | 622 مگابیت بر ثانیه | ||
| Maximum bound bandwidth | 12xVC-3, or 63xVC-12 + 9xVC-3 | ||
Huawei EFT4 Board Product and More Related Boards
SS-ETF8 8x 10M/100M fast Ethernet twisted-pair interface board
SS-EFS401-N2 4xfast Ethernet processor board with switching function
SS-EFS001-N4 fast Ethernet processor board with changeover function
SS-EFT8A01-N1 8-ports 10M/100M Ethernet transparent transmission processing board
SS-EFT8-N1 16-ports 10M/100M Ethernet transparent transmission processing board
SS-EFT4-R1 4-ports 10M/100M Ethernet transparent transmission processing board
Huawei EFT4 Board Applications
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