HUAWEI TNH2EGT103 03053657 EGT1 Ethernet transmission board
Product Description:
HUAWEI EGT1 is an Ethernet transparent transmission board.
Function and Feature | Description | Basic functions | Transparently transmits one channel of GE signals. | Interface specifications | Provides one 1000BASE-SX/1000BASE-LX/1000BASE-VX/1000BASE-ZX
Ethernet optical port that supports auto-negotiation and complies
with IEEE 802.3z;
uses hot-swappable SFP optical modules.
The GE optical port supports single-fiber bidirectional optical
modules. | Format of service frames | Ethernet II, IEEE 802.3, or IEEE 802.1q/p
Supports a frame length ranging from 64 bytes to 9,600 bytes. | Maximum uplink bandwidth | 4xVC-4 | VCTRUNK | 1 | Encapsulation format | Supports HDLC, LAPS, and GFP-F. | Service level and Concatenation granularity | VC-3, VC-4, VC12-Xv (X ≤ 63), VC3-Xv (X ≤ 12), and VC4-Xv (X ≤ 4) | Ethernet service | Supports EPL. | MTU | Supports the setting of the packet length (ranging from 1,518 bytes
to 9,600 bytes). After the new resetting takes effect, the
permissible maximum length of the packets accessed at the IP
interface depends on the MTU settings. | MPLS | Not supported | VLAN | Supports transparent VLAN transmission. | LPT | Supports point-to-point Link State Pass Through (LPT). | Multicast | Not supported | ETH-OAM | Supports the continuity check (CC) for the multicast services,
loopback (LB) test for the unicast services, network loopback
detection (LD), link trace (LT) test, auto-negotiation, fault
diagnosis, and link performance check. | CAR | Not supported | Flow control | Supports the GE port-based IEEE 802.3x flow control. | LCAS | Dynamically increases or decreases the bandwidth and realizes the
protection function, compliant with the ITU-T G.7042
Recommendations. | Ethernet test frame | Supports the reception and transmission of Ethernet test frames. | Ethernet performance monitoring (RMON) | Supports Ethernet performance monitoring at the port level. | Alarm and performance event | Provides rich alarms and performance events for easy management and
maintenance of the equipment. |
Working Principle - Composition: The EGT1 board consists of an interface module, a
service processing module, an encapsulation/mapping module, a
communication and control module, and a power supply unit.
- Signal Flow: In the receiving direction, the Ethernet frame is
received by the interface module, and after processing by the
service processing module, it is sent to the mapping module for VC
- 12 or VC - 3 mapping and then sent to the cross - unit. In the
sending direction, the VC - 12 or VC - 3 signal sent by the cross -
unit is demapped and then sent to the encapsulation module for de -
encapsulation. After that, the service processing module determines
the route, performs flow classification, and completes functions
such as frame delimiter, pre - code addition, CRC check code
calculation, and Ethernet performance statistics. Finally, it is
sent out through the Ethernet interface after serial - parallel
conversion and encoding by the interface processing module. The
control and communication module realizes the communication,
control, and service configuration functions of the board, and the
power supply unit provides the required DC power for all modules of
the board.
Panel Design - The panel of the EGT1 board is equipped with board - level
indicators, interfaces, and barcodes.
Slot Information - The EGT1 board can be inserted into slots IU1, IU2, and IU3
Product Details:
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