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1-port Channelized E3 FIC (3C13888) 71

1-port Channelized E3

FIC (3C13888)

The main functions of 1-port Channelized E3 FIC include:

■ Working in E3 mode, the card can transmit/receive and process the fast

traffic of one E3 channel, as well as provide the accessing of E3 traffic.

■ Working in CE3 mode, the card can provide the subscribers with the

low-speed accessing service at the speed of Nx64kbps, given N is smaller

than or equal to 128.

E3 represents the tertiary group rate of E system in the TDM system, that is,

34.368Mbps.Through the demultiplexing processes of E23 and E12, an E3

channel can be channelized into 16 E1 lines, each supporting both the operating

modes of E1 and CE1. E23 is used to indicate either E2-to-E3 multiplex or E3-to-E2

demultiplex, and E12 to indicate E1-to-E2 multiplex or E2-to-E1 demultiplex.

“E23” and “E12” discussed here represent the demultiplex process.

Interface Attributes

Panel and Interface LED The following figure illustrates an 1-port ChannelizedE3 FIC panel.

Figure 13 1-port E3 FIC panel

The following table describes the LEDs on the card panels.

Interface Cable The external interface provided by 1-port Channelized E3 FIC is two SMB sockets

respectively for Tx (Transmit end) and Rx (Receive end). The interface adopts the

Table 13 1-port Channelized E3 FIC Interface attributes

Attribute Description

Connector SMB

Connector number 2

Interface standard G.703, G.704,

G.751

Interface speed 34.368Mbps

Cable E3 cable

(75-ohm coaxial

cable)

Operating mode E3

CE3

Supported service E3 leased line

Table 14 LED description of 1-port E3 FIC

LINK

OFF means the link is not connected and ON means the link is connected.

ACT

OFF means no data is being transceived on the interface and blinking means data

is being transceived.

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