3Com 3C13886 Installation Guide - Page 138

Router 1-port Ce3 Fic

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3Com Router Module Guide Chapter 4 T1 cable (100-ohm straight-through shielding network cable) Network interface connector RJ-45 Router DDN, etc RJ-45 St-raight-through cable Figure 4-29 Extending a T1 cable Step 3: Power on the router, and check the behavior of the LINK LED on the card panel: OFF means fault occurs on the line. Check the line status. 4.6 ROUTER 1-PORT CE3 FIC 4.6.1 Introduction ROUTER 1-PORT CE3 FIC, the 1-port channelized E3 interface card, delivers these functions: z In E3 mode, transmitting, receiving, and processing one channel of E3 fast traffic; providing E3 traffic access. z In CE3 mode, providing the subscribers with N x 64 kbps low-speed access, where N is smaller than or equal to 128. Note: E3 represents the tertiary group rate of E system in the TDM system, that is, 34.368 Mbps. Through E23 and E12 demultiplexing, an E3 channel can be channelized into 16 E1 lines, each supporting both the E1 and CE1 modes. E23 means either E2-to-E3 multiplex or E3-to-E2 demultiplex, and E12 means E1-to-E2 multiplex or E2-to-E1 demultiplex. "E23" and "E12" discussed here represent the demultiplex process. 4.6.2 Interface Attributes The following table describes the interface attributes of the ROUTER 1-PORT CE3 FIC. Table 4-15 ROUTER 1-PORT CE3 FIC interface attributes Attribute Description Connector SMB 4-29

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3Com Router Module Guide
Chapter 4
4-29
Network interface connector
Straight-through cable
-
Network interface connector
-
Network interface connector
-
RJ-45
Network interface connector
-
RJ-45
Network interface connector
-
Network interface connector
-
Network interface connector
RJ-45
Network interface connector
RJ-45
shielding network cable)
T1 cable (100-ohm straight-through
Network interface connector
Straight-through cable
-
Network interface connector
-
Network interface connector
-
RJ-45
Network interface connector
-
RJ-45
Network interface connector
-
Network interface connector
-
Network interface connector
Router
DDN, etc
RJ-45
Network interface connector
RJ-45
shielding network cable)
T1 cable (100-ohm straight-through
Figure 4-29
Extending a T1 cable
Step 3: Power on the router, and check the behavior of the LINK LED on the card
panel: OFF means fault occurs on the line. Check the line status.
4.6
ROUTER 1-PORT CE3 FIC
4.6.1
Introduction
ROUTER 1-PORT CE3 FIC, the 1-port channelized E3 interface card, delivers these
functions:
In E3 mode, transmitting, receiving, and processing one channel of E3 fast traffic;
providing E3 traffic access.
In CE3 mode, providing the subscribers with N x 64 kbps low-speed access,
where N is smaller than or equal to 128.
Note:
E3 represents the tertiary group rate of E system in the TDM system, that is, 34.368 Mbps. Through E23
and E12 demultiplexing, an E3 channel can be channelized into 16 E1 lines, each supporting both the
E1 and CE1 modes. E23 means either E2-to-E3 multiplex or E3-to-E2 demultiplex, and E12 means
E1-to-E2 multiplex or E2-to-E1 demultiplex. “E23” and “E12” discussed here represent the demultiplex
process.
4.6.2
Interface Attributes
The following table describes the interface attributes of the ROUTER 1-PORT CE3
FIC.
Table 4-15
ROUTER 1-PORT CE3 FIC interface attributes
Attribute
Description
Connector
SMB