3Com Router Module Guide
Chapter 4
4-36
z
Line clock (when working as DTE interface) and internal clock (when working as
DCE interface).
z
Four types of test measures: local cell loopback, local loopback, remote payload
loopback, and remote line loopback.
Note:
You may equip your router with ROUTER 1-PORT T3 ATM FIC cards to its full capacity. Yet, you are
recommended to install only one ROUTER 1-PORT T3 ATM FIC on it, whatever its model is, to ensure
performance of some key services.
4.9.2 Interface Attributes
The following table describes the interface attributes of the ROUTER 1-PORT T3 ATM
FIC.
Table 4-21
Interface attributes of the ROUTER 1-PORT T3 ATM FIC
Attribute
ROUTER 1-PORT T3 ATM FIC
Connector SMB
Number of connectors
2
Interface standard
G.703, G.704, G.823
Interface rate
44.736 Mbps
Interface cable
E3/T3 cable (75-ohm coaxial cables)
Supported services
ATM Traffic CBR, rt_VBR, nrt_VBR, UBR
4.9.3 Panel and Interface LEDs
The following figure illustrates the ROUTER 1-PORT T3 ATM FIC panel:
Figure 4-35
ROUTER 1-PORT T3 ATM FIC panel
The following table describes the LEDs on the ROUTER 1-PORT T3 ATM FIC panel.
