3Com Router Module Guide
Chapter 4
4-34
Table 4-19
Interface attributes of the 8.8 ROUTER 1-PORT E3 ATM FIC
Attribute
8.8 ROUTER 1-PORT E3 ATM FIC
Connector SMB
Number of connectors
2
Interface standard
G.703, G.751, G.832, G.823
Interface rate
34.368 Mbps
Interface cable
E3/T3 cable (75-ohm coaxial cables)
Supported services
ATM traffic CBR (constant bit rate), rt_VBR (variable bit rate-real
time), nrt_VBR (variable bit rate-non real time), UBR (unspecified
bit rate)
4.8.3 Panel and Interface LEDs
The following figure illustrates the 8.8 ROUTER 1-PORT E3 ATM FIC panel:
Figure 4-33
8.8 ROUTER 1-PORT E3 ATM FIC panel
The following table describes the LEDs on the 8.8 ROUTER 1-PORT E3 ATM FIC
panel.
Table 4-20
LEDs on the 8.8 ROUTER 1-PORT E3 ATM FIC panel
LED
Description
LINK
OFF means no link is present; ON means a link is present.
ACT
OFF means no data is being transmitted or received; blinking means data is
being received or/and transmitted.
4.8.4 Interface Cable
The interface that the 8.8 ROUTER 1-PORT E3 ATM FIC provides uses two SMB
sockets for data transmitting and receiving respectively. The ports adopt the 75-ohm
unbalanced transmission mode and are connected to the peer device using a pair of
75-ohm unbalanced coaxial cables. Several cable length options are available.