3Com Router Module Guide
Chapter 3 Multifunctional Interface Modules
3-59
Cable characteristic
impedance
100 ohm
Max transmission
distance
150 m (492.1 in.)
Operating mode
ATM T1 standalone link/IMA binding mode
Service AAL5
Protocol
PPPoA, PPPoEoA, IPoA, IPoEoA
Transmission rate
CBR/VBR-rt/VBR-nrt/UBR
3.15.4 Panels and Interface LEDs
The following figures show the panels of the ROUTER 4-PORT T1 IMA MIM interface
cards:
Figure 3-63
Front panel of the IMA-4T1 interface card
The LEDs on the front panel of the ROUTER 4-PORT T1 IMA MIM panel, as described
in the following table:
Table 3-37
Meaning of the LEDs
LED
Meaning
LINK
OFF: the link is disconnected.
ON: the link is connected.
ACT
Blink: data is being transmitted/received.
Off: no data is being transmitted/received.
3.15.5 Connection of the Interface Cable
1) Insert the ROUTER 4-PORT T1 IMA MIM conversion cable at the DB68 end to
the DB68 port of the ROUTER 4-PORT T1 IMA MIM interface card.