Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 195

Connecting T1/E1 IMA Network Modules
This chapter describes how to connect 4- and 8-port T1 and E1 IMA (inverse multiplexing for ATM)
network modules for Cisco modular routers and contains the following sections:
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To determine whether your router supports a specific network module, see
Tip
IMA Network Modules
This section provides information about the following network modules for Cisco modular routers:
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Each port provides 1.544 Mbps/2.048 Mbps connectivity. The IMA aggregation of multiple T1/E1 links
increases bandwidth inexpensively to allow WAN uplinks at speeds ranging up to those of a T3/E3 link.
Figure 12-1 4-Channel IMA T1 Network Module
ATM-T1
4T1-IMA
OL-2485-20
IMA Network Modules, page 12-1
Connecting T1/E1 IMA Ports to the Network, page 12-3
IMA Network Module Interface Numbering, page 12-3
T1/E1 IMA Network Module LEDs, page 12-4
4-port T1 IMA network module (NM-4T1-IMA) (see
8-port T1 IMA network module (NM-8T1-IMA) (see
4-port E1 IMA network module (NM-4E1-IMA) (see
8-port E1 IMA network module (NM-8E1-IMA) (see
SEE MANUAL BEFORE INSTALLING NETWORK MODULE
C H A P T E R
Figure 12-1)
Figure 12-2)
Figure 12-3)
Figure 12-4)
T1-IMA 3 T1-IMA 2 T1-IMA 1 T1-IMA 0
AL AL AL AL
LP LP LP LP
EN
CD CD CD CD
Cisco Network Modules Hardware Installation Guide
12
Table 1-6 on page 1-16.
12-1