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Cisco MGX 8220 Installation and Configuration
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Chapter
AUSM-8T1/E1
AUSM-8T1/E1
The AUSM-8T1/E1 is a multipurpose card that supports up to 8-T1 or E1 ports and can be used for the
following four MGX 8220 applications:
1. ATM Inverse Multiplexing nxT1 and nxE1 trunking
This application supports inverse multiplexed trunks between MGX 8220 shelves. In turn, this
supports inverse mult ip lex e d tr unk s be t ween BPX 862 0 and t he IGX ne tw or k n odes v ia MG X8220
shelves and remote MGX 8220 shel ves .
2. ATM UNI card with eight ports t o provide a high port den sity service module
With all ten available slots insta lled with the AUSM-8T1/E1 car ds, a single MGX 8220 s helf could
support up to 80 individual T1/E1 lines.
In UNI/NNI mode each card can support 1000 data connections and 16 management connections.
In STI format, each card can support 100 virtual paths.
3. UNI/NNI access to CPE and other Networks
This application allows access over an U N I to I M A-b a se d C P E an d over an N N I to an o th er ATM
network.
4. NNI/NNI access to CPEs
This application supports ATM ports over single T1/E1 line and IMA ports over multiple
T1/E1lines (connected to IMA based CPE).
The following back cards are co m p at ib le w ith t he AUSM-8T1/E1:
•RJ48-T1 back card for T1
•RJ48-E1 back card for E1
•SMB-E1 back card for E1
The 4-port AUSM back cards and IMATM backcards are not comp at ib le with the AUSM-8T1/E1.
The AUSM-8T1/E1 has the following featur es :
•Statistics collection.
•Support for VP connections.
•Support for BERT functionality with loopback pattern generation/verificatio n on individual T1/E1
lines.
•1:N redundancy with active and standby AUSM-8T1/E1 modules.
•Auto-card restore.
•Compatible with SRM-3T3.