1 Port Oc48/ 4 Port Oc12/Oc3 + 12 Port T1/E1 + 4 Port T3/E3 Cem Interface Module Configuration Guide, Cisco - Cisco ASR 900 Series Configuration Manual

Additional References
Standards and RFCs
Standard/RFC
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MIBs
MIB
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1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco

IOS XE Fuji 16.7.x (Cisco ASR 900 Series)
6
Configuring Support of 1 port OC-48/ 4 port OC-12/OC-3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module
Title
There are no standards and RFCs for this feature.
MIBs Link
There are no MIBs for this feature.
http://www.cisco.com/go/mibs
Link
http://www.cisco.com/cisco/web/support/index.html