Cisco Cisco IOS Software Release 12.0(14)S

This feature module describes the Multichannel STM-1 Port Adapter (PA-MC-STM-1). It includes 
information on the benefits of this port adapter, supported platforms, related documents, configuration 
examples and a command reference detailing new and enhanced commands.

This document includes the following sections:

The PA-MC-STM-1 is a high-speed single-port multichannel STM-1 port adapter. You can configure the 
PA-MC-STM-1 as a multichannel E1/E0 STM-1 port. The PA-MC-STM-1 can be configured into 63 
individual E1 links. Each E1 link can carry a single channel at full or fractional rates, or be broken down 
into multiple DS0 or Nx64 Kbps rates. The PA-MC-STM-1 supports up to three TUG-3/AU-3 transport 
slots numbered 1 through 3. You can configure each TUG-3/AU-3 to carry 21 SDH TU-12s. Each SDH 
TU-12 is capable of carrying a channelized E1 frame, which can be unchannelized to N*64 Kbps 
timeslots.