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Hardware description 4-17
Planning Guide NT6Q92MA Rel 1.0 Iss 1 Standard September 2006
2x155M circuit pack
The 2x155M circuit pack can be installed in the tributary slots of the
OME6130 chassis.
Figure 4-12 shows the faceplate of a 2x155M circuit pack.
The 2x155M circuit pack supports pluggable optical and electrical transceivers
for the two STM-1 line interfaces. The STM-1 optical and electrical interfaces
use small form-factor pluggable (SFP) interfaces to deliver optical and
electrical rate and reach flexibility on a per port basis. The STM-1 optical
interfaces use SFP modules for short reach, intermediate reach and long reach,
and CWDM access applications. The STM-1 electrical interfaces use SFP
modules for intra office applications.
Figure 4-7 shows the STM-1 interface
ports on the center of the 2x155M circuit pack.
The PEC for the 2x155M circuit pack is listed in Table 4-11 .
Figure 4-12
2x155M circuit pack faceplate
2x155M functionality overview
The 2x155M circuit pack supports the following:
• supports up to 2 STM-1 optical (o) or electrical (e) services
• auto-detection of SFP modules, which are hot pluggable
• auto provisioning of STM-1 specific optical and electrical SFPs
• supports single fiber working (SFW) SFPs at the STM-1 rate
• terminates RS and MS overhead
— terminates RS and MS overhead bytes in Rx direction
— inserts RS and MS overhead bytes in Tx direction
• RS DCC selectable (default is Off)
• MS DCC selectable (default is Off)
• supports RS DCC or MS DCC transparency for pass through functionality
on overhead tunnels
• supports RS, MS, path and tributary unit (TU) PMs
Table 4-11
2x155M circuit pack
2x155M circuit pack PEC code
2x155M NT6Q17AA