- Provides
the communication path between the SPE and the packet bus in the
PPN
-
Provides the link access procedure on the D-channel (LAPD) for
up to 8,192 links
- Provides
termination for ISDN-BRI and ISDN-PRI signaling links, expansion
archangel links connecting the processor to the expansion archangels
on EI circuit packs in each PN, and center stage control network
links connecting the processor the processor with SNI circuit
packs in the CSS
- Supports
firmware downloading
- Provides
X.25 termination to the DCS links and adjuncts such as CDR and
Audix
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