Appendix H: Asu Background Information; Application-Specific Units And Supported Services; Link Interface Unit; Ethernet Interface Unit - Nortel DMS-100 User Manual

Appendix H: ASU background
information
This appendix provides background information on application-specific units
(ASU) and the SuperNode platforms that support these ASUs.
Application-specific units and supported services
The following ASUs are described in this section:
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Link interface unit

The link interface unit (LIU7) provides an interface for common channel
signaling 7 (CCS7). CCS7 supports a variety of services, including the
following:
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Ethernet interface unit

The Ethernet interface unit (EIU) supports Ethernet connectivity on the DMS-
100 switch. The operating company can configure the EIU as either an IP or
link interface unit (LIU7)
Ethernet interface unit (EIU)
frame relay interface unit (FRIU)
X.25/X.75 link interface unit (XLIU)
network interface unit (NIU)
voice processing unit (VPU)
application processor unit (APU)
integrated user services part (ISUP) and connectionless (TCAP) -based
services
enhanced 800 services (E800)
automated calling card system (ACCS)
custom local area signaling service (CLASS)
advanced intelligent network (AIN) services
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