Service Access Unit (Sau) - Ericsson MINI-LINK TN R4 ETSI Technical Description

Technical Description
3.4

Service Access Unit (SAU)

The SAU3 provides additional DCN capabilities, and User Input and Output
ports.
3.4.1 Overview
The SAU3 is fitted in an AMM 2p, AMM 2p B and AMM 6p C/D.
The main feature is to provide additional DCN capabilities. Protocols supported
are PPP, tunneling via IP, a Transparent Service Channel (TSC) and a terminal
server mode for MINI-LINK E access.
All IP based services are terminated at the NPU where the routing is performed
and LAN-, line- and radio interfaces are made available.
For more information on DCN, see MINI-LINK DCN Guideline ETSI.
Figure 23
The following front interfaces are available on the SAU3:
•
•
24
AUX 1
AUX 2
SAU3
AUX 1, one auxiliary interface, where the following interface types can be
configured:
V.28
G.703 E0 (64 kbit/s)
And the following ports are supported:
Six User In ports
Three User Out ports
AUX 2, one auxiliary interface, where the following interface types can be
configured:
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SAU3
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