User's Manual

VOLUME II, CHAPTER 1, SYSTEM OVERVIEW
Figure 1-3. INUe
See:
l Plug-in Cards on page 18
l Data Packet Plane on page 24
l Adaptive Coding and Modulation (ACM) on page 24
l Platforms on page 26
Plug-in Cards
Plug-in cards for the INU or INUe enable quick and easy customization on Eclipse
configurations. All cards are hot-pluggable.
RACs support the radio modem function. In the transmit direction they take the
digital traffic from the backplane or data packet plane and convert it to an IF signal
for connection to an ODU 600. The reverse occurs in the receive direction.
l One RAC/ODU 600 combination is used for a 1+0 link.
l Two RACs with two ODUs are used for 1+1 hot-standby or diversity links.
l RACs control TX switching and RX voting on protected / diversity links.
DACs support the user interface.
l Different DACs support Ethernet, DS1, DS3, and OC3 connections.
l Multiplexer DACs support transport of OC3 or DS3 with NxDS1 rates.
l Ethernet DACs support a L2 switch function. DAC GE3 supports advanced
options for Synchronous Ethernet, ring/mesh protection, QoS, buffer
management, link aggregation, VLAN tagging, and OAM.
l Most DACs can be protected using a stacked (paired) configuration.
l DS1, DS3, and OC3 DACs support Ethernet-over-TDM options to enable
Ethernet transport over legacy TDM radio or leased-line links.
AUX (Auxiliary card) supports async or sync service-channel connections, and
alarm I/O options for connection to external devices.
18 AVIAT NETWORKS