9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. II-6-3
Capacity and Modulation
Capacity and modulation can be selected up to the maximum supported by each
installed RAC/ODU.
TDM Transport:
• For RAC 30V3, ETSI capacity options extend from 5xE1 to 75xE1, and STM1.
North American options extend from 4xDS1 to 100xDS1, 1xDS3 to 4xDS3,
and OC3.
• For the RAC 3X, ETSI capacity options extend from 64x to 100xE1, or 1/2x
STM1. ANSI options extend from 32x to 100xDS1, 4xDS3, or
1/2xOC3.
• Capacity is licensed per RAC/link, beginning with a base Node license of six
40xE1 links, or six 16xDS1 links.
Ethernet Transport
• For RAC 30 Ethernet capacity options extend from 6 Mbps to 150 Mbps.
• For RAC 3X the options extend from 50 to 300 Mbps.
• For the CCDP RAC 40, the options extend from 100 to 150 Mbps.
Depending on permitted capacity/bandwidth combinations, modulation is
selectable for QPSK, 16QAM, 32QAM, 64QAM, 128QAM, or 256QAM.
Liquid Bandwidth
Capacity can be assigned between Ethernet and TDM data over the same link.
• Using an E1 / 2 Mbps backplane bus, traffic is assigned in 1xE1 or 1x2 Mbps
steps between PDH and Ethernet data.
• With a DS1 / 1.5 Mbps backplane bus, traffic is assigned in 1xDS1 or 1x1.5
Mbps steps between PDH and Ethernet data.
• With an STM1/OC3 / 150 Mbps backplane bus, 1xSTM1/OC3 and 1x150
Mbps Ethernet can be transported over the same link.
Super PDH
The extension of over-air capacities to 75xE1 or 100xDS1 (Super PDH) means
that for most backhaul requirements there is no need to migrate to SDH. Staying
with PDH results in significant savings on cost of equipment, complexity, and
time.
Internal Cross-connects
By supporting up to six links with internal cross-connects, the Node provides a
much more compact and flexible solution when compared to stand-alone links.
Avoiding patch panels and cabling also provides a neater and more reliable
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