9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. II-3-107
• The example shows a terminal configuration, where each STM1/OC3 trib is
terminated on a DAC 155o plug-in. (The two DAC 155o plug-ins shown could
be replaced by a single DAC 2x155o or DAC 2x155e).
• One INUe also supports 2xSTM1/OC3 or 300 Mbps Ethernet co-channel XPIC
when configured as a repeater - no drop-insert (4 ODUs required). Each STM1/
OC3 / 150 Mbps stream is cross-connected on the backplane bus from one ODU
to its partner in the opposite direction.
Figure 3-58. Co-Channel STM1 Terminal
Paired INUs
Paired INU/INUes can be used to share backplane bus loading, as illustrated in
Figure 3-59, for a 150xE1 backhaul.
• By pairing Nodes the combined backplane bus capacity of 200xE1, 256xDS1,
4xSTM1/OC3, or 600 Mbps Ethernet is available to support:
• Co-channel 2x 75xE1 or 2x 100xDS1 in terminal Node configurations
(INUes are required to provide the number of slots needed for DAC 16x
plug-ins).
• Co-channel 2x 75xE1 or 2x 100xDS1 aggregation, as in Figure 3-59.
• Co-channel 2x 75xE1 or 2x 100xDS1 9500 MXC Super-PDH ring
operation. However for a typical single-gateway ring (all traffic sourced and
sunk at one site on the ring), 2x 64xE1 or 2x 84xDS1 are the ring
maximums. Refer to Appendix E.
• Co-channel 2xSTM1/OC3 ring operation. Requires an external ADM.
• Co-channel 2x 150 Mbps Ethernet rings. Links are operated point-to-point.
RSTP ring switching is provided internally using the DAC GE (RWPR) or
using an external switch with the DAC ES. Refer to Ring Node
Configurations on page 3-111.
Fan
RAC 40 RAC 40
NCC DAC 155
DAC 155
INU
STM1
STM1 (V)
STM1 (H)
STM1
STM1
STM1
V
H
XPIC Cross-Connect Cables
ODU 300
ODU 300
2xSTM1
2xSTM1
Terminal
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