9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. II-3-113
2xSTM1 Co-Channel Ring Node
Figure 3-63 illustrates co-channel STM1 ring operation.
• Each INU supports two 1xSTM1 links; STM1 east and STM1 west.
• Each INU ports its STM1 east and west tribs to an external SDH mux, which
provides the ring protection mechanism.
• 9500 MXC links are configured for point-to-point operation.
Figure 3-63. Co-Channel STM1 Ring Node with Drop-Insert
300 Mbps Co-channel Ethernet Ring Node
Figure 3-64 illustrates a 300 Mbps DAC GE Ethernet ring solution using
co-channel 150 Mbps links east and west. Separate DAC GEs are required for the
RWPR and link aggregation functions.
• Using RAC 40s the east and west links are configured on the same 28 MHz
(ETSI) or 30 MHz (ANSI) radio channel.
• One DAC GE provides the RWPR ring function, which operates on 300 Mbps
link-aggregated virtual links. Separate DAC GEs provide the link aggregation
function.
• DAC GE 'A' in INU 1 aggregates the east 150 Mbps links to provide a single
300 Mbps connection on ports 1 to 4, using transparent mode with C1 and
C2 aggregation.
• DAC GE 'B' in INU 2 aggregates the west 150 Mbps links to provide a single
300 Mbps connection on ports 1 to 4, using transparent mode with C1 and
C2 aggregation.
Fan
NCC DAC 2x155o
INU
INU
1xSTM1
STM1 West
& STM1 East
STM1 West
& STM1 East
STM1 (V)
STM1 (H)STM1 (H)
1xSTM1
V
V
HH
XPIC Cross-Connect Cables
ODU 300
ODU 300
ODU 300
ODU 300
Fan
NCC
DAC 2x155o
STM1 (V)
RAC 40
RAC 40 RAC 40
RAC 40
2xSTM12xSTM1
2xSTM1
Ring Network
West East
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