Alcatel-Lucent 9500 MXC User Manual page 849

3DB 23063 ADAA - Rev 004 July 2007
However, capacity issues must be considered where co-channel operation is
required, given the available RAC 40 capacity options of:
• Co-channel 64/75xE1
• Co-channel 84/100xDS1
• Co-channel STM1/OC3
As one INU/INUe has a maximum backplane bus capacity of 100xE1, 128xDS1,
or 2xSTM1/OC3, the available co-channel options means that only co-channel
STM1/OC3 operation is viable, and then only for a network terminal or repeater
node:
• One INU supports co-channel STM1/OC3 over a single link or repeated link.
Refer to the example shown in Figure E-3.
• For other capacity options two co-located INU/INUes must be used, as shown
in Figure E-4 where two co-channel 64xE1 RAC 40s are installed across the
INUs to support a 128xE1 backhaul.
Co-Channel STM1 Terminal Node
Figure E-3.
INU
DAC 2x155o RAC 40
NCC
2xSTM1
ODU 300
STM1
V
STM1 (V)
STM1 (H)
H
STM1
ODU 300
XPIC Cross-Connect Cables
Terminal
RAC 40
Slot 4
2xSTM1
9500 MXC User Manual
2xSTM1
Vol. VI-E-3