9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. II-2-9
12 Protection/expansion
port
RJ-45 connector.
For IDU 20x and IDU 155o it provides bus interconnection between paired
IDUs for hot-standby or space diversity operation. Tx switching is not hitless,
Rx path switching (voting) is hitless.
Tx/Rx online and primary/secondary status is indicated by the protection
connector LEDs as:
• Green Online LED is on for an online Tx and/or Rx. (Normally the online
IDU is online for Tx and Rx).
• Green Online LED is off for the offline IDU (IDU is not transmitting or
controlling the Rx diversity bus.
• Orange Primary LED is on for the primary IDU. (The primary designated
IDU is default online for Tx and Rx).
• Orange Primary LED is off for the secondary IDU.
13 Trib ports 1 to 20 RJ-45 connector assemblies for tributary connection; one RJ-45 port per E1/
DS1. E1 termination is set for unbalanced or balanced in 9500 MXC CT. DS1
is 100 ohms balanced with options for AMI or B8ZS, and trib cable length.
Cable options provide extension to BNC connectors for unbalanced, or to RJ-45
plugs or to unterminated wires for balanced.
16 Optical 1 SC type single mode optical trib connector assembly.
The receive-level range is -31 dBm (max sensitivity) to -7 dBm (max input
power). Transmit output is within limits of -15 dBm to -8 dBm.
Cable options are available to provide extensions to SC, FC or LC connectors.
With protected IDUs, Y-cables are fitted to provide common Tx and Rx optical
interfaces.
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