User guide
2-17
Cisco Transport Manager Release 9.2 GateWay/CORBA User Guide and Programmer Manual
OL-20937-01
Chapter 2 NE- and CTM-Specific Details
2.1.10 ONS 15540
2.1.10.1 Slots
The ONS 15540 is a single-shelf NE with 13 slots. The ONS 15540 is a dual-CPU system where the
processor cards occupy slot 7 and slot 8. Slot 1 and slot 2 contain the multiplexer/demultiplexer
motherboards, which are populated with optical multiplexer/demultiplexer modules. The remaining slots
contain the line card motherboards, which are populated with transponder modules.
2.1.10.2 PTPs
All PTPs are bidirectional for the ONS 15540. PTPs do not support the service state attribute.
Wavepatch interfaces on transponder cards and filter interfaces on multiplexer/demultiplexer cards are
reported as PTPs, even though the cards are not visible externally from the fixed optical backplane. Wave
interfaces on transponder cards are reported as PTPs even though they are internal interfaces, because
alarms are generated on these interfaces and CTPs are not supported.
The following interfaces are reported as PTPs:
• Transparent—Client-side transparent interface.
• Wavepatch—Passive optical interface on the transponder card that is patched to the filter interface
on the multiplexer/demultiplexer card.
• Filter—Passive optical interface that passes a single wavelength on the multiplexer/demultiplexer
card. It is patched to the wavepatch interface on the transponder card.
• WDM—Passive external WDM interface on the multiplexer/demultiplexer card that carries multiple
wavelengths, including the ones added or dropped by the card. It can be used for internode or
intermultiplexer/demultiplexer patching.
• Thru—Passive external WDM interface on the multiplexer/demultiplexer card that carries multiple
wavelengths, including the added ones but excluding the wavelengths dropped by the card. It can be
used for internode or intermultiplexer/demultiplexer patching.
• Filterband—Passive special external WDM interface on the 16 wavelength
multiplexer/demultiplexer card that passes through a special band of wavelengths. It is patched to
the corresponding filter group interface on the other multiplexer/demultiplexer card.
• Filter group—Passive special external WDM interface on the 16 wavelength
multiplexer/demultiplexer card that drops a special band of wavelengths.
• Wave—Optical lambda interface on the multiplexer/demultiplexer motherboard. Converts
uncolored to one ITU grid wavelength.
• Oscfilter—Passive optical interface that passes OSC wavelengths on the multiplexer/demultiplexer
card. It is patched to the wave interface on the transponder card.
• FastEthernet—Interface on the CPU card for Ethernet connectivity.
• TenGigEthernetPhy—Interface on the 10GE transceiver.
• WavePassThru—External interface on the POM dummy module for 10GE configurations.
2.1.10.3 CTPs
CTM GateWay/CORBA does not support CTPs for the ONS 15540.