TD140 Hardware Maintenance Guide 7.13.2
23
3
Blades and RTMs
Rev. 001-140228
P
ACKET
P
ROCESSING
M
ODULE
(PPM40)
The PPM40 packet processing module (
) provides high-performance packet
processing for the TD140. The PPM delivers I/O processing for 10 Gigabit (Gb) and 1 Gb
Ethernet interfaces.
PPM40 Blade 1 is used for receiving persistence data from G10 probes through the ETH port.
for details.
Figure 3.3 - TD140 PPM40 Blade
Front Panel Interfaces and LEDs
The PPM front panel provides the external interfaces for accessing the Cavium Networks
OCTEON II multi-core processors and Ethernet switches, as well as status indicators and
mechanisms for securing and releasing the PPM from the shelf. The front panel also serves as
an EMI/RFI barrier for the PPM. The front panel complies with PICMG 3.0 Revision 2.0.
Front Panel Features
Top and bottom locking ejector latches, with a hot-swap switch for the bottom latch
Top and bottom thumbscrews that secure the PPM into the shelf
A recessed reset switch for the payload processors (packet processors and Local
Management Processor [LMP])
Four SFP/SFP+ sockets connected to the Fabric switch
Status and activity LEDs for the front panel network interfaces
The following PPM40 features are not used:
An RJ-45 10/100/1000BASE-T Ethernet connection to the LMP is used for session
persistency
An RJ-45 serial port connection to the LMP
Two USB ports to the OCTEON processors
Two RJ-45 dual serial port connections to the OCTEON processors (one for each
processor)
Double-shielded cables are required for both serial and Ethernet port connections to
minimize the possibility of issues related to external Electromagnetic Interference (EMI).
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