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3.4. Discovering a Unit’s Serial Number and Installed Product Options
4Links EtherSpaceLink unit serial numbers are of the form Annn (e.g. A202).
The least-significant bits of the Ethernet Media Access Control (MAC) address of a unit are directly related to its
serial number:
00-50-C2-20 01 to 00-50-C2-21-2F-FF
A unit’s serial number may be read off its front panel display at boot time. Alternatively, click the toggle switch
upwards once to view the serial number of a running unit.
3.4.1. Installed Product Options
When viewing the serial number of a running unit, as above, the installed Product Options are listed as two-
character acronyms within square brackets.
For example, in the illustration in figure 6.1, the options are EW, ER and TT. See section 2.4, “Summary of MSR
Options”, for further information on the available MSR options.
3.5. The RG408 Hardware Platform
The RG408 hardware platform is supplied with eight SpaceWire ports and with front or rear mounted SpaceWire
connectors (RG408 or RG408-R, respectively).
The hardware is optionally available with SMA connectors for external synchronization (on the RG408-
S). These enable inter-box time-tag synchronization (on the DSI, SRR, MSR and ATI), as well as external
triggers (on a DSI).
The -L and -M suffixes indicate the FPGA size in an RG408 unit. The smaller FPGA is supplied in RG408-L
units. An Extra Resources “-M” option (on the RG408-M) supplies greater processing and memory
facilities. This provides for more than four ports on a DSI, for double the recording buffer memory on
an MSR, and for more ports or larger RMAP memories on an SRR.
The unit is intended to be used in a 19-inch rack and is 1U high.
3.5.1. Dimensions
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