8 SI-Ethernet User Guide
Issue: 1
2.3 Option module identification
Figure 2-1 SI-Ethernet
The SI-Ethernet can be identified by:
1. The label located on the topside of the option module.
2. The color coding across the front of the option module. SI-Ethernet being beige.
Figure 2-2 SI-Ethernet label
1. Topside module label
2. Underside module label. The color coding being beige.
2.3.1 Date code format
The date code is split into two sections: a letter followed by a number. The letter
indicates the year, and the number indicates the week number (within the year) in which
the option module was built. The letters start with A for 1991 (B for 1992, C for 1993
etc.).
Example: A date code of W31 would correspond to week 31 of year 2013.
2.4 Product conformance
The Ethernet interface complies with IEEE 802.3 and meets the isolation requirements
of safety standard EN50178:1998.
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