IBM 2109 Service Guide - Page 21
Front panel, Control buttons
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Front panel Figure 5. Dual SC fiber-optic plug connector SJ000044 The connectors are keyed and must be correctly aligned before they are inserted into the GBIC-module connector. In most cases, one of the two connector plugs is a different color to aid in proper connector alignment. Note: Remove the protective plug from the GBIC. Do not force the fiber-optic plug into the GBIC module as you may damage the connector, the GBIC module, or both. Make certain that the fiber surface is clean and free of dust or debris before inserting the connector into a GBIC module. Figure 6 shows the front panel buttons. Display Up button Enter button Tab/Esc button Fiber Channel Switch 2109 S16 Down button RJ-45 10 BASE-T connection Figure 6. Front panel functionality SJ000045 Control buttons Table 2 on page 6 lists the primary control button functions. The function of the button changes depending on the menu level. Buttons either control navigating through the menus or they increment and decrement numeric values. Chapter 1. Introduction 5