FIG 2-1-12 Taxiway Lead-On Light Configuration TBL 2-1-1 Runways With Approach Lights Lighting System No. of Int. Steps Status During Nonuse Period Approach Lights (Med. Int.) Approach Lights (Med. Int.) MIRL HIRL VASI Off Off Off or Low Off or Low Off Intensity Step Selected Per No. of Mike Clicks 3 Clicks 5 Clicks 7 Clicks Low Low Low Med High High NOTES: u Predetermined intensity step. L Low intensity for night use. High intensity for day use as determined by photocell control. TBL 2-1-2 Runways Without Approach Lights Lighting System MIRL HIRL LIRL VASIL REILL REILL No. of Int. Steps Status During Nonuse Period Off or Low Off or Low Off Off Off Off Intensity Step Selected Per No. of Mike Clicks 3 Clicks 5 Clicks 7 Clicks Low Step 1 or 2 On Med. Step 3 On High Step 5 On Off Low On/Off Med. On High NOTES: u Low intensity for night use. High intensity for day use as determined by photocell control. L The control of VASI and/or REIL may be independent of other lighting systems. Airport Lighting Aids 2-1-11