Avaya 4900 Series Installation Job Aid page 11

Figure 4: Rear-mounted rack bracket installation
For four-post equipment rack installations, an optional four-post rack mounting kit (sold
separately) is available that includes adjustable rear brackets. For more information, see
Installing Avaya Ethernet Routing Switch 4900 Series, NN47212-301.
June 2016 Installation Job Aid for Avaya Ethernet Routing Switch 4900 Series (NN47212-302,
ver 02.01) 11