Figure 1. OPT100 front parts with Wall Mounting Set 1 Status LEDs 2 OPT100 DGA Monitor 3 Door lock (3 pcs) 4 Power supply unit 5 Door lock Figure 2. OPT100 rear parts with Wall Mounting Set 1 Installation beam (upper) 2 Weather shield 3 Installation beam (lower) 4 Cable glands for DGA Monitor 5 Cradle for power supply unit 6 Cable glands for power supply unit