Designed for smaller service providers or smaller-scale services and applications, Oracle's Acme Packet 3820 delivers many of the same functions and features commonly found on Oracle's high-end SBC platforms. The front of Oracle's Acme Packet 3820 features three air intake fans, status light-emitting diodes (LEDs), a single RJ-45 serial console interface, and a pinhole used for hard system resets. The rear of Oracle's Acme Packet 3820 includes a single network interface unit (NIU) slot as well as slots used for power supply units. Acme Packet 3820 NIU configurations address a wide range of requirements.