For CCTV and Other Storage-Intensive Applications
The BL51S is a maintenance-free fanless box computer designed for embedded storage systems, e.g., for CCTV applications or content servers. It offers two external, lockable SATA shuttles with a one key fits all system and hot-plugging support.

Robust Communication
At the front the rugged BL51S provides five Gigabit Ethernet interfaces on M12 X-coded connectors. Four ports share one Gigabit Ethernet port from the chipset via a switch and support Power-over-Ethernet. The fifth port is used exclusively as a Gigabit Ethernet uplink.

One PCI Express Mini Card slot with two SIM card slots offers the possibility to implement a wide range of wireless communication functions. This includes mobile service standards up to LTE (4G) and derivates, WLAN IEEE 802.11 and derivates as well as positioning systems GPS or GLONASS.

Fanless Operation for Mobility
The BL51S is designed for fanless operation at temperatures from -40 °C to +70 °C (+85 °C for up to 10 minutes), its special aluminum housing with cooling fins serves as a heat sink for the internal electronics and in this way provides conduction cooling.
The system comes with its own integrated class S2 wide-range power supply with 24 V DC nominal input voltage and a power consumption of 40 W. It complies with EN 50155 and ISO 7637-2 (E-mark for automotive). The power can be switched on and off using an ignition signal on the power connector, and a run-down time after switching off the ignition signal can be adjusted by software.

Solid Processing Performance & I/O
The BL51S features an Intel Atom E3900 series CPU with low power dissipation and scalability in performance and memory.
The box PC features up to 8 GB DDR3 SDRAM, and includes eMMC storage and an SD card slot. It supports one DisplayPort interface with a resolution of 4096 × 2160. In addition, a multitude of other I/O is available at the front, including two USB 2.0 and variable slots for legacy serial I/O, e.g., RS232, MVB or CAN bus.

The combination of CPU options and configurable external interfaces makes for an extremely flexible system design that can quickly be tailored to a vast number of applications.