The BID/2370 ECU was developed as part of the UK MOD Common-good High-grade INFOSEC Module (Programmable) or CHIM(P) programme. It is based on a modular system architecture that features programmability, module reuse, full UK sovereignty, and scalability to accommodate a wide range of cryptographic equipment and/or applications. The BID/2370 provides functionality for legacy high-speed link and Internet Protocol (IP) packet encryption (i.e., High Assurance IP Encryptor or HAIPE) applications. The Rack-Mount ECU can simultaneously store four IP and Link Crypto applications (HAIPIS V1.3.5, IP-UKEO, High-Speed Link, and BID/1650). Applications are selectable via menu entries from the web-based management interface. The Rack-Mount ECU is field software re-programmable and can be programmed (software and firmware components) to provide future algorithm support, including a software-only upgrade to HAIPE version 3. Contained within the BID/2370 is the SierraTM II Core Cryptographic Module (CCM). The CCM contains cryptographic algorithms and functions in conjunction with integrated Red, Black, and management processing capabilities to maximize portability. The CCM also contains embedded network and link interface functions to allow connectivity into Ethernet or serial-based applications with the addition of the appropriate interface circuits. The CCM was independently evaluated by Communications Electronic Security Group (CESG) for use in other embedded applications. The BID/2370 ECU and CCM are CESG-certified to pass UK EYES ONLY COMSEC traffic up through TOP SECRET CODEWORD level. The Rack-Mount ECU also supports reverse tunneling. The BID/2370 has a product form factor of 1U (19-inch rack mount). The Rack-Mount ECU product has its own internal power supply to support various AC power sources and typically consumes 20 watts. A backup battery is included to retain the cryptographic key variables and algorithms. Sierra II was developed by Harris to address all of the cryptographic requirements of the JTRS and National Security Agency (NSA) Crypto Modernization program, including the requirement for programmability. Sierra II's software programmability provides a low-cost migration path for future upgrades (HAIPE standards evolution) to embedded communications equipment without the logistics and cost burdens associated with updating legacy cryptographic hardware.