Huawei controller, UMPT and interface boards

Two naming systems appear here. Controller boards use functional abbreviations — GTMU is a GSM transmission and management unit, EXOU and EGPU are interface and processing units, GSCC is a signalling and control board, EOW an engineering order wire. Router boards use the CR prefix followed by chassis and function codes, with LPU and LPUI denoting line processing units and the trailing number giving forwarding capacity. As everywhere in Huawei's catalogue, the eight-digit code beginning 02 or 03 is the true ordering reference.

Name the platform before the board — BSC6900, NE40E, CX600 and the MA-series access shelves are unrelated, and a board name alone is not sufficient to identify an item across them. Give the chassis model and slot, the software release, and for router line cards the interface type and count you need. Where you are replacing a failed board, the eight-digit code on the label is the fastest and least error-prone thing to send us.

BSC6900 hardware is end-of-sale and end-of-support, available refurbished only. Router line cards vary — older LPU generations are surplus-market items while later LPUI variants remain in circulation. Export screening applies as it does to all Huawei equipment.