Huawei AirEngine 9700D-S is a Distributed Access Point (DAP) in Zero-Roaming Distributed Wi-Fi Solution. The DAP complies with the Wi-Fi 6 (802.11ax) standard and can deliver services simultaneously on 2.4 GHz (8x8:4) and 5 GHz (8x8:8) frequency bands. It has one 10GE optical port and two 2.5GE electrical ports in the uplink and eight hybrid ports that can connect to eight downlink ORUs. It also provides multiple RF ports for connecting to extranet APs and IoT base stations. Typically, the DAP is deployed in the ELV room of a hospital ward area and expands wireless signals to rooms through hybrid cables, Optical Radio Units (ORUs), and Antenna Units (AUs), delivering wireless access services to hospital tablets, mobile ward-round, and IoT terminals. Zero-Roaming Distributed Wi-Fi Solution consists of the DAP, ORUs, and AUs. The DAP must work with ORUs (AirEngine 5760-11DH) and AUs, but cannot work independently.