Does the WLAN module support dual bands

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In V200R002C02 and earlier versions, the device supports only the 2.4 GHz band.

Starting from V200R003C00, the AR201VW-P and AR207VW support both 2.4 GHz and 5 GHz radios but cannot work on the two radios simultaneously.

Starting from V200R005C30, the AR510 series can work on 2.4 GHz and 5 GHz radios simultaneously.

Starting from V200R006C10, the AR503GW-LM7 can work on 2.4 GHz and 5 GHz radios simultaneously.

Other related questions:
Whether the WLAN supports the concurrent dual-band
From V200R001C00 to V200R002C02, the device supports only the 2.4G frequency band but does not support the 5G frequency band. Starting from V200R003C00, the AR201VW-P and AR207VW support both 2.4 GHz and 5 GHz frequency bands but cannot work on the two frequency bands simultaneously. Starting from V200R005C30, the AR510 series can work on 2.4 GHz and 5 GHz frequency bands simultaneously. Starting from V200R006C10, the AR503GW-LM7 can work on 2.4 GHz and 5 GHz frequency bands simultaneously.

Backup of dual power slots on S series switches
Support of power slots on S series switches is as follows: 1. The switches that have PWR in their names (except the S2700-9TP-PWR-EI, S2750-20TP-PWR-EI-AC, S2750-28TP-PWR-EI-AC, S2751-28TP-PWR-EI-AC, S5700-PWR-LI, S5720-PWR-LI, and S5720S-PWR-LI series) support dual PoE power modules. 2. The switches that have C or PC in their names support dual power modules. 3. The S5720-SI series support dual power modules (except the S5720-14X-PWH-SI-AC, S5720-28X-SI-24S-AC, S5720-28X-SI-24S-SC, and S5721-28X-SI-24S-AC). When a switch has dual power modules installed: - For a PoE switch, the two power modules work in 1+1 redundancy mode to provide power for the chassis and provide power for PDs in load balancing mode. - For a non-PoE switch, the power modules provide power for the chassis in 1+1 redundancy mode. You can use Hardware Query Tool to query details.

Is the number of access users in dual-band mode twice the number of access users in single-band mode
If there are sufficient system resources, the number of access users in dual-band mode is twice the number of access users in single-band mode. Limited by system resources, the number of access users in dual-band mode may not be twice the number of access users in single-band mode.

Does TE40 support dual streams
TE40s support dual streams.

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