TP-Link TL-WR902AC v3

TP-Link TL-WR902AC v3 is a pocket-size dual-band (AC750) router based on MediaTek MT7628N + MT7650E.

ModelVersionSoCCPU MHzFlash MBRAM MBWLAN HardwareWLAN2.4WLAN5.0100M portsGbit portsModemUSB
TL-WR902ACv3MediaTek MT7628AN580864MediaTek MT7610EN, MediaTek MT7628ANb/g/na/n/ac1--1x 2.0

Specific values needed for tftp

FIXME Enter values for “FILL-IN” below

Bootloader tftp server IPv4 address 192.168.0.66
Bootloader MAC address (special) n/a
Firmware tftp image Rename openwrt-ramips-mt76x8-tplink_tl-wr902ac-v3-squashfs-tftp-recovery.bin to tp_recovery.bin and place it in tftp server directory.
TFTP transfer window FILL-IN seconds
TFTP window start approximately 8 seconds after power on
TFTP client required IP address n/a

The whole procedure- https://www.youtube.com/watch?v=LIM_2BLi91M&t=47s

A serial connection is located near the LAN port working at 3.3V and 115200N8.

□  LAN
|
•  VCC (3.3V)
•  GND
•  RX
•  TX

The device has an internal step down converter that is able to tolerate up to 6.5V. It is advised to keep a little safety margin. With the device fully powered up, wifi connected, ethernet unplugged, the power usage is ~1.2 watts. With a little wifi usage, power draw stays slightly below 2 watts.

With 4 SSIDs on 2,4 GHz band and 1 SSID on 5 GHz band powerconsumption is 2,1 watts on idle. With 4 SSIDs on 2,4 GHz band it is 1.7 watts idle. Values from this paragraph were measured with high accuracy ELV Energy master.

The USB port power is directly connected to the micro usb socket.

The device works reliably with an input voltage of 3.3 volts, it crashes reliably at ~2.9 volts.

Together with a USB LTE stick, the idle power usage is jumping between 1.5 and 2.5 watts, whereby little data transfer keeps it at 2.5-3 watts.

Up to 4 SSIDs are supported in 2,4 GHz band, maximum transmit power is 24 dBm (country code AU). Up to 8 SSIDs are supported in 5 GHz band, maximum transmit power is currently limited to only 12 dBm (tested country code AU and DE) due to a bug, see https://github.com/openwrt/mt76/issues/633 IEEE 802.1Q VLANs are supported. Device uses a integrated vlan capable switch.

Output of iw phy for all

Wiphy phy1 wiphy index: 1 max # scan SSIDs: 4 max scan IEs length: 2247 bytes max # sched scan SSIDs: 0 max # match sets: 0 Retry short limit: 7 Retry long limit: 4 Coverage class: 0 (up to 0m) Device supports AP-side u-APSD. Device supports T-DLS. Available Antennas: TX 0x1 RX 0x1 Configured Antennas: TX 0x1 RX 0x1 Supported interface modes: * IBSS * managed * AP * AP/VLAN * monitor * mesh point * P2P-client * P2P-GO Band 2: Capabilities: 0x17e HT20/HT40 SM Power Save disabled RX Greenfield RX HT20 SGI RX HT40 SGI RX STBC 1-stream Max AMSDU length: 3839 bytes No DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: No restriction (0x00) HT TX/RX MCS rate indexes supported: 0-7 VHT Capabilities (0x31800120): Max MPDU length: 3895 Supported Channel Width: neither 160 nor 80+80 short GI (80 MHz) RX antenna pattern consistency TX antenna pattern consistency VHT RX MCS set: 1 streams: MCS 0-9 2 streams: not supported 3 streams: not supported 4 streams: not supported 5 streams: not supported 6 streams: not supported 7 streams: not supported 8 streams: not supported VHT RX highest supported: 0 Mbps VHT TX MCS set: 1 streams: MCS 0-9 2 streams: not supported 3 streams: not supported 4 streams: not supported 5 streams: not supported 6 streams: not supported 7 streams: not supported 8 streams: not supported VHT TX highest supported: 0 Mbps Frequencies: * 5180 MHz [36] (12.0 dBm) * 5200 MHz [40] (12.0 dBm) * 5220 MHz [44] (12.0 dBm) * 5240 MHz [48] (12.0 dBm) * 5260 MHz [52] (12.0 dBm) * 5280 MHz [56] (12.0 dBm) * 5300 MHz [60] (12.0 dBm) * 5320 MHz [64] (12.0 dBm) * 5500 MHz [100] (12.0 dBm) * 5520 MHz [104] (12.0 dBm) * 5540 MHz [108] (12.0 dBm) * 5560 MHz [112] (12.0 dBm) * 5580 MHz [116] (10.0 dBm) * 5600 MHz [120] (12.0 dBm) * 5620 MHz [124] (12.0 dBm) * 5640 MHz [128] (12.0 dBm) * 5660 MHz [132] (12.0 dBm) * 5680 MHz [136] (12.0 dBm) * 5700 MHz [140] (12.0 dBm) * 5720 MHz [144] (12.0 dBm) * 5745 MHz [149] (12.0 dBm) * 5765 MHz [153] (12.0 dBm) * 5785 MHz [157] (12.0 dBm) * 5805 MHz [161] (12.0 dBm) * 5825 MHz [165] (12.0 dBm) * 5845 MHz [169] (disabled) * 5865 MHz [173] (disabled) valid interface combinations: * #{ IBSS } <= 1, #{ managed, AP, mesh point, P2P-client, P2P-GO } <= 8, total <= 8, #channels <= 1, STA/AP BI must match, radar detect widths: { 20 MHz (no HT), 20 MHz, 40 MHz, 80 MHz } HT Capability overrides: * MCS: ff ff ff ff ff ff ff ff ff ff * maximum A-MSDU length * supported channel width * short GI for 40 MHz * max A-MPDU length exponent * min MPDU start spacing max # scan plans: 1 max scan plan interval: -1 max scan plan iterations: 0 Supported extended features: * [ VHT_IBSS ]: VHT-IBSS * [ RRM ]: RRM * [ CQM_RSSI_LIST ]: multiple CQM_RSSI_THOLD records * [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211 * [ TXQS ]: FQ-CoDel-enabled intermediate TXQs * [ AIRTIME_FAIRNESS ]: airtime fairness scheduling * [ AQL ]: Airtime Queue Limits (AQL) * [ SCAN_RANDOM_SN ]: use random sequence numbers in scans * [ SCAN_MIN_PREQ_CONTENT ]: use probe request with only rate IEs in scans * [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support * [ DEL_IBSS_STA ]: deletion of IBSS station support * [ SCAN_FREQ_KHZ ]: scan on kHz frequency support * [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support Wiphy phy0 wiphy index: 0 max # scan SSIDs: 4 max scan IEs length: 2257 bytes max # sched scan SSIDs: 0 max # match sets: 0 Retry short limit: 7 Retry long limit: 4 Coverage class: 0 (up to 0m) Device supports AP-side u-APSD. Device supports T-DLS. Available Antennas: TX 0x3 RX 0x3 Configured Antennas: TX 0x3 RX 0x3 Supported interface modes: * IBSS * managed * AP * AP/VLAN * monitor * mesh point * P2P-client * P2P-GO Band 1: Capabilities: 0x1fe HT20/HT40 SM Power Save disabled RX Greenfield RX HT20 SGI RX HT40 SGI TX STBC RX STBC 1-stream Max AMSDU length: 3839 bytes No DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: No restriction (0x00) HT TX/RX MCS rate indexes supported: 0-15 Frequencies: * 2412 MHz [1] (24.0 dBm) * 2417 MHz [2] (24.0 dBm) * 2422 MHz [3] (24.0 dBm) * 2427 MHz [4] (24.0 dBm) * 2432 MHz [5] (24.0 dBm) * 2437 MHz [6] (24.0 dBm) * 2442 MHz [7] (24.0 dBm) * 2447 MHz [8] (24.0 dBm) * 2452 MHz [9] (24.0 dBm) * 2457 MHz [10] (24.0 dBm) * 2462 MHz [11] (24.0 dBm) * 2467 MHz [12] (24.0 dBm) * 2472 MHz [13] (24.0 dBm) * 2484 MHz [14] (disabled) valid interface combinations: * #{ IBSS } <= 1, #{ managed, AP, mesh point, P2P-client, P2P-GO } <= 4, total <= 4, #channels <= 1, STA/AP BI must match HT Capability overrides: * MCS: ff ff ff ff ff ff ff ff ff ff * maximum A-MSDU length * supported channel width * short GI for 40 MHz * max A-MPDU length exponent * min MPDU start spacing max # scan plans: 1 max scan plan interval: -1 max scan plan iterations: 0 Supported extended features: * [ RRM ]: RRM * [ CQM_RSSI_LIST ]: multiple CQM_RSSI_THOLD records * [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211 * [ TXQS ]: FQ-CoDel-enabled intermediate TXQs * [ AIRTIME_FAIRNESS ]: airtime fairness scheduling * [ AQL ]: Airtime Queue Limits (AQL) * [ SCAN_RANDOM_SN ]: use random sequence numbers in scans * [ SCAN_MIN_PREQ_CONTENT ]: use probe request with only rate IEs in scans * [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support * [ DEL_IBSS_STA ]: deletion of IBSS station support * [ SCAN_FREQ_KHZ ]: scan on kHz frequency support * [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support


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  • Last modified: 2022/07/15 06:39
  • by tmomas