ASUS RT-AC42U

From TechInfoDepot
Jump to navigationJump to search
abgn+ac
AC1700 Dual-Band Wi-Fi Gigabit Router
RT-AC42U front.png
Homepage
Wikipedia
WikiDevi.wi-cat.ru
Platform
BrandModelRev
ASUS RT-AC42U A1
FCC ID
IC ID
Type
wireless router
Wireless class
AC1700
CPU1
Qualcomm IPQ4019
CPU1 Speed
717 MHz   ( 4 cores )
Flash1 Chip
Macronix MX30LF1G18AC-TI
Flash1 Size
128 MiB134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br />
RAM1 Size
256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br />
RAM1 Chip
Nanya NT5CC128M16IP-DI
ETH chip1
Qualcomm IPQ4019
Switch
Qualcomm Atheros QCA8075
Ethernet Port Count
1-1GbE-WAN
4-1GbE-LAN

802dot11 OUI: 10:7B:44 (1 E, 4 W), 38:D5:47 (4 E, 4 W), AC:9E:17 (10 E, 10 W)
Ethernet OUI: 10:7B:44 (1 E, 4 W), 38:D5:47 (4 E, 4 W), AC:9E:17 (10 E, 10 W)

Stock bootloader
U-Boot
Stock FW OS
Linux
Expansion IF types
USB 3.0
USB ports
1
USB Hub Compatible
Untested
Power
12 VDC, 2 A
Connector type
barrel
Serial Port (UART)
yes, 4-pin header
Flags
Wave2, MU-MIMO, 256QAM

Additional chips
2.4GHz Power Amplifier IC;Richwave;RTC6649EX;75E, 49EX, 4551;2;
5GHz Power Amplifier IC;Richwave;RTC6665;065F, E601, 063;2;

Other
Default IP address
192.168.50.1
Default login user
admin
Default login password
admin
Default SSID
ASUS, ASUS_5G
Manuf/OEM/ODM
Arcadyan WG911DA AC24-ASU
Retail
FCC approval date 02 August 2017
ASIN B07628HLTM Flag of the United States.svg
Country of manuf China
Radio 1
Chip1
Qualcomm IPQ4019
Wireless interface OUI
10:7B:44,38:D5:47,AC:9E:17
Antenna Connector Type
U.FL
MIMO status
2x2:2
Wireless Standard
IEEE 802.11b/g/n
N-QAM
up to 400 Mbps
802.11n
up to 300 Mbps
802.11g
up to 54 Mbps
802.11b
up to 11 Mbps
WiFi Operating Frequency
2.4 GHz
Radio 2
Chip1
Qualcomm Atheros QCA9984
Wireless interface OUI
10:7B:44,38:D5:47,AC:9E:17
Antenna Connector Type
U.FL
MIMO status
4x4:3
Wireless Standard
IEEE 802.11a/n/ac
802.11ac
up to 1300 Mbps
802.11n
up to 450 Mbps
802.11a
up to 54 Mbps
WiFi Operating Frequency
5 GHz
 FCC ID
ASUS RT-ACRH17MSQ-RTHD00

For a list of all currently documented Qualcomm chipsets with specifications, see Qualcomm.
For a list of all currently documented Qualcomm Atheros (QCA) chipsets with specifications, see Qualcomm Atheros.

Overview[edit]

1300 Mbps - 3SS 5GHz 802.11ac (80MHz chan.),
400 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = 1700 Mbps class

Links of Interest[edit]

Forum threads[edit]

Confirms 1.7Gbps 4x4 5GHz link rate

Flashing[edit]

Upgrading[edit]

Reverting[edit]

JTAG-Serial Info[edit]

USB Info[edit]

vlan Info[edit]

Pictures[edit]

Retail Images

Notes[edit]

FCC info[edit]

"ASUS RT-AC42U REV 1.10" is silkscreened on the board in the FCC photos.

A sticker on the flash chip suggests the Arcadyan WG911DAAC24-ASU model.

See also: Arcadyan and ASUS
Equipment: Wireless-AC1700 Dual Band Gigabit Router
Brand Name: ASUS; Model No.: FCC Report
Default settings are per the FCC Label Sample.

Despite having hardware capable of implementing three radios, this device

appears to only use the 2.4GHz radio of the IPQ4019 configured as 2x2.

User Manual says, "wireless-AC speeds up to 1400Mbps on the 5GHz band

& 300Mbps on the 2.4GHz band concurrently". This is likely inaccurate.

RF Exposure document shows that :

  • two antennas are used for the 2.4 GHz radio (ANT 0+1) and
  • four antennas are used for the 5 GHz radio (ANT 0+1+2+3).

PSU[edit]

Power Adapter: 100-240VAC ~50/60 Hz 12VDC/2A

  • Power Adapter: SGE S24B72-120A200-C4
  • S24B11-120A200-Y4
  • Power Adapter: SFE F24W5-120120SPAU
  • Power Adapter: APD WA-24Q12FU

Hardware Modification[edit]

See also[edit]