Arris RAC2V1A

abgn+ac (AC2600)
802.11ac Wave 2 Wireless Router
WikiDevi.wi-cat.ru	Arris RAC2V1A
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	Arris RAC2V1A
Model Part Number	TR4400-AC
FCC ID (fcc.io)	UIDTR4400, H8NRAC2V1K
FCC ID (fcc.report)	UIDTR4400, H8NRAC2V1K
Board ID	CAU00N0E-1.0MM
Type	wireless router
CPU1 Y	Qualcomm IPQ8065
CPU1 Type	ARMv7-A
CPU1 Speed	1.7 GHz ( 2 cores )
Flash1 Chip	Macronix MX30UF4G28AB-TI
Flash1 Size	512 MiB 536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br />
RAM1 Size	1 GiB 1,024 MiB <br />1,073,741,824 B <br />8,388,608 Kib <br />1,048,576 KiB <br />8,192 Mib <br />
RAM1 Chip	Nanya NT5CC256M16DP-DI x 2
ETH chip1	Qualcomm IPQ8065
ETH chip2	Atheros Model?
Switch	Qualcomm Atheros QCA8337
Ethernet Port Count	1-1GbE-WAN 4-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab
802dot11 OUI: none specified
Stock bootloader	U-Boot
Expansion IF types	USB 3.0, Mini PCIe
Mini PCIe slots	2
USB ports	1
USB Hub Compatible	Untested
Power	12 VDC, 2.5 A
Connector type	barrel
Serial Port (UART)	yes, 3.3V TTL, (115200 8N1)
Flags: MU-MIMO, DFS
Additional chips 2.4GHz RF Power Amplifier Module;Skyworks;SKY2623L;;3; 5GHz RF Power Amplifier Module;RFMD;RFPA5542;;4;
Other
Manuf/OEM/ODM	SerComm
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs)
Retail
FCC approval date	05 December 2017
ASIN	B082F3BCTV
Country of manuf	China
Physical
Dimensions	12 x 6 x 6 inches
Weight	2 pounds
Radio 1
Radio1 module	Askey WLL4230 Dual
Radio1 module IF	Mini PCIe (oversized)
Chip1	Qualcomm Atheros QCA9984
Wireless interface OUI	none specified
Antenna Connector Type	MHF4
MIMO status	4x4:4
Wireless Standard	IEEE 802.11b/g/n
n-QAM	up to 800 Mbps
802.11n	up to 600 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
WiFi Operating Frequency	2.4 GHz
Radio 2
Radio2 module	Askey WLL4230 Dual
Radio2 module IF	Mini PCIe (oversized)
Chip1	Qualcomm Atheros QCA9984
Wireless interface OUI	none specified
Antenna Connector Type	MHF4
MIMO status	4x4:4
Wireless Standard	IEEE 802.11a/n/ac
802.11ac	up to 1733 Mbps
802.11n	up to 300 Mbps
802.11a	up to 54 Mbps
WiFi Operating Frequency	5 GHz
FCC ID Askey WLL4230 Dual H8NRAC2V1K UIDTR4400   FCC ID Askey RAC2V1K H8NRAC2V1K Askey WLL4230 Dual H8NRAC2V1K UIDTR4400

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

For a list of all currently documented Arris devices with specifications, see Arris.

• 800 Mbps - 4SS 2.4GHz 802.11n (40MHz chan., 256-QAM),

• 1733 Mbps - 4SS 5GHz 802.11ac (80MHz chan.) = AC2600 class

Overview

Also known as the Arris TR4400-AC and includes the SAC2V1A 1GB RAM variant.

The Arris TR4400 v2 is a dual band router provided by Spectrum to customers as the "Wave 2" with model number RAC2V1A. It uses a Qualcomm IPQ8065 SoC with 512 MB RAM and 256 MB NAND flash. There is also a SAC2V1A model variant for the same FCCID and WiFi Alliance certification (WFA71730) but with 1 GB RAM.

RAC2V1A OEM firmware uses OpenWrt Barrier Breaker r1121 build (other reported builds: 1418, 1602, 1782, 1806). The default radio SSID's are MySpectrumWifi{last 2 MAC characters}-2G and -5G. The SAC2V1A is based on Chaos Calmer 15.05.1 (r35193) and the back label references a QR code to use the Spectrum app for setup. The default radio SSID nomenclature changes to SpectrumSetup-{last 2 MAC characters} and OpenWrt installation is the same for the hardware and SSH access, but requires different steps using the serial port. It does not currently support DSA (post-23.05 releases) and support of the full 1GB RAM requires a custom OpenWrt build.

• Wi-Fi Certified : WFA71730 (as of 05/09/2017)

DFS support was added with an FCC Class II Permissive Change request on 12/20/2017.
This device was under short-term confidentiality, but that expired 02/20/2018 ⚠.

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)
On the OpenWrt Wiki
On the OpenWrt Forum

Target: ipq806x
Subtarget: generic
Package architecture: arm_cortex-a15_neon-vfpv4
Supported Since Commit
Support started version: 22.03.0
Current supported version: 24.10.4

LAN Hardware: Qualcomm Atheros QCA8337
WLAN Hardware: Qualcomm Atheros QCA9983, Qualcomm Atheros QCA9984
WLAN Comment: single board with miniPCIe connector
Installation method(s):
See devicepage, see git-commit
Recovery method(s):
U-Boot TFTP + serial recovery
Comment:
Provided by Spectrum to subscribers under the model number RAC2V1A.

git • >>

ipq806x: add support for Arris TR4400 v2 / RAC2V1A Hardware specs: SoC: Qualcomm IPQ8065 (dual core Cortex-A15) RAM: 512 MB DDR3 Flash: 256 MB NAND, 32 MB NOR WiFi: QCA9983 2.4 GHz, QCA9984 5 GHz Switch: QCA8337 Ethernet: 5x 10/100/1000 Mbit/s USB: 1x USB 3.0 Type-A Buttons: WPS, Reset Power: 12 VDC, 2.5 A Ethernet ports: 1x WAN: connected to eth2 4x LAN: connected via the switch to eth0 and eth1 (eth0 is disabled in OEM firmware) MAC addresses (OEM and OpenWrt): fw_env @ 0x00 d4:ab:82:??:??:?a LAN (eth1) fw_env @ 0x06 d4:ab:82:??:??:?b WAN (eth2) fw_env @ 0x0c d4:ab:82:??:??:?c WLAN 2.4 GHz (ath1) fw_env @ 0x12 d4:ab:82:??:??:?d WLAN 5 GHz (ath0) fw_env @ 0x18 d4:ab:82:??:??:?e OEM usage unknown (eth0 in OpenWrt) OID d4:ab:82 is registered to: ARRIS Group, Inc., 6450 Sequence Drive, San Diego CA 92121, US More info: https://openwrt.org/inbox/toh/arris/tr4400_v2 IMPORTANT: This port requires moving the 'fw_env' partition prior to first boot to consolidate 70% of the usable space in flash into a contiguous partition. 'fw_env' contains factory-programmed MAC addresses, SSIDs, and passwords. Its contents must be copied to 'rootfs_1' prior to booting via initramfs. Note that the stock 'fw_env' partition will be wiped during sysupgrade. A writable 'stock_fw_env' partition pointing to the old, stock location is included in the port to help rolling back this change if desired. Installation: - Requires serial access and a TFTP server. - Fully boot stock, press ENTER, type in: mtd erase /dev/mtd21 dd if=/dev/mtd22 bs=128K count=1 | mtd write - /dev/mtd21 umount /config && ubidetach -m 23 && mtd erase /dev/mtd23 - Reboot and interrupt U-Boot by pressing a key, type in: set mtdids 'nand0=nand0' set mtdparts 'mtdparts=nand0:155M@0x6500000(mtd_ubi)' set bootcmd 'ubi part mtd_ubi && ubi read 0x44000000 kernel && bootm' env save - Setup TFTP server serving initramfs image as 'recovery.bin', type in: set ipaddr 192.168.1.1 set serverip 192.168.1.2 tftpboot recovery.bin && bootm - Use sysupgrade to install squashfs image.

See also

• Arris RAC2V1A - Arris TR4400-AC (SerComm)
• Askey RAC2V1K - Askey RT4230W (Askey)
• Sagemcom RAC2V1S - Sagemcom F@ST 5280
• Charter RAX1V1K - Askey RT5000W - 802.11ax DBDC Router
• Askey RT4220W • Cube Router - 802.11ac 2x2 Router • PPage
• Askey RT4230W • Puma Router - 802.11ac 4x4 Router • PPage