JCG JHR-N825R
bgn (N300) | |
---|---|
300Mbps High Power Wireless Router | |
Homepage | |
3rd Party Firmware | |
dd-wrt | |
OpenWrt | |
Tomato any flavor |
Incompatible |
Gargoyle |
Status Unknown |
Platform | |
Brand • Model • Rev |
JCG JHR-N825R |
FCC ID | |
Type |
wireless router |
CPU1 |
Ralink RT3052 |
CPU1 Type |
MIPS 24KEc |
CPU1 Speed |
384 MHz |
Flash1 Chip |
Spansion S29GL032N90TFI04 |
Flash1 Size |
4 MiB4,194,304 B <br />32,768 Kib <br />4,096 KiB <br />32 Mib <br />0.00391 GiB <br /> |
RAM1 Size |
32 MiB33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br /> |
RAM1 Chip |
SK hynix H57V2562GTR-60C |
ETH chip1 |
Ralink RT3052 |
Switch |
Ralink RT3052 |
Ethernet Port Count |
1-100MbE-WAN 4-100MbE-LAN |
Wired Standard |
IEEE 802.3i/3u |
Stock bootloader |
U-Boot |
Expansion IF types |
none specified |
Power |
12 VDC, 1 A |
Connector type |
barrel |
Serial Port (UART) |
yes, 4-pin header, unpopulated |
JTAG Port |
yes |
Flags: schematics | |
Other | |
Default SSID: JCG-XXXXXX (2 addl. devices) | |
Manuf/OEM/ODM | |
3rd Party Firmware Support | |
Retail | |
Availability | End of Life |
FCC approval date | 12 July 2012 |
UPC |
669954019263 (UPC DB, On eBay) |
ASIN |
B008EP00BC ![]() |
Country of manuf | China |
Radio 1 | |
Chip1 |
Ralink RT3052 |
Wireless interface OUI |
00:E0:4B |
Antenna Connector Type |
non-removable |
MIMO status |
2x2:2 |
Wireless Standard |
IEEE 802.11b/g/n |
802.11n |
up to 300 Mbps |
802.11g |
up to 54 Mbps |
802.11b |
up to 11 Mbps |
WiFi Operating Frequency |
2.4 GHz |
For a list of all currently documented Ralink chipsets with specifications, see Ralink.
For a list of all currently documented JCG device with specifications, see JCG.
- • 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = N300 class
Overview
The FCC test report lists the following additional models as covered by this FCC ID..
- JCG JHR-N815R
- JCG JHR-N825R
- JCG JHR-N835R
- JCG JHR-N845R
- JCG JHR-N855R
- JCG JHR-N865R
- JCG JHR-N875R
- JCG JHR-N885R
- JCG JHR-N895R
Default settings are per the FCC label.
- The default SSID pattern appears to be JCG-XXXXXX where XXXXXX is the last three octets of the BSSID (upper case letters).
Per the FCC documents (and supporting WiGLE data), the 00:E0:4B OUI is presumed to be used.
Links of Interest
Flashing
![]() | NOTE: During configuration or flashing a device, the only things that should be hooked to the device is the computer and power. |
Flashing OpenWrt
![]() | This device is NOT RECOMMENDED for future use with OpenWrt due to low flash/ram. DO NOT BUY DEVICES WITH 4MB FLASH / 32MB RAM if you intend to flash an up-to-date and secure OpenWrt version onto it! See 4/32 warning for details. |
![]() | This device does not have sufficient resources (flash and/or RAM) to provide secure and reliable operation. This means that even setting a password or changing simple network settings might not be possible any more, rendering the device effectively useless. See OpenWrt on 4/32 devices what you can do now. |
![]() | OpenWrt support for this device has ended in 2022. 19.07.10 was the last official build for 4/32 devices. |
On the OpenWrt Wiki
OpenWrt Target: ramips
OpenWrt Subtarget: rt305x
OpenWrt Package architecture: mipsel_24kc
Support started version: 17.01.0
Current supported version: 19.07.10
Comment:
Image build disabled in master with commit d7d46da938e3
Please insert instructions here
JTAG-Serial Info
JTAG
JTAG Pinouts
On SMD resistors: R21 (TDO), R23 (TMS), R22 (TDI), R24 (TCLK), R27 (TRST)
Serial
Serial Pinouts
VCC, TX, GND, RX
boot log, normal mode |
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U-Boot 1.1.3 (Aug 10 2012 - 17:24:21) Board: Ralink APSoC DRAM: 32 MB relocate_code Pointer at: 81fac000 config usb.... Set info->start[0]=BF000000 flash_protect ON: from 0xBF000000 to 0xBF01F3DF flash_protect ON: from 0xBF030000 to 0xBF030FFF *** Warning - bad CRC, using default environment ============================================ Ralink UBoot Version: 3.6.0.0 -------------------------------------------- ASIC 3052_MP2 (Port5<->None) DRAM component: 256 Mbits SDR DRAM bus: 16 bit Total memory: 32 MBytes Flash component: NOR Flash Date:Aug 10 2012 Time:17:24:21 ============================================ icache: sets:256, ways:4, linesz:32 ,total:32768 dcache: sets:128, ways:4, linesz:32 ,total:16384 ##### The CPU freq = 384 MHZ #### estimate memory size =32 Mbytes ## Booting image at bf050000 ... Image Name: Linux Kernel Image Created: 2012-08-10 9:23:52 UTC Image Type: MIPS Linux Kernel Image (lzma compressed) Data Size: 3560775 Bytes = 3.4 MB Load Address: 80000000 Entry Point: 80292000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK No initrd ## Transferring control to Linux (at address 80292000) ... ## Giving linux memsize in MB, 32 Starting kernel ... LINUX started... THIS IS ASIC Linux version 2.6.21 (root@devsrv2) (gcc version 3.4.2) #592 Fri Aug 10 17:23:48 CST 2012 The CPU frequency set to 384 MHz CPU revision is: 0001964c Determined physical RAM map: memory: 02000000 @ 00000000 (usable) Built 1 zonelists. Total pages: 8128 Kernel command line: console=ttyS1,57600n8 root=/dev/mtdblock5 Primary instruction cache 32kB, physically tagged, 4-way, linesize 32 bytes. Primary data cache 16kB, 4-way, linesize 32 bytes. Synthesized TLB refill handler (20 instructions). Synthesized TLB load handler fastpath (32 instructions). Synthesized TLB store handler fastpath (32 instructions). Synthesized TLB modify handler fastpath (31 instructions). Cache parity protection disabled cause = 40808000, status = 11000000 PID hash table entries: 128 (order: 7, 512 bytes) calculating r4koff... 00177000(1536000) CPU frequency 384.00 MHz Using 192.000 MHz high precision timer. Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) Memory: 29644k/32768k available (2339k kernel code, 3124k reserved, 288k data, 116k init, 0k highmem) Mount-cache hash table entries: 512 NET: Registered protocol family 16 NET: Registered protocol family 2 Time: MIPS clocksource has been installed. IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 1024 (order: 1, 8192 bytes) TCP bind hash table entries: 1024 (order: 0, 4096 bytes) TCP: Hash tables configured (established 1024 bind 1024) TCP reno registered ralink flash device: 0x1000000 at 0x1f000000 Ralink SoC physically mapped flash: Found 1 x16 devices at 0x0 in 16-bit bank Amd/Fujitsu Extended Query Table at 0x0040 number of CFI chips: 1 cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness. Creating 7 MTD partitions on "Ralink SoC physically mapped flash": 0x00000000-0x00400000 : "ALL" 0x00000000-0x00030000 : "Bootloader" 0x00030000-0x00040000 : "Config" 0x00040000-0x00050000 : "Factory" 0x00050000-0x00121587 : "Kernel" mtd: partition "Kernel" doesn't end on an erase block -- force read-only 0x00121587-0x01000000 : "RootFS" mtd: partition "RootFS" extends beyond the end of device "Ralink SoC physically mapped flash" -- size truncated to 0x2dea79 mtd: partition "RootFS" doesn't start on an erase block boundary -- force read-only 0x00050000-0x01000000 : "Kernel_RootFS" mtd: partition "Kernel_RootFS" extends beyond the end of device "Ralink SoC physically mapped flash" -- size truncated to 0x3b0000 squashfs: version 3.2-r2 (2007/01/15) Phillip Lougher squashfs: LZMA suppport for slax.org by jro io scheduler noop registered (default) Ralink gpio driver initialized HDLC line discipline: version $Revision: 1.1.1.1 $, maxframe=4096 N_HDLC line discipline registered. Serial: 8250/16550 driver $Revision: 1.8 $ 2 ports, IRQ sharing disabled serial8250: ttyS0 at I/O 0xb0000500 (irq = 37) is a 16550A serial8250: ttyS1 at I/O 0xb0000c00 (irq = 12) is a 16550A loop: loaded (max 8 devices) rdm_major = 253 eth2 mii.o query= phy_id:0, address:1 retval:7849 Ralink APSoC Ethernet Driver Initilization. v2.1 256 rx/tx descriptors allocated, mtu = 1500! MAC_ADRH -- : 0x000000e0 MAC_ADRL -- : 0x4b9bf847 PROC INIT OK! IMQ starting with 4 devices... IMQ driver loaded successfully. Hooking IMQ before NAT on PREROUTING. Hooking IMQ after NAT on POSTROUTING. PPP generic driver version 2.4.2 PPP BSD Compression module registered NET: Registered protocol family 24 PPPoL2TP kernel driver, V0.17 PPTP driver version 0.8.1 block2mtd: version $Revision: 1.1.1.1 $ GACT probability NOT on netem: version 1.2 u32 classifier Performance counters on input device check on Actions configured nf_conntrack version 0.5.0 (256 buckets, 2048 max) ip_tables: (C) 2000-2006 Netfilter Core Team, Type=Restricted Cone ipt_time loading TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 10 NET: Registered protocol family 17 802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com> All bugs added by David S. Miller <davem@redhat.com> VFS: Mounted root (squashfs filesystem) readonly. Freeing unused kernel memory: 116k freed init started: BusyBox v1.12.1 (2012-08-10 17:22:49 CST) Bad inittab entry at line 2 Algorithmics/MIPS FPU Emulator v1.5 devpts: called with bogus options mount: mounting none on /proc/bus/usb failed: No such file or directory ------------------------------------------------- Password for 'admin' changed phy_tx_ring = 0x013f4000, tx_ring = 0xa13f4000 phy_rx_ring0 = 0x013f5000, rx_ring0 = 0xa13f5000 MAC_ADRH -- : 0x000000e0 MAC_ADRL -- : 0x4b9bf847 CDMA_CSG_CFG = 81000007 GDMA1_FWD_CFG = 1710000 switchTableDel: done! switchTableDel: done! switchTableDel: done! switchTableDel: done! switchTableDel: done! eth2 mii.o query= phy_id:1, address:4 retval:5e1 eth2 mii.o query= phy_id:1, address:0 retval:3100 eth2 mii.o query= phy_id:1, address:5 retval:0 eth2.2: dev_set_promiscuity(master, 1) device eth2 entered promiscuous mode device eth2.2 entered promiscuous mode eth2 mii.o query= phy_id:1, address:4 retval:5e1 eth2 mii.o query= phy_id:1, address:0 retval:3100 eth2 mii.o query= phy_id:1, address:5 retval:0 eth2.3: dev_set_promiscuity(master, 1) device eth2.3 entered promiscuous mode eth2 mii.o query= phy_id:1, address:4 retval:5e1 eth2 mii.o query= phy_id:1, address:0 retval:3100 eth2 mii.o query= phy_id:1, address:5 retval:0 eth2.4: dev_set_promiscuity(master, 1) device eth2.4 entered promiscuous mode eth2 mii.o query= phy_id:1, address:4 retval:5e1 eth2 mii.o query= phy_id:1, address:0 retval:3100 eth2 mii.o query= phy_id:1, address:5 retval:0 eth2.5: dev_set_promiscuity(master, 1) device eth2.5 entered promiscuous mode rt2860v2_ap: module license 'unspecified' taints kernel. === pAd = c004c000, size = 805344 === <-- RTMPAllocAdapterBlock, Status=0 RX DESC a1df6000 size = 2048 <-- RTMPAllocTxRxRingMemory, Status=0 1. Phy Mode = 9 2. Phy Mode = 9 3. Phy Mode = 9 MCS Set = ff ff 00 00 01 Main bssid = 00:e0:4b:9b:f8:48 <==== rt28xx_init, Status=0 0x1300 = 00064380 device ra0 entered promiscuous mode ipt_account 0.1.21 : Piotr Gasidlo <quaker@barbara.eu.org> br0: port 5(ra0) entering learning state br0: port 4(eth2.5) entering learning state br0: port 3(eth2.4) entering learning state br0: port 2(eth2.3) entering learning state br0: port 1(eth2.2) entering learning state ***** g_wl_interface = ra0 ****** eth2.1: Setting MAC address to 00 e0 4b 9b f8 46. webs: Listening for HTTP requests at address 192.168.1.1 WAN link UP -> DOWN RTNETLINK answers: No such file or directory RTNETLINK answers: No such file or directory RTNETLINK answers: No such file or directory |
Pictures
- JCG
- Embedded system/wireless router
- Embedded System Ralink
- Embedded System RT3052
- Ralink
- Embedded System MIPS 24KEc
- Embedded System
- Manuf Shenzhen Yichen Technology
- OpenWrt Was Supported
- Has Mimo Status
- Embedded System IEEE 802.11b/g/n
- Single-Radio Wireless Embedded System
- Wireless Embedded System
- English Documentation