JCG JHR-N825R

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bgn (N300)
300Mbps High Power Wireless Router
Homepage
3rd Party Firmware
dd-wrt
OpenWrt
Incompatible
Tomato any flavor
Incompatible
Platform
BrandModelRev
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

802dot11 OUI: 00:E0:4B (2 E, 3 W)
Ethernet OUI: 00:E0:4B (2 E, 3 W)

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)
Default IP address: 192.168.1.1
the IP 192.168.1.1 is used by 1303 additional devices
of which 7 are JCG devices
Default login user: admin
Default login password: admin
admin:admin credentials used by 1330 additional devices
of which 8 are JCG devices

Manuf/OEM/ODM
Retail
FCC approval date 12 July 2012
UPC 669954019263
(UPC DB, On eBay)
ASIN B008EP00BC Flag of the United States.svg
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

On SpeedGuide

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
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

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