D-Link DSL-2750U rev C1

multiple revisions of this device, use caution

bgn (N300)
Wireless N300 ADSL Router
Homepage	Product page (RU)
Wikipedia	D-Link
WikiDevi.wi-cat.ru	D-Link DSL-2750U rev C1
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Was Supported
Tomato any flavor	Status Unknown
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	D-Link DSL-2750U/NRU C1
FCC ID	KA2DSL-2750U
Type	wireless router, dsl modem
CPU1 Y	Broadcom BCM63281
CPU1 Type	BMIPS4350
CPU1 Speed	320 MHz
Flash1 Chip	Eon EN25Q64
Flash1 Size	8 MiB 8,388,608 B <br />65,536 Kib <br />8,192 KiB <br />64 Mib <br />0.00781 GiB <br />
RAM1 Size	32 MiB 33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br />
RAM1 Chip	Samsung K4T56163QI-ZCE6
ETH chip1	Broadcom BCM63281
Switch	Broadcom BCM63281
Ethernet Port Count	4-100MbE-LAN
Wired Standard	IEEE 802.3i/3u
802dot11 OUI: 1C:BD:B9 (-, 3 W) Ethernet OUI: 1C:BD:B9 (-, 3 W)
Stock bootloader	CFE
Stock FW OS	Linux 2.6.30
Expansion IF types	USB 2.0
USB ports	1
USB Hub Compatible	Untested
Power	12 VDC, 1 A
Connector type	barrel
Flags: ADSL2+
Other
Default IP address: 192.168.1.1 the IP 192.168.1.1 is used by 1359 additional devices of which 31 are D-Link devices Default login user: admin Default login password: admin admin:admin credentials used by 1358 additional devices of which 76 are D-Link devices
Manuf/OEM/ODM	DareGlobal
3rd Party Firmware Support	OpenWrt (Was)
Retail
Availability	End of Life
FCC approval date	09 March 2011
ASIN	B00DCJ9IHW
Country of manuf	China
Radio 1
Chip1	Broadcom BCM43225
Wireless interface OUI	1C:BD:B9
Antenna Connector Type	none specified
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
CPU1 brand Radio1 chip1 brand Radio1 chip2 brand D-Link DSL-2750B rev B1 Broadcom Atheros D-Link DSL-2750B rev D1 Broadcom Broadcom D-Link DSL-2750E Realtek Realtek D-Link DSL-2750U rev C1 Broadcom Broadcom D-Link DSL-2750U rev U1 Realtek Realtek

For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.

For a list of all currently documented D-Link devices with specifications, see D-Link.

• 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = N300 class

Overview

• D-Link DSL-2750U/NRU/C (NRU/BA/C1A)

"PWB:T00469D6B-G", "DAT:10.10.25" is silkscreened on the board in the FCC photos.

Links of Interest

• On the OpenWrt forums

Reviews

• On Foxnetwork.ru

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)

Target: bcm63xx
Subtarget: generic
Package architecture: mips_mips32
Supported Since Commit
Support started version: 21.02.0
Current supported version: EOL
Last Supported Version: 22.03.7

Unsupported Functions:
DSL modem
Comment:
Final version: 22.03.7

git • >>

bcm63xx: Add support for D-Link DSL-2750u rev C1 This adds support for the D-Link DSL-2750u rev C1. (https://deviwiki.com/wiki/D-Link_DSL-2750U_rev_C1) It uses the same hardware as ADB P.DG A4001N. CPU: Broadcom BCM63281 (320 MHz) RAM: 32M (Winbond W9725G6JB) Flash: 8M (MXIC MX25L6445E) Ethernet: 4x 100 Mbps Wireless: 802.11b/g/n: BCM43225 USB: 1x 2.0 Flash instructions: 1. Assign static IP 192.168.1.100 to PC 2. Unplug the power source 3. Press the RESET button at the router, don't release it yet! 4. Plug the power source.Wait some seconds 5. Release the RESET button 6. Browse to http://192.168.1.1 7. Send the openwrt-bcm63xx-generic-DSL2750U-C1-squashfs-cfe.bin and wait some minutes until the firmware upgrade finish. Signed-off-by: Ahmed Naseef [DTS improvements, proper board patch, refresh patches] Signed-off-by: Álvaro Fernández Rojas

JTAG-Serial Info

Serial

Info dump

cat /proc/cpuinfo:
   system type             : 963281TAVNG
   processor               : 0
   cpu model               : Broadcom4350 V7.5
   BogoMIPS                : 319.48
   wait instruction        : yes
   microsecond timers      : yes
   tlb_entries             : 32
   extra interrupt vector  : no
   hardware watchpoint     : no
   ASEs implemented        :
   shadow register sets    : 1
   core                    : 0
   VCED exceptions         : not available
   VCEI exceptions         : not available
   unaligned exceptions            : 36

cat /proc/meminfo:
   MemTotal:          27708 kB
   MemFree:            1100 kB
   Buffers:            2768 kB
   Cached:            11128 kB
   SwapCached:            0 kB
   Active:             4208 kB
   Inactive:          12428 kB
   Active(anon):       1252 kB
   Inactive(anon):     1488 kB
   Active(file):       2956 kB
   Inactive(file):    10940 kB
   SwapTotal:             0 kB
   SwapFree:              0 kB
   Dirty:                 0 kB
   Writeback:             0 kB
   AnonPages:          2756 kB
   Mapped:             3596 kB
   Slab:               6676 kB
   SReclaimable:        424 kB
   SUnreclaim:         6252 kB
   PageTables:          308 kB
   NFS_Unstable:          0 kB
   Bounce:                0 kB
   WritebackTmp:          0 kB
   CommitLimit:       13852 kB
   Committed_AS:       6712 kB
   VmallocTotal:    1032148 kB
   VmallocUsed:        2744 kB
   VmallocChunk:    1024264 kB
cat /proc/diskstats:
   31       0 mtdblock0 266 3753 8038 1602 0 0 0 0 0 1599 1602

See also

D-Link product (RU):

• D-Link DSL-2750U/B
• D-Link DSL-2750U/RA/U2A