The ADTRAN Netvanta 1531P is a fully managed 12 port rack-mountable Ethernet switch with Gigabit Ethernet technology, offering a maximum LAN data rate of 1000 Mbps/1 Gbps. With a Layer 3 networking capability and SFP connectors, this switch is designed for high-speed network connectivity. The compact form factor and rack mounts make it ideal for enterprise networking setups, providing reliable Ethernet switching for a variety of devices.

Comes with 1U rack mount arms. No power cord.

Stuck in seg fault reboot loop, probably corrupted images (both images) and I don't have any access to them. Sold AS/IS.

Bootloader...
Starting logging: OK
Starting mdev...
Initializing random number generator... done.
Starting network...
Mounting sysconfig...
Mounting NONVOL...
loading modules...
DMA pool size: 8388608
Discovering devices...
AXI unit 0: Dev 0x8343, Rev 0x01, Chip BCM53343_A0, Driver BCM56150_A0
SOC unit 0 attached to PCI device BCM53343_A0
...done
Initializing unit 0...
Initializing ports...
LED: Loading 256 bytes into LED program memory
Heap size: 182202368
Initializing Driver factory -------------------------------------
dblk_area = 0xB64F6000, phys_dblk_offset = 0x540f6000
shm_size = 0x00400000
dblk_area = 0xB64F6000
mblk_area = 0xB66E6950
phys_dblk_offset = 0x540F6000
AOS Init:

Switch (1700571F1)
Executing bootstrap...
ram: 259899392 bytes of RAM detected.
Serial Number: LBADTN1616AJ319
Bootstrap
  Version: R11.2.0
  Checksum: UNKNOWN
  Build Date: Tue Jun 3 15:51:48 CDT 2014
vfs: NONVOL: 88780800 total, 56115200 used.
vlan1: initializing...
msg from adtran_bcmsdk process:client sockets connected.
Attaching unit 0 to BCMX...success!
Register rx handler - BCM
Successful Packet RX registration
Switch hardware initialized!
vlan1: MAC address is 00:19:92:B9:A8:0D
bootstrap: Checking boot configuration...
bootstrap: Primary image is 'NV1531A-R12-3-2.biz'.
bootstrap: Backup image is '9700570-2R110200.biz'.
bootstrap: Booting 'NV1531A-R12-3-2.biz'                        
Verifying:....................... done.
Extracting: watchdog watchdog0: watchdog did not stop!
Segmentation fault (core dumped)
Rebooting...