RB493

Mikrotik RouterBOARD RB493 has nine ethernet ports and three miniPCI slots, it also has a switch chip, so the ethernet ports of your choice can be grouped together to make it act as

a switch.

The heart of this device is a new generation Atheros CPU, adding this device to the already successful RB400 product range. RB493 includes RouterOS - the operating system, which will turn this powerful
system into a highly sophisticated router/ firewall or bandwidth manager. One small device - with all the power of RouterOS, At a very special price.

• Memory and Storage Devices

Onboard Memory - The boards are equipped with 64MB DDR SDRAM onboard memory, depending on build version.

Onboard NAND Storage Device - The boards are equipped with one 64MB NAND nonvolatile memory chip. 

•  Extension Slots      

MiniPCI Slots - The boards have 3 MiniPCI Type IIIA slots with 3.3V only power signaling. They also accept MiniPCI Type IIB standard cards.

Supplied power for the extension cards (excluding CPU and onboard Ethernet ports):
13W

• Input / Output Ports 

LAN1 Port with PoE - This Fast Ethernet port is recognized as the first LAN interface. It is compatible with passive (non-standard) Power over Ethernet. The board accepts voltage input from 12 to 28 V DC. It is suggested to use higher voltages within this range for power over long cables because of better efficiency (less power is lost in the cable itself and power supply is more efficient).

Eight LAN Ports without PoE - These Fast Ethernet ports are recognized as eight independent second LAN interfaces: LAN2 to LAN9. The ports do not support Power over Ethernet. All cables made to EIA/TIA 568A/B cable specifications will work correctly (see Connector Index for pinout). Note that these ports support automatic cross/straight cable correction (Auto MDI/X), so you can use either straight or cross-over cables for connecting to other network devices.

•  LEDs

Power LED - Power LED is on when the board is powered.

User LEDs - 5x User LEDs  may be programmed at user\\\'s option. They are lit by default when the board starts up, then they are turned off when the bootloader runs kernel.

MikroTik Lab Test results

All tests were carried out by MikroTik in Riga, Latvia,on 2x 100Mb/s Ethernet interfaces on a RB493  with an Agilent N2X two port specialized test system, RouterOS v3. Date: July 2008

Calculation used to convert pps to Mbps: ((IP packet size + 18) x 8 xpps) / 1000000.

Firewall means ip-firewall setting was enabled in Bridging mode. This setting doesn\\\'t apply to Routing mode.

Note: Figures quoted in Italic were interface limited (all theoretically available bandwidth of the interface was consumend during the test).

Firewall	Connection Tracking	Routing Bridging	64 byte packets	512 byte packets	1500 byte packets
Mbsec-1	Ppsec	Mbs-1	Ppsec	Mbs-1	Ppsec
N/A	Off	Routing	33.72	51400	192.92	45500	197.34	16250
N/A	On	Routing	25.72	39200	192.92	45500	197.34	16250
Off	Off	RSTP-bridge	52.09	79400	192.92	45500	197.34	16250
On	Off	RSTP-bridge	32.08	48900	192.92	45500	197.34	16250
On	On	RSTP-bridge	22.83	34800	143.74	33900	197.34	16250