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MikroTik CRS328-24P-4S+RM User Manual

MikroTik CRS328-24P-4S+RM
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The unit is equipped with one IEC type AC power input, which accepts 100-240 V powering (~ 50/60 Hz 7 A max). The power consumption of this device
itself under maximum load is up to 44 W.
Booting process
The device supports booting RouterOS (for complete routing and switching configuration) or SwOS (for only using as a switch). By default, the device will
boot RouterOS, but you can reboot into the other operating system in the following ways:
From SwOS: In the System menu, click the "Boot RouterOS" button on the bottom of the page.
From RouterOS: in the System, RouterBOARD menu, click "Settings" and there select "Boot OS".
It is also possible to select the OS and configure other boot settings via the serial console menu.
Configuration
Full RouterOS and SwOS documentation is located here: https://mt.lv/help
This device is not preconfigured other than an IP address on the master Ethernet port. You can connect from any port, as all ports are switched together
by default. Another configuration has to be applied according to the documentation manual linked above.
The Initial connection has to be done via the Ethernet cable, using the MikroTik Winbox utility. Winbox should be used to connect to the default IP address
of 192.168.88.1 from any port, with the username admin and no password.
For recovery purposes, it is possible to boot the device from the network, see Buttons, and Jumpers.
In case the IP connection is not available, the Winbox utility can also be used to connect to the MAC address of the device. Applies only when the device
has booted RouterOS.
The device is equipped with an RJ45 serial port, set by default to 115200bit/s, 8 data bits, 1 stop bit, no parity. Standard RJ45 to COM cable can be used,
pinout can be found in our manual: https://mt.lv/help
Power output
This device can supply PoE powering to external devices from its Ethernet ports. The output voltage will be selected automatically, depending on what kind
of voltage the connected device requires. The device can power both 802.3af/at devices and devices that accept passive PoE power. If necessary, the
output voltage can be switched manually. By default the PoE mode is set to auto, it will not damage devices and will auto-detect devices with PoE support
and the needed voltage. Once a PoE device is detected, it will be powered and the PoE LEDs will turn on.
The PoE out ports is grouped in three PoE out groups of 8 ports each (PSE8). Total device PoE limit = 450w (150w per PSE8 group).
Each port can provide up to 30 W with high voltage, and 26,5 W with low voltage power output.
Buttons and Jumpers
Reset button:
Hold this button during boot time until the USR LED light starts flashing, release the button to reset RouterOS configuration.
Keep holding the button for 5 more seconds or until the user LED turns off, then release it to make the RouterBOARD look for Netinstall servers.
The first Ethernet port is used for the Netinstall process. See RouterOS documentation about using the Netinstall recovery utility.
Regardless of the above option used, the system will load the backup RouterBOOT loader if the button is pressed before power is applied to the device.
Release the button before LED begins to flash, to only load backup RouterBOOT without reset. This is useful for RouterBOOT debugging and recovery.
Mode button:
The action of the mode buttons can be configured from RouterOS software to execute any user-supplied RouterOS script. You can also disable this button.
The mode button can be configured in RouterOS menu /system routerboard mode-button
Extension slots and ports
24 gigabit Ethernet ports (With Auto MDI/X so you can use either straight or cross-over cables for connecting to other network devices).
4 SFP+ cages, which accept both 1.25 Gb SFP and 10 Gb SFP+ modules.
RJ45 serial port.
LED indicators

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MikroTik CRS328-24P-4S+RM Specifications

General IconGeneral
Switch typeManaged
Switch layerL2/L3
Console portRJ-45
SFP+ module slots quantity4
Installed SFP modules quantity-
Basic switching RJ-45 Ethernet ports typeGigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity24
VLAN supportYes
Networking standardsIEEE 802.1Q, IEEE 802.3ad
Throughput64 Mpps
Forwarding rate95.2 Mpps
MAC address table16000 entries
Form factor1U
Product colorWhite
Flash memory16 MB
Internal memory512 MB
Processor frequency800 MHz
AC input voltage100 - 240 V
Power consumption (max)44 W
Operating temperature (T-T)-20 - 60 °C
Cables includedAC
Harmonized System (HS) code85176990
Weight and Dimensions IconWeight and Dimensions
Depth305 mm
Width443 mm
Height44 mm

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