MikroTik CRS112-8P-4S-IN

8x Gigabit Ethernet Smart Switch with PoE-out, 4x SFP cages, 400MHz CPU, 128MB RAM, desktop case, RouterOS L5

CRS112-8P-4S-IN is an eight Gigabit RJ45 port PoE switch, that offers different power output options: autosensing 802.3af/at PoE/PoE+ and Passive PoE, and four SFP ports provide optical fiber connectivity options to support uplinks of up to 1 Gbps.

CRS112-8P-4S-IN is equipped with 12 independent switching ports. 28 V 3.4 A power supply is already included in the box. There is secondary DC jack on the back of the enclosure that supports 48-57 V power supply (not included, can be purchased separately – product codes 48POW (1.46A 70W) and 48V2A96W (2A 96W)). CRS112-8P-4S-IN can power 802.3af/at devices if 48-57 V DC input is used (unit will automatically detect and provide correct power to devices). Max current is 1 A per port if input voltage is 18-28 V, 450 mA if 48-57 V. Total limit is 2.8A@24V and 1.4A@48-57V. PoE-Out is passed over mode B 4,5 (+) and 7,8 (-) pins
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Description

Specifications

Details
Product code CRS112-8P-4S-IN
Architecture MIPSBE
CPU QCA8511
CPU core count 1
CPU nominal frequency 400 MHz
License level 5
Size of RAM 128 MB
Storage size 16 MB
Storage type FLASH
Tested ambient temperature -20 to 60° C
Suggested price $179.00

Powering

Details
PoE out 802.3af/at
Number of DC inputs 2 (DC jack)
DC jack input Voltage 18 – 57 V
Max out per port output (input > 30 V) 450 mA
Max out per port output (input < 30 V) 1 A
Max total out (A) 2.8 A
Max power consumption 10
Max power consumption without attachments 10W

Ethernet

Details
10/100/1000 Ethernet ports 8

Fiber

Details
SFP ports 4

Peripherals

Details
Serial port RJ45

Other

Details
PCB temperature monitor Yes

Switching results

CRS112-8P-4S-IN
Mode Configuration 64 byte 512 byte 1518 byte
kpps Mbps kpps Mbps kpps Mbps
Switching Non blocking Layer 2 throughput 17,857.1 9,142.9 2,819.5 11,548.9 975.3 11,844.0
Switching Non blocking Layer 2 capacity 17,857.1 18,285.7 2,819.5 23,097.7 975.3 23,687.9
Switching Non blocking Layer 1 throughput 17,857.1 12,000.0 2,819.5 12,000.0 975.3 12,000.0
Switching Non blocking Layer 1 capacity 17,857.1 24,000.0 2,819.5 24,000.0 975.3 24,000.0

Ethernet test results

CRS112-8P-4S-IN QCA8511 1G all port test
Mode Configuration 1518 byte 512 byte 64 byte
kpps Mbps kpps Mbps kpps Mbps
Bridging none 48.0 582.9 73.5 301.1 78.0 39.9
Bridging 25 bridge filter rules 26.1 317.0 28.6 117.1 29.6 15.2
Routing none 46.5 564.7 65.7 269.1 71.1 36.4
Routing 25 simple queues 14.5 176.1 16.1 65.9 16.8 8.6
Routing 25 ip filter rules 7.8 94.7 8.0 32.8 8.3 4.2
  1. All tests are done with Xena Networks specialized test equipment (XenaBay),and done according to RFC2544 (Xena2544)
  2. Max throughput is determined with 30+ second attempts with 0,1% packet loss tolerance in 64, 512, 1518 byte packet sizes
  3. Values in Italic indicate that max throughput was reached without maxing out CPU, but because board interface configuration was maxed out
  4. Test results show device maximum performance, and are reached using mentioned hardware and software configuration, different configurations most likely will result in lower results
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