Connection
Specications
Switch Switch
TL-SM321A
Fiber
TL-SM321B
Use only the TL-SM321A&TL-SM321B together, and TL-SM321A-2&TL-SM321B-2 together for fast and reliable connectivity between switches.
For simplicity, we will take TL-SM321A&TL-SM321B as an example.
Product Operating Temperature 0˚C to 70˚C (32˚F to 158˚F)
Storage Temperature -40˚C to 85˚C (-40˚F to 185˚F)
Storage Humidity 5% to 90% RH, Non-condensing
Operating Humidity 10% to 90% RH, Non-condensing
Environmental and Physical Specications
TP-Link Compatible Products
Note:
The SFP modules may be incompatible with other vendors’ devices. We
recommend that you use only TP-Link SFP modules on your TP-Link devices.
TP-Link Switches with gigabit SFP Slots
MC220L
Port Type
Fiber Type
Data Rate
Wave Length
Cable
Normal
Max. Cable Length
Power Support
Safety & Emission
Tx: 1550 nm
Rx: 1310 nm Rx: 1550 nm
IEEE 802.3z, TCP/IP
Single-mode Fiber
9/125 um Single-mode
20 km
1.25 Gbps
LC Simplex
3.3 V
FCC, CE
Tx: 1310 nm
Standards and Protocols
TL-SM321BTL-SM321A
General Specications
Ye s
Ye s
DDM
SFP-MSA
Ye s
Hot Swappable
Port Type
Fiber Type
Data Rate
Wave Length
Cable
Normal
Max. Cable Length
Power Support
Safety & Emission
Tx: 1550 nm
Rx: 1310 nm Rx: 1550 nm
IEEE 802.3z, TCP/IP
Single-mode Fiber
9/125 um Single-mode
2 km
1.25 Gbps
LC Simplex
3.3 V
FCC, CE
Tx: 1310 nm
Standards and Protocols
TL-SM321B-2TL-SM321A-2
Ye s
Ye s
DDM
SFP-MSA
Ye s
Hot Swappable
Safety Information
Keep the device away from water, re, humidity or hot environments.
Do not attempt to disassemble, repair, or modify the device.
Avoid using this product during an electrical storm. There may be a remote
risk of electric shock from lightning.
Do not point or stare directly into the beam or into the optical port of the
transceiver when it is operating, as this can injure your eyesight.
TP-Link hereby declares that the device is in compliance with the essential
requirements and other relevant provisions of directives 2014/30/EU,
2014/35/EU, 2009/125/EC, 2011/65/EU and (EU)2015/863.
The original EU declaration of conformity may be found at
https://www.tp-link.com/en/ce
EU Declaration of Conformity
TP-Link hereby declares that the device is in compliance with the essential
requirements and other relevant provisions of the Electromagnetic
Compatibility Regulations 2016 and Electrical Equipment (Safety) Regulations
2016.
The original UK Declaration of Conformity may be found at
https://www.tp-link.com/support/ukca
UK Declaration of Conformity