Product comparison · 2 network transceiver modules

TP-Link ISM321A-20 network transceiver module Fiber optic 1250 Mbit/s SFP vs TP-Link SM321B-2(UN) network transceiver module Fiber optic 1250 Mbit/s SFP

16specifications compared
9differ
7identical
19known for one product only

Key differences

Fiber optic connector
- ISM321A-20 network transceiver module Fiber optic 1250 Mbit/s SFP:LC (UPC)
- SM321B-2(UN) network transceiver module Fiber optic 1250 Mbit/s SFP:LC
Maximum transfer distance
- ISM321A-20 network transceiver module Fiber optic 1250 Mbit/s SFP:20000 m
- SM321B-2(UN) network transceiver module Fiber optic 1250 Mbit/s SFP:1000 m
Product colour
- ISM321A-20 network transceiver module Fiber optic 1250 Mbit/s SFP:Grey
- SM321B-2(UN) network transceiver module Fiber optic 1250 Mbit/s SFP:Metallic
Storage temperature (T-T)
- ISM321A-20 network transceiver module Fiber optic 1250 Mbit/s SFP:-40 - 85 °C
- SM321B-2(UN) network transceiver module Fiber optic 1250 Mbit/s SFP:-40 - 80 °C
Operating relative humidity (H-H)
- ISM321A-20 network transceiver module Fiber optic 1250 Mbit/s SFP:5 - 85%
- SM321B-2(UN) network transceiver module Fiber optic 1250 Mbit/s SFP:10 - 90%
Storage relative humidity (H-H)
- ISM321A-20 network transceiver module Fiber optic 1250 Mbit/s SFP:5 - 85%
- SM321B-2(UN) network transceiver module Fiber optic 1250 Mbit/s SFP:5 - 90%
Width
- ISM321A-20 network transceiver module Fiber optic 1250 Mbit/s SFP:56.4 mm
- SM321B-2(UN) network transceiver module Fiber optic 1250 Mbit/s SFP:55.4 mm
Depth
- ISM321A-20 network transceiver module Fiber optic 1250 Mbit/s SFP:13.4 mm
- SM321B-2(UN) network transceiver module Fiber optic 1250 Mbit/s SFP:14.6 mm

Side by side

Differences highlightedShow differences only

Comparison of ISM321A-20, SM321B-2(UN)
35 specifications	A TP-Link ISM321A-20 network transceiver module Fiber optic 1250 Mbit/s SFP Model ISM321A-20 View product	B TP-Link SM321B-2(UN) network transceiver module Fiber optic 1250 Mbit/s SFP Model SM321B-2(UN) View product
Performance2 differ
SFP transceiver type	Fiber optic	Fiber optic
Maximum data transfer rate	1250 Mbit/s	1250 Mbit/s
Interface type	SFP	SFP
Single-mode fiber (SMF) supported	Yes	Yes
Multi-mode fiber (MMF) supportedKnown for one	Unknown — not stated by the source	No
Fiber optic connectorDiffers	LC (UPC)	LC
Fiber cable diameters supported (core/cladding)	9/125 µm	9/125 µm
SFP transceiver standardKnown for one	Unknown — not stated by the source	BX
Maximum transfer distanceDiffers	20000 m	1000 m
Tx wavelength (max)Known for one	Unknown — not stated by the source	1310 nm
Rx wavelength (max)Known for one	Unknown — not stated by the source	1550 nm
Networking standards	IEEE 802.3z	IEEE 802.3z
Wavelength-division multiplexing (WDM)Known for one	Unknown — not stated by the source	Yes
Ethernet interface typeKnown for one	1.25 Gigabit Ethernet	Unknown — not stated by the source
Features1 differ
Product colourDiffers	Grey	Metallic
Hot-swapKnown for one	Yes	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
Certification	FCC, CE	FCC, CE
Operational conditions3 differ
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 70 °C
Storage temperature (T-T)Differs	-40 - 85 °C	-40 - 80 °C
Operating relative humidity (H-H)Differs	5 - 85%	10 - 90%
Storage relative humidity (H-H)Differs	5 - 85%	5 - 90%
Minimum operating temperatureKnown for one	-40 °C	Unknown — not stated by the source
Maximum operating temperatureKnown for one	85 °C	Unknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers	56.4 mm	55.4 mm
DepthDiffers	13.4 mm	14.6 mm
HeightDiffers	11 mm	12.9 mm
Packaging contentidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)
Packaging dataidentical
User guideKnown for one	Unknown — not stated by the source	Yes
Package widthKnown for one	Unknown — not stated by the source	81.5 mm
Package depthKnown for one	Unknown — not stated by the source	122.5 mm
Package heightKnown for one	Unknown — not stated by the source	38.5 mm
Package weightKnown for one	Unknown — not stated by the source	60 g
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	85369010
Poweridentical
Input voltageKnown for one	3.3 V	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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