Product comparison · 2 network transceiver modules

Allied Telesis AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP vs Allied Telesis AT-SPBD40-14/I network transceiver module Fiber optic 1000 Mbit/s BiDi SFP

8specifications compared
3differ
5identical
12known for one product only

Key differences

Interface type
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:SFP
- AT-SPBD40-14/I network transceiver module Fiber optic 1000 Mbit/s BiDi SFP:BiDi SFP
Maximum transfer distance
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:20000 m
- AT-SPBD40-14/I network transceiver module Fiber optic 1000 Mbit/s BiDi SFP:40000 m
Product colour
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:Metallic
- AT-SPBD40-14/I network transceiver module Fiber optic 1000 Mbit/s BiDi SFP:Grey

Side by side

Differences highlightedShow differences only

Comparison of AT-SPBD20-14/I, AT-SPBD40-14/I
20 specifications	A Allied Telesis AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP Model AT-SPBD20-14/I View product	B Allied Telesis AT-SPBD40-14/I network transceiver module Fiber optic 1000 Mbit/s BiDi SFP Model AT-SPBD40-14/I View product
Performance2 differ
SFP transceiver type	Fiber optic	Fiber optic
Maximum data transfer rate	1000 Mbit/s	1000 Mbit/s
Interface typeDiffers	SFP	BiDi SFP
Single-mode fiber (SMF) supported	Yes	Yes
Fiber optic connectorKnown for one	SC	Unknown — not stated by the source
Maximum transfer distanceDiffers	20000 m	40000 m
Tx wavelength (max)	1490 nm	1490 nm
Rx wavelength (max)	1310 nm	1310 nm
Tx power (min)Known for one	-9 dBmW	Unknown — not stated by the source
Tx power (max)Known for one	-3 dBmW	Unknown — not stated by the source
Link budgetKnown for one	14 dB	Unknown — not stated by the source
Duplex systemKnown for one	Full	Unknown — not stated by the source
Digital Diagnostics Monitoring (DDM)Known for one	No	Unknown — not stated by the source
Fiber ports quantityKnown for one	1	Unknown — not stated by the source
Features1 differ
Product colourDiffers	Metallic	Grey
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Hot-swapKnown for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	-40 - 203 °F	Unknown — not stated by the source
Packaging contentidentical
Quantity per packKnown for one	1 pc(s)	Unknown — not stated by the source
Other featuresidentical
RX sensitivityKnown for one	-23 dB	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.

More network transceiver module comparisons

All network transceiver module comparisons