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-SPBD40-13/I network transceiver module Fiber optic 1000 Mbit/s SFP

Key differences

Fiber optic connector
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:SC
- AT-SPBD40-13/I network transceiver module Fiber optic 1000 Mbit/s SFP:LC
Maximum transfer distance
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:20000 m
- AT-SPBD40-13/I network transceiver module Fiber optic 1000 Mbit/s SFP:40000 m
Tx wavelength (max)
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:1490 nm
- AT-SPBD40-13/I network transceiver module Fiber optic 1000 Mbit/s SFP:1310 nm
Rx wavelength (max)
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:1310 nm
- AT-SPBD40-13/I network transceiver module Fiber optic 1000 Mbit/s SFP:1490 nm
Tx power (max)
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:-3 dBmW
- AT-SPBD40-13/I network transceiver module Fiber optic 1000 Mbit/s SFP:2 dBmW
Digital Diagnostics Monitoring (DDM)
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:No
- AT-SPBD40-13/I network transceiver module Fiber optic 1000 Mbit/s SFP:Yes
Product colour
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:Metallic
- AT-SPBD40-13/I network transceiver module Fiber optic 1000 Mbit/s SFP:Silver
Operating temperature (T-T)
- AT-SPBD20-14/I network transceiver module Fiber optic 1000 Mbit/s SFP:-40 - 203 °F
- AT-SPBD40-13/I network transceiver module Fiber optic 1000 Mbit/s SFP:-40 - 85 °C

Differences highlightedShow differences only

Comparison of AT-SPBD20-14/I, AT-SPBD40-13/I
21 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-SPBD40-13/I network transceiver module Fiber optic 1000 Mbit/s SFP Model AT-SPBD40-13/I View product
Performance6 differ
Fiber optic connectorDiffers	SC	LC
Maximum transfer distanceDiffers	20000 m	40000 m
Tx wavelength (max)Differs	1490 nm	1310 nm
Rx wavelength (max)Differs	1310 nm	1490 nm
Tx power (min)Known for one	-9 dBmW	Unknown — not stated by the source
Tx power (max)Differs	-3 dBmW	2 dBmW
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)Differs	No	Yes
Fiber ports quantityKnown for one	1	Unknown — not stated by the source
Features1 differ
Product colourDiffers	Metallic	Silver
Operational conditions1 differ
Operating temperature (T-T)Differs	-40 - 203 °F	-40 - 85 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 85%
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.