Product comparison · 2 modems

D-Link ADSL2+ Ethernet Modem (Annex B) vs Zyxel P-871M modem

8specifications compared
6differ
2identical
20known for one product only

Key differences

The Zyxel P-871M modem has 24 mm more depth than the D-Link ADSL2+ Ethernet Modem (Annex B) (132 mm vs 108 mm). The Zyxel P-871M modem has 9 mm more height than the D-Link ADSL2+ Ethernet Modem (Annex B) (40 mm vs 31 mm). The Zyxel P-871M modem has 47 mm more width than the D-Link ADSL2+ Ethernet Modem (Annex B) (189 mm vs 142 mm). Operating relative humidity (H-H): 5 - 95% on the D-Link ADSL2+ Ethernet Modem (Annex B), 20 - 85% on the Zyxel P-871M modem. Storage temperature (T-T): 20 - 70 °C on the D-Link ADSL2+ Ethernet Modem (Annex B), -20 - 60 °C on the Zyxel P-871M modem.

Operating relative humidity (H-H)
- ADSL2+ Ethernet Modem (Annex B):5 - 95%
- P-871M modem:20 - 85%
Storage temperature (T-T)
- ADSL2+ Ethernet Modem (Annex B):20 - 70 °C
- P-871M modem:-20 - 60 °C
Depth
- ADSL2+ Ethernet Modem (Annex B):108 mm
- P-871M modem:132 mm
Height
- ADSL2+ Ethernet Modem (Annex B):31 mm
- P-871M modem:40 mm
Width
- ADSL2+ Ethernet Modem (Annex B):142 mm
- P-871M modem:189 mm

Side by side

Differences highlightedShow differences only

Comparison of ADSL2+ Ethernet Modem (Annex B), P-871M
28 specifications	A D-Link ADSL2+ Ethernet Modem (Annex B)View product	B Zyxel P-871M modem Model P-871M View product
Performance1 differ
Upstream data rateKnown for one	Unknown — not stated by the source	40 Mbit/s
Downstream data rateKnown for one	Unknown — not stated by the source	80 Mbit/s
Networking featuresKnown for one	Unknown — not stated by the source	Ethernet, Fast Ethernet, VDSL1/2
Supported protocolsDiffers	OAM F4/F5 IP - ATM (RFC 1577) PPP - ATM (RFC 2364) PPP - Ethernet (PPPoE) AAL5	1 x WAN (RJ45)
Data link protocolsKnown for one	ADSL2+ / G.dmt	Unknown — not stated by the source
Featuresidentical
Flow control supportKnown for one	Unknown — not stated by the source	Yes
LED indicatorsKnown for one	Unknown — not stated by the source	Yes
Connectivity LEDsKnown for one	Unknown — not stated by the source	Yes
Ports & interfacesidentical
DC-in jackKnown for one	Unknown — not stated by the source	Yes
Ethernet LAN (RJ-45) portsKnown for one	Unknown — not stated by the source	1
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
Poweridentical
USB poweredKnown for one	Unknown — not stated by the source	No
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	Federal Communications Commission (FCC)
CertificationKnown for one	Unknown — not stated by the source	EN55022 Class B, EN61000-3-2: 2000, EN61000-3-3: 1995+A1:2001, FCC Part 15 (Class B), CSA 60950-1, UL 60950-1, EN 60950-1:2001+A11, IEC 60950-1:2001
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.1D
SafetyKnown for one	CSA	Unknown — not stated by the source
Operational conditions2 differ
Operating relative humidity (H-H)Differs	5 - 95%	20 - 85%
Storage temperature (T-T)Differs	20 - 70 °C	-20 - 60 °C
Non-operating relative humidity (non-condensing)Known for one	Unknown — not stated by the source	20 - 90%
Weight & dimensions3 differ
DepthDiffers	108 mm	132 mm
HeightDiffers	31 mm	40 mm
WeightKnown for one	Unknown — not stated by the source	307 g
WidthDiffers	142 mm	189 mm
Modemidentical
Modem typeKnown for one	ADSL	Unknown — not stated by the source
Modem speedKnown for one	24000 Kbit/s	Unknown — not stated by the source
InterfaceKnown for one	RJ-45 / RJ-11	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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