Product comparison · 2 wired routers

Zyxel P-660H-D1 ADSL 2+ 4-port Gateway over POTS vs Zyxel P-660R-D3 ADSL2+ Router over ISDN

15specifications compared
6differ
9identical
2known for one product only

Key differences

Only the Zyxel P-660R-D3 ADSL2+ Router over ISDN has supports ISDN connection. DSL specification: G.dmt ADSL over POTS (G.992.1 Annex A) on the Zyxel P-660H-D1 ADSL 2+ 4-port Gateway over POTS, G.dmt ADSL over ISDN (G.992.1 Annex B) on the Zyxel P-660R-D3 ADSL2+ Router over ISDN. Operating temperature (T-T): 0 - 50 °C on the Zyxel P-660H-D1 ADSL 2+ 4-port Gateway over POTS, 0 - 40 °C on the Zyxel P-660R-D3 ADSL2+ Router over ISDN. Operating relative humidity (H-H): 20 - 95% on the Zyxel P-660H-D1 ADSL 2+ 4-port Gateway over POTS, 20 - 85% on the Zyxel P-660R-D3 ADSL2+ Router over ISDN. Dimensions (WxDxH): 180 x 128 x 36 mm on the Zyxel P-660H-D1 ADSL 2+ 4-port Gateway over POTS, 105 x 106.5 x 35 mm on the Zyxel P-660R-D3 ADSL2+ Router over ISDN.

Supports ISDN connection
- P-660H-D1 ADSL 2+ 4-port Gateway over POTS:No
- P-660R-D3 ADSL2+ Router over ISDN:Yes
Operating temperature (T-T)
- P-660H-D1 ADSL 2+ 4-port Gateway over POTS:0 - 50 °C
- P-660R-D3 ADSL2+ Router over ISDN:0 - 40 °C
Operating relative humidity (H-H)
- P-660H-D1 ADSL 2+ 4-port Gateway over POTS:20 - 95%
- P-660R-D3 ADSL2+ Router over ISDN:20 - 85%
Dimensions (WxDxH)
- P-660H-D1 ADSL 2+ 4-port Gateway over POTS:180 x 128 x 36 mm
- P-660R-D3 ADSL2+ Router over ISDN:105 x 106.5 x 35 mm

Side by side

Differences highlightedShow differences only

Comparison of P-660H-D1 ADSL 2+ 4-port Gateway over POTS, P-660R-D3 ADSL2+ Router over ISDN
17 specifications	A Zyxel P-660H-D1 ADSL 2+ 4-port Gateway over POTS View product	B Zyxel P-660R-D3 ADSL2+ Router over ISDN View product
Network1 differ
Supports ISDN connectionDiffers	No	Yes
DSL features1 differ
DSL specificationDiffers	G.dmt ADSL over POTS (G.992.1 Annex A)	G.dmt ADSL over ISDN (G.992.1 Annex B)
Ports & interfaces1 differ
I/O portsDiffers	4x 10/100 Ethernet (RJ-45) 1x ADSL (RJ-11)	1x 10/100 Ethernet (RJ-45) 1x ADSL (RJ-45)
Operational conditions2 differ
Operating temperature (T-T)Differs	0 - 50 °C	0 - 40 °C
Operating relative humidity (H-H)Differs	20 - 95%	20 - 85%
Weight & dimensionsidentical
WeightKnown for one	325 g	Unknown — not stated by the source
Other features1 differ
Dimensions (WxDxH)Differs	180 x 128 x 36 mm	105 x 106.5 x 35 mm
Security featuresKnown for one	Unknown — not stated by the source	Password-protected System Management Terminal PAP CHAP Microsoft CHAP IP Packet Filtering

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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