Product comparison · 2 wired routers

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

16specifications compared
3differ
13identical
0known for one product only

Key differences

Only the Zyxel P-660H-D3 ADSL 2+ 4-port Gateway 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-660H-D3 ADSL 2+ 4-port Gateway over ISDN.

Supports ISDN connection
- P-660H-D1 ADSL 2+ 4-port Gateway over POTS:No
- P-660H-D3 ADSL 2+ 4-port Gateway over ISDN:Yes

Side by side

Differences highlightedShow differences only

Comparison of P-660H-D1 ADSL 2+ 4-port Gateway over POTS, P-660H-D3 ADSL 2+ 4-port Gateway over ISDN
16 specifications	A Zyxel P-660H-D1 ADSL 2+ 4-port Gateway over POTS View product	B Zyxel P-660H-D3 ADSL 2+ 4-port Gateway 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)	4x 10/100 Ethernet (RJ-45) 1x ADSL (RJ-45)

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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