User Guide

3660 Router

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7 One-port Ethernet + one-port serial, async,

and sync (up to 2Mbps) + one-port ISDN

BRI

Yes

8 Four-port ISDN BRI S/T Interface DRM-4B-S/T Yes

9 4-port serial, async, and sync (up to 2Mbps)

DRM-4T Yes

10 8-port serial, async, and sync (<128Kbps) DRM-8A/S Yes

11 8-port asynchronous serial DRM-8ASY Yes

12 16-port asynchronous serial DRM-16ASY Yes

13 One-port channelized E1 DRM-1CE1 Yes

14 Two-port channelized E1 DRM-2CE1 Yes

15 Four-port channelized E1 DRM-4CE1 Yes

16 Two-port FXS (including DSP) DRM-2FXS Yes

17 Two-port FXO (including DSP) DRM-2FXO Yes

18 Two-port E&M (including DSP) DRM-2E&M Yes

19 Four-port FXS (including DSP) DRM-4FXS Yes

20 Four-port FXO (including DSP) DRM-4FXO Yes

21 Four-port E&M (including DSP) DRM-4E&M Yes

22 Two-port FXS + two-port FXO DRM-2FXS&2FXO Yes