ZyXEL 660HW-D1 91-004-593001B Manuale Utente

P-660H/HW-D Series User’s Guide

Appendix J Splitters and Microfilters

310

This section relates to people who use their ZyXEL Device with ADSL over ISDN (digital 
telephone service) only. The following is an example installation for the ZyXEL Device with 
ISDN.

Figure 182   ZyXEL Device with ISDN