![background image](http://html1.mh-extra.com/html/patton-electronics/smartnode-4552/smartnode-4552_getting-started-manual_763652050.webp)
50
Appendix D
Port pin-outs
Chapter contents
Introduction
..........................................................................................................................................................51
Ethernet
................................................................................................................................................................51
ISDN BRI 0/1 Phone (NT/Net) port
....................................................................................................................51
ISDN BRI 0/0 Line (TE/Usr) port
........................................................................................................................52