Northern UTA220/UTA220k - Manual (Page 149)

UTA220/UTA220k
D-1
Interfaces
Appendix D
Interfaces
ISDN INTERFACE
Figure D-1 and Table 1 show the UTA ISDN.
Figure D-1. U Interface RJ45 Pin Interfaces
INTERFACES
Tables 2 through 4 describe the pin functions of the DTE
interfaces on the UTA. Use the table corresponding to the
interface on your UTA. General descriptions of the pins follow.
Note: In the following tables, unused pins have no
electrical connection.
Table D-1: U Interface RJ45 Pin Functions
Pin Name Function
1 Battery status No connection
2 Battery status No connection
3 ---- No connection
4 Signal U interface tip or ring
5 Signal U interface tip or ring