MultiVOIP SS TM Survivable SIP Gateway & Server User Guide Models: MVP210-SS MVP410-SS MVP810-SS

Cable Pinouts MultiVOIP User Guide
382
Pin Functions (FXS/FXO Interface)
FXS Pin Description FXO Pin Description
2 N/C 2 N/C
3 Ring 3 Tip
4 Tip 4 Ring
5 N/C 5 N/C