Appendix A: Technical specifications
98-140012-H
Interfaces specifications
137
Phone interface
Connector pin-out
Specifications
Pin
Function
1
NC
2
Tip
3
Ring
4
NC
1 2 3 4
RJ-11 Connector
Female (Receptacle)
Item
Specification
Connector type
RJ-11, female
Impedance
User selectable in web interface, EURO is default.
• EURO: 270 Ohm + 750 Ohm / 150 nF, or
• USA/ Canada/ Japan: 600 Ohm
Max. cable length
100 m / 80 Ohm