Appendix a: cable pinouts, Command cable, Ethernet connector – Multi-Tech Systems MVPFXS-16 User Manual
Page 154: Pin functions (fxs/fxo interface)

Cable Pinouts
MultiVOIP FXS User Guide
154
Appendix A: Cable Pinouts
Command Cable
RJ-45 Connector
End-to-End Pin Info
1 2 3 4 5 6 7 8
PIN NO.
4
7
8
3
2
6
1
5
1
2
3
4
5
6
7
8
To DTE
Device
(e.g., PC)
CLEAR TO SEND
TRANSMIT DATA
RECEIVE DATA
SIGNAL GROUND
PIN NO.
To Command
Port Connector
DB9F
RJ-45
RJ-45 connector plugs into Command Port of
MultiVOIP.
DB-9 connector plugs into serial port of command
PC (which runs MultiVOIP configuration
software).
Ethernet Connector
The functions of the individual conductors of the MultiVOIP’s Ethernet port are shown on a pin-by-pin basis below.
RJ-45 Ethernet Connector
Pin Circuit
Signal
Name
1 2 3 4 5 6 7 8
1
2
3
6
TD+ Data Transmit Positive
TD- Data Transmit Negative
RD+ Data Receive Positive
RD- Data Receive Negative
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