Vanguard Daughtercards
1-Port FXS/FXO The Vanguard 342 supports the FXS/FXO Daughtercard. This daughtercard supports
Voicevoice channel, using either an analog FXS or FXO interface. The 1-Port Voice FXS/FXO Daughtercard provides RJ11 connectors for FXS and FXO Ports. However, only one port can be active at a time.
Figure 2-5shows the FXS/FXO Voice Daughtercard connectors as they appear on the back panel.
\
FXSFXO
LOC 
REM 
Figure 2-5. 1-port FXS/FXO Voice Daughtercard Connector
2-Port Voice FXS The Dual FXS Daughtercard provides two FXS interface ports and support one voice channel each. The 2-Port Voice FXS Daughtercard has two RJ11 connectors for two FXS Ports. The two ports can be used simultaneously and each port supports one voice channel.
Figure 2-6shows the 2 Port Voice FXS Daughtercard connectors as they appear on the back panel.
1 2 FXS-1 FXS-2
LOC
REM 
Figure 2-6. 2-port FXS Daughtercard Connector
Note
Calls between two FXS ports within the same Vanguard 342 are not supported.
4-Port Voice FXS The Vanguard Quad FXS Daughter Card is supported on the Vanguard 342. The
Daughtercard 4-Port Voice FXS Daughtercard has four RJ11 connectors for four FXS Ports.The new software for this card is in release 6.0 and greater.
Figure 2-7shows the 4-Port Voice FXS Daughtercard connectors as they appear on the back panel.
FXS-1 FXS-2 FXS-3 FXS-4
Figure 2-7. FXS Daughtercard