Vanguard Managed Solutions 3400 Series ユーザーズマニュアル

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Hardware Description 
2-9
Vanguard Networks Daughtercards
4-Port Voice FXO 
Daughtercard
The Vanguard Quad FXO Daughter Card is supported on the Vanguard 3460/3480. 
The 4-Port Voice FXO Daughtercard has four RJ11 connectors for four FXO Ports.
Figure 2-11 shows the 4-Port Voice FXO Daughtercard connectors as they appear on 
the back panel.
Figure 2-11. FXO Daughtercard
V.90 Modem 
Daughtercard
The V.90 modem daughtercard provides Async PPP dial back-up for a customers’ 
applications or can be used for Async dial connections such as remote CTP access. 
The V.90 uses a dual RJ-11 for connection to central offices, PBXs or telephone 
systems. 
Figure 2-12 shows the rear panel connectors on the V.90 modem daughtercard. For 
installation instructions, refer to the Vanguard Daughtercard Installation Guide 
 
(Part Number T0020).
Figure 2-12. V.90 Modem Daughtercard Connectors
FXO-1
FXO-2
FXO-3
FXO-4
RI OH
CD
.
MR
RXD
LINE
PHONE