Vanguard 3400 Series, Руководство по установке

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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