Installation manual

2-14 Hardware Description
Vanguard Networks Daughtercards
Services.
• ITU-T G.711A (A-law) and G.711U (-law) interface voice encoding.
• ITU-T G.723, G729, and Vanguard Networks proprietary CVSELP packet
v
oice compression.
Figure 2-18 shows the ISDN BRI Voice Daughtercard connectors as
they appear on
the back panel.
Figure 2-18. ISDN BRI Voice Daughtercard Connectors
2-Port Voice FXS
Daugh
tercard
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 2-19 shows the 2 Port Voice FXS Daughtercard connectors as they appear on
the back panel.
Figure 2-19. 2-Port Voice FXS Daughtercard Connectors
Enhanced ISDN
BRI-S/T
Daughtercard
This card provides 2B+D Channel through a BRI S/T in
terface. It conforms to ITU
I.430, is LAPD:ITU Q.921 compliant, and supports:
•Integral X.31
• Q.931 dial support
• NI1, 5ESS, DMS-100, ETSI, Euro Numeris switch types
• D Channel Packet Mode
• Leased Circuit Services (I Interface)
• Permanent B for German Monopol support or Japan High-Speed Digital
Figure 2-20 shows the ISDN BRI-S/T Daughtercard connectors as they appear on
the back panel.
Figure 2-20. Enhanced BRI-S/T Daughtercard Connectors
S-BUS
100
HI Z
S-BUS
BRI S
LOC
REM
FXS-1 FXS-212
BRI-S/T DATA
LINK
D-ACT
TERMINAL LINE