Alcatel-Lucent omniacces-voip gateway User Manual
Voice Switching Daughtercard — Euro BRI ISDN
Page 2-13
Voice Switching Daughtercard — Euro BRI ISDN
The Euro BRI voice switching daughtercard (VSB) is used to provide the European ISDN BRI
voice port connections in Alcatel’s H.323 VoIP gateways. Because many aspects of this card
are similar to the VSD T1/E1 previously discussed; see also VoIP Daughtercard Types on page
2-2 and Voice Switching Daughtercard — Digital on page 2-6.
voice port connections in Alcatel’s H.323 VoIP gateways. Because many aspects of this card
are similar to the VSD T1/E1 previously discussed; see also VoIP Daughtercard Types on page
2-2 and Voice Switching Daughtercard — Digital on page 2-6.
Digital Signal Processors (DSPs) and Available Channels
Unlike the VSD T1/E1 VoIP daughtercard shown previously, the VSB card does not support
any additional DIMMs, only the two standard DSP which provide the VSB with eight chan-
nels. See also Digital Signal Processors (DSPs), DIMMs and Available Channels on page 2-4
for a more details.
any additional DIMMs, only the two standard DSP which provide the VSB with eight chan-
nels. See also Digital Signal Processors (DSPs), DIMMs and Available Channels on page 2-4
for a more details.
VSB Deadman Switch
There are two Deadman switches on the VSB daughtercards. One Deadman switch is for
ports A and B (1 and 2) and the other is for ports C and D (3 and 4); on a VSX switching
module with two VSBs, the relays switches on the second card would be for ports A and B (5
and 6) and for ports C and D (ports 7 and 8). For more details on the Deadman switch, see
VSD Deadman Switch on page 2-8. Port numbers can vary depending on the VoIP switch
configuration; see also VoIP Daughtercard Port Numbering Schemes on page 2-28.
ports A and B (1 and 2) and the other is for ports C and D (3 and 4); on a VSX switching
module with two VSBs, the relays switches on the second card would be for ports A and B (5
and 6) and for ports C and D (ports 7 and 8). For more details on the Deadman switch, see
VSD Deadman Switch on page 2-8. Port numbers can vary depending on the VoIP switch
configuration; see also VoIP Daughtercard Port Numbering Schemes on page 2-28.
♦ Note ♦
For the deadman switch to operate properly on the
VSB, ports 1 and 3 must be configured as TE, and ports
2 and 4 must be configured as NT (ports are TE, NT,
TE, NT).
VSB, ports 1 and 3 must be configured as TE, and ports
2 and 4 must be configured as NT (ports are TE, NT,
TE, NT).
VSB NT (LT)/TE Cross-Over Toggle Switch
There are four NT (LT) / TE Cross-Over toggle switches on the VSB daughtercards. Each
switch is factory set to NT. For more information on ISDN terminators, seeVSB Jumpers on
page 2-16, and also Chapter 3, “Network Dialing Schemes.”
switch is factory set to NT. For more information on ISDN terminators, seeVSB Jumpers on
page 2-16, and also Chapter 3, “Network Dialing Schemes.”
The NT (LT)/TE toggle switch is physically similar to the VSD Cross-Over toggle switch on the
VSB, but functionally different as it is used to select either a network terminator or terminal
equipment as an endpoint. For a description of the Cross-Over toggle switch on the digital
voice switching daughtercards, see VSD Cross-Over Toggle Switch on page 2-9, and Cabling on
page 2-10.
VSB, but functionally different as it is used to select either a network terminator or terminal
equipment as an endpoint. For a description of the Cross-Over toggle switch on the digital
voice switching daughtercards, see VSD Cross-Over Toggle Switch on page 2-9, and Cabling on
page 2-10.
NT (LT) means that each NT port emulates the “network” side or “line terminator” point of the
ISDN connections to the ISDN/PSTN network, e.g., connections to PBX, Key Set, BRI TelSet,
Group 4 (ISDN) facsimile machine. TE means that each TE port emulates the “terminal” side
of the ISDN connections to the ISDN network, e.g., PBX, Key Set, CO (Central Office) switch
and ISDN telephone switch.
ISDN connections to the ISDN/PSTN network, e.g., connections to PBX, Key Set, BRI TelSet,
Group 4 (ISDN) facsimile machine. TE means that each TE port emulates the “terminal” side
of the ISDN connections to the ISDN network, e.g., PBX, Key Set, CO (Central Office) switch
and ISDN telephone switch.
VSB Pinouts
The Euro BRI VoIP daughtercard (VSB) uses the 8-pin, RJ-45 jacks in the figures and tables on
the following page to connect the voice ports on the card to voice devices in the VoIP
network that support digital connections, e.g., PBX, Key Set, BRI TelSets, Group 4 (ISDN)
facsimile machine, CO (Central Office) switch, and ISDN telephone switch. For more details
on the VSB pinouts, see VSD Pinouts on page 2-11.
the following page to connect the voice ports on the card to voice devices in the VoIP
network that support digital connections, e.g., PBX, Key Set, BRI TelSets, Group 4 (ISDN)
facsimile machine, CO (Central Office) switch, and ISDN telephone switch. For more details
on the VSB pinouts, see VSD Pinouts on page 2-11.