User's Manual

• Trunk daughter cards — Most base cards can be fitted with a trunk daughter card to
support the connection of trunks to the base card. The following trunk daughter cards are
supported:
• Analog trunk card — This card allows the base card to support 4 analog loop-start
trunks. The analog phone ports do not include a ringing capacitor. Where this is a
requirement, connection should be via a Master socket containing ringing capacitors.
If fitted with an analog trunk daughter card, during power failure phone port 8 is
connected to analog trunk port 12. A maximum of 4 analog trunk cards are allowed
per control unit.
• BRI trunk card — This card allows the base card to support up to 4 BRI trunk
connections, each trunk providing 2B+D digital channels. The card is available in 2
port (4 channels) and 4 port (8 channels) variants. A maximum of 4 BRI trunk cards
are allowed per control unit. For S-Bus connection, the card can be switched from
To trunk mode to So mode. This mode requires additional terminating resistors and
an ISDN crossover cable connection.
• PRI trunk card — This card allows the base card to support up to 2 PRI trunk
connections. The card is available in single and dual port variants. The card can be
configured for E1 PRI, T1 robbed bit, T1 PRI or E1R2 PRI trunks. A maximum of 4
PRI trunk cards are allowed per control unit. The B5800 Branch Gateway system
supports 8 unlicensed B-channels on each IP500 PRI-U port fitted. Additional B-
channels, up to the capacity of ports installed and PRI mode selected require
Universal PRI (Additional Channels) licenses added to the configuration. These
additional channels consume the licenses based on which additional channels are
configured as in-service from port 9 of slot 1 upwards. D-channels are not affected
by licensing.
• Combination cards — Combination cards are pre-paired base and trunk daughter cards.
They provide 6 digital station ports, 2 analog phone ports, 10 VCM channels and either
4 analog trunk ports or 4 BRI channels (2 ports). The trunk daughter card cannot be
removed or replaced with another type of trunk daughter card.
• External expansion modules — External expansion modules are used to add additional
analog and digital ports. If the control unit is fitted with a 4–port expansion base card, then
up to 12 external expansion modules are supported. The following external expansion
modules are supported:
• Analog trunk module — This module rovides an additional 16 analog ports for
connection of analog trunks. It supports both loop-start and ground-start trunks.
• BRI So8 module — This module provides 8 ETSI BRI-So ports for the connection
of ISDN devices. This module is not intended to support BRI trunks.
• Digital station module — This module provides, depending on variant, an
additional 16 or 30 DS ports for supported Avaya digital phones.
• Phone module — This module provides, depending on variant, an additional 16 or
30 phone ports for analog phones.
Overview
20 Implementing the Avaya B5800 Branch Gateway November 2011
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