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1 • General Information
Port
BRI 1
ISDN BRI RJ-45 socket that connects the SmartNode with an ISDN terminal over an S or S/T inter-
face. BRI 2 may be used as a fallback in conjunction with BRI 1. See 'Hardware Bypass' below.
BRI 2
ISDN BRI RJ-45 socket that connects the SmartNode with an ISDN device over an S or S/T inter-
face. The pin out and protocol is software configurable. BRI 1 may be used as fallback in conjunc-
tion with BRI 2. See 'Hardware Bypass' below.
BRI 3
ISDN BRI RJ-45 socket that connects the SmartNode with an ISDN device over an S or S/T inter-
face. The pin out and protocol mode is software configurable.
Description
The IC-4BRV interface card provides four ISDN basic rate interface (BRI) ports, together allowing up to 8
ISDN B-channels to work in parallel.
Operating modes
With the Interface Card IC-4BRV Version 1 and 2, Ports 0 and 1 can only be Master (Net). Ports 2 and 3 can
be either Master (Net) or Slave (User). On IC-4BRV Version 3 all four ports can be either Master (Net) or
Slave (User).
The four ports can be used in three different modes, which are tabulated in
•
An X in the NET column of the table means that the port performs network side signaling and that the pin
out corresponds to an ISDN NT. A NET port is connected to an ISDN terminal, i.e. a telephone or a PBX.
•
An X in the USR column means that the port performs user side signaling and the pin out corresponds to
an ISDN terminal. The two ports (2, 3) have configurable pin outs.
•
An X in the HW Bypass column refers to the fallback mode.
The possible BRI port configurations are listed in
Hardware bypass
BRI 1 and BRI 2 can be used to provide an emergency service. If a power failure occurs a relay connects these
two interfaces with each other.
•
BRI 1 must be connected with a telephone terminal or PBX if the bypass is active.
•
BRI 2 must be connected to the ISDN network if the bypass is active.
38
Table 14. IC-4BRV port description
table
Table 15. BRI Port Configurations
Port
NET
BRI 0
X
BRI 1
X
BRI 2
X
BRI 3
X
SmartNode 1000 and 2000 Series Getting Started Guide
Description
table
15.
USR
HW Bypass
X
X
15.
X
X
Interface cards descriptions
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