Operating Modes; Hardware Bypass - Patton electronics SmartNode 1200 Getting Started Manual

SmartNode 1000 and 2000 Series Getting Started Guide

Operating modes

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.
Interface cards descriptions
table
Table 14. BRI Port Configurations
Port NET
BRI 0 X
BRI 1 X
BRI 2 X
BRI 3 X
table
14.
USR HW Bypass
X
X
1 • General Information
14.
X
X
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