1.2.1.2 ISDN Connection
The ISDN interface has a female RJ45 connector in order to connect to the 4-wire S bus coming from the ISDN (NT1
or TR1) network terminator.
For this connection, you can use the cable with male RJ45 connectors handed with the device.
Passive-Bus termination resistors
The ATLAS 152 routers have a pushbutton (labeled TERM.) to connect the BUS-S termination resistors.
Fig. 9:
Switch for the BUS-S termination resistors
• Single or last terminal in the ISDN “S” bus
The TERM. pushbutton must be in the ON position if the router is the only element connected to the network (NT1,
TR1, etc.) terminator, or if it is the last in the ISDN “S” bus. The device is configured in this position by default.
Fig. 10:
Single or last terminal
• Intermediate position in the ISDN “S” bus
Note
The TERM pushbutton must be in the OFF position if the router occupies an intermediate position in
the ISDN “S” bus.
1 Installing the Router
Teldat S.A.
6
ATLAS 152
Содержание ATLAS 152
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