Connecting For Configuration - Teldat Atlas 250 Installation Manual

Teldat S.A.
ances. Placing these terminal resistances in the correct position is important because, otherwise, this can lead to er-
rors in data (or voice), particularly if the "S" bus line is long. On leaving the factory, the pushbutton is in the "ON" pos-
ition by default.
• The only 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 ter-
minal (NT1, TR1, etc) or is in the last position on the ISDN "S" bus.
Location as the only or last terminal
Fig. 4:
• Intermediate position in the ISDN "S" bus
The "TERM" pushbutton must be in the OFF position if the router occupies an intermediate position in the ISDN "S"
bus.
Location in an intermediate position in the bus
Fig. 5:

2.2.4 Connecting for configuration

The Atlas 250 routers have a DB-9 female connector on the rear panel referred to as "AUX" , which provides access
to the device local console for configuration and monitoring purposes. In order to use this, you must connect the
"AUX" port to an asynchronous terminal (or to a PC with terminal emulation).
Connection for configuration/monitoring via console
Fig. 6:
Atlas 250
2 Installation
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