I - 2.2.1. Bri Connection - Teldat ATLAS 150 Installation Manual

I - 2.2.1. BRI Connection

The BRI interface has a 4 wire RJ45 female connector in order to connect to the S
bus coming from the ISDN network terminator (NT1 or TR1).
In order to connect, use the cable with RJ45 male connections provided with the
device.
Passive-Bus terminal resistances
ATLAS 150
The
connect the BUS-S termination resistances.
resistances in the correct position is important as contrariwise this can lead to
errors in data (or voice), particularly if the "S" bus line is long. On leaving the
factory, the pushbutton, by default, is in the "ON" position.
•
The only or last terminal on the ISDN "S" bus
The "TERM" pushbutton must be in the ON position if the router is the only
element connected to the network terminal (NT1, TR1, etc) or is in the last
position on the ISDN "S" bus.
hecho por M.A. Berrojo
T eldat
•
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.
router has a pushbutton (labeled as "TERM") in order to
Atlas
Location as the only or last terminal
ATLAS 150
Installation
I-6
The placing of these terminal
NT1 / TR1
U interface
S interface
(2 wires)
(4 wires)
ISDN
Doc. Dm697-I
Rev. 1.0