12
Terminators for external S0 access S0 X/1
For the point-to-multipoint connection, the
two switches S4101 for the 100 Ohm termi-
nators must be :
-
closed
if the external S0 connection is
connected directly to the NTBA or to the
last IAE / UAE socket and the 100 Ohm
terminators in the socket are not con-
nected,
-
open
if the 100 Ohm terminators are
connected in the last IAE / UAE socket
or the telephone system is not the last
ISDN terminal on the point-to-multipoint
connection.
By means of the ISDN connecting cable,
connect the ISDN telephone system to an
ISDN socket of the S0 bus.
If the point-to-multipoint connection does
not consist of a S0 bus, you can connect the
ISDN telephone system directly to the NTBA:
External S0 connection, fixed S0 X/1 (Western socket) ¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢
Connection to a point-to-point
connection
You can only connect one ISDN telephone
system to an ISDN point-to-point connec-
tion. You cannot connect any further ISDN
terminals.
Using the ISDN connecting cable, connect
the ISDN telephone system directly to the
NTBA or to an ISDN socket (IAE / UAE) that
is connected to the NTBA.
Terminators for external S0 connection
S0 X/1
For a point-to-point connection, the two
switches S4101 for the 100 Ohm termina-
tors must be closed ("as-delivered" setting).
Connection to a point-to-multipoint
connection
The point-to-multipoint connection may
consist of an S0 bus. Up to 12 ISDN sockets
(IAE / UAE) may belong to this S0 bus. Be-
sides the ISDN telephone system, you can
connect up to seven further ISDN terminals
to the S0 bus.
