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Connecting Devices
Besides the Eumex 504PC SE, you can operate additional ISDN terminals (e.g. ISDN
telephones) on the NTBA. To simplify the connection of additional devices, you will
find an external S
0
port on the lower side of the Eumex 504PC SE. This is the looped-
through S
0
bus from the NTBA.
You can use the external S
0
port to connect an additional ISDN terminal or a multiple
ISDN socket for more than one terminal. A fixed installation from the NTBA should
only be done by a qualified electrician.
Calls between terminals connected to the looped-through NTBA S
0
bus and the ana-
logue terminals connected to the Eumex 504PC SE are routed via the telephone
exchange and are thus not internal calls.
NTBA
T-ISDN External S
0
Eumex 504PC
SE
Eumex 504PC
SE
Additional terminals
S
0
bus
Additional Terminals on the S
0
Bus