1 Description
These operating instructions describe the functions for both elmeg C300 and el-
meg CS300 ISDN telephones.
You can connect the ISDN telephone at the Euro-ISDN point-to-point connection
(DSS1 protocol) provided by your network service provider, or at the internal ISDN con-
nection (point-to-point connection DSS1 protocol) in a PABX system. The ISDN tele-
phone is linked to the ISDN network via an ISDN jack (Western or RJ45). After being con-
nected to the ISDN network, your ISDN telephone is immediately ready for operation
and can fully utilize its configured performance features.
Up to eight (8) ISDN terminal devices can be connected and managed at a network ter-
mination of a network service provider. Of these eight (8) available lines, one supply line
(max. 4 W) is available for ISDN telephones without their own internal power supply. A
link can be set up simultaneously for two (2) ISDN terminal devices at each base access
terminal (2 B channels, 1 D channel).
An internal ISDN connection for a PABX system is comparable to an ISDN base access
terminal (point-to-point connection) of a network service provider. Up to eight (8) ISDN
terminal devices can be connected and managed at each internal ISDN connection. The
power available at this internal ISDN connection determines how many terminal devices
can be supplied with power by the PABX system. Refer to the operating instructions for
your PABX, or contact the PABX manufacturer for more details about this. A link can be
set up simultaneously for two (2) ISDN terminal devices at each internal ISDN connecti-
on.
The elmeg CS300 ISDN telephone provides system features when connected to certain
elmeg PABX systems. The internal connection (S0 bus) on these PABX systems auto-
matically interfaces with the elmeg CS300 ISDN telephone. Please refer to the operating
instructions of your PABX to determine whether these typical system performance fea-
tures are provided with the various elmeg telephones.
The typical system performance features described in these operating instructions
apply only to the elmeg CS 300 ISDN telephone, and not to the elmeg C300 ISDN
telephone.
1.1 Safety instructions
•Unauthorized opening of the telephone and improper repairs may result
in risk of injury for the user.
•Do not expose the inside of the telephone to any liquids. This would pose
a risk of electrical shock If you expose the inside of the telephone to liquids
the telephone can be destroyed.
•You should not connect or disconnect any lines during thunderstorms.
•To prevent mutual interference, do not install your system telephone in the
immediate vicinity of electronic devices such as stereo equipment, elec-
tric office equipment or microwave units.
1
Description
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