Auerswald COMpact 4000 Operation Manual page 38

Important Information
Product Details
Basic Assembly and Extensions
Internal S Port
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An internal S port offers similar options as an ISDN connection with the PTMP connection type
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and is suitable for connecting to the following end devices:
• COMfortel 1200/1400/1600/2600 system telephones (firmware version 1.6A, or later)
• ISDN telephones in compliance with the Euro ISDN Standard (DSS1)
• ISDN PC controllers in compliance with the Euro ISDN Standard (DSS1)
Important: The power consumption of the end devices on an S
may total a maximum of 4 W. A maximum of 24 W is available for all the a/b-
, S - und U
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During a call, the COMfortel 1400 and COMfortel 2600 allow you to accept
another call and record it simultaneously on the local answering machine.
When a second call is signalled as waiting, the PBX reserves the second call
channel of the internal S
second telephone at the same port cannot initiate a call, accept an incoming
call and pick up a call. Simultaneous call acceptance and recording by the
local answering machine is not possible while another telephone is on a call
at the same port. In order to ensure that the full scope of functions is
available, you should connect only 1 telephone per port.
Internal U Port
P0
An internal U port is a 2-core interface that becomes useful, for example, if existing 2-core
P0
lines in an analogue installation are to be used. It is suitable for connecting to one of the
following end devices:
• COMfortel 1200/1400/1600/2600 system telephones (firmware version 1.6A, or later)
• COMfortel 1100/1500/2500/2500 AB system telephones (firmware version 4.4I, or later)
Other ISDN end devices can only be connected to the U
a S port with two RJ-45 sockets by converting 2-wire to 4-wire. It is suitable for connecting to
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the following terminal devices:
• COMfortel DECT 900 Bases for COMfortel DECT 900C/900
• ISDN telephones in compliance with the Euro ISDN Standard (DSS1)
• ISDN PC controllers in compliance with the Euro ISDN Standard (DSS1)
See note in the previous chapter, Internal S
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ports together.
P0
port for this function. At this particular time, a
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COMpact 4000 - Firmware V6.6A - Installation, Operation and Configuration V03 03/2016
port via a U
P0
Port.
/U port
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/S adapter. It provides
P0 0