ASCOM Ascotel 2025, System Manual

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ascom Ascotel 2025/2045/2065
HBT_20321104_04/B0_en Cabling Interfaces 4.69
7.4.2.4 Terminals
ISDN Terminals
The ETSI protocol must be set in the interface configuration.
Up to 8 terminals of different types can be connected to one S bus.
• Standard ISDN terminals
• ISDN Terminal Adapter
• PC car ds
• Group 4 fax machines, etc.
The terminals are addressed via a single-digit terminal selection digit (TSD). On an
ISDN terminal the TSD must be entered under the "MSN" menu item.
Example:
The address of a terminal with TSD 6 on S interface 0.12 on the 2025 / 2045
mainboard is: Trunk connection 0.12-6.
In some cases ISDN terminals do not log on to the PBX with a TSD. The system
automatically enters the first ISDN terminal to log on without an TSD as TSD 1 in
the numbering plan. Other ISDN terminals without a TSD cannot be operated on
the same S bus since TSD 1 has already been allocated. The other terminals on the
bus must log on with TSD 2...8 on the PBX.
PC Operator Console Office 1550
The V2 protocol must be set in the interface configuration.
2 PC Operator Consoles Office 1550 can be connected to an S bus in V2 mode.