Aastra OpenCom 510 User Guide - Page 82
MX+S01-8, All eight S
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Modules MX+S01-8 8.6 MX+S01-8 Field of Application The MX+S01-8 interface card provides eight 8 S0 interfaces which can be used for either external connections, i.e. to connect the OpenCom 510 to a digital network (PSTN, Public Switch Telephony Network), or internal connections, i.e. to connect digital terminals (ISDN telephones, ISDN fax machines etc.) to the OpenCom 510. The MX+S01-8 interface card can be installed in any of the slots (1 to 12) of the OpenCom 510 (see Slots starting on page 27). Technical Information ■ The MX+S01-8 interface card can also be installed in a slave system. ■ DIP switches S1 to S16 can be used to activate a 100-ohm terminal resistor (default: on). For further information, refer to Termination starting on page 41. ■ The power failure circuit can be activated by means of DIP switches S17 to S20 (default: off ). If activated, the system will connect the first S0 interface with the eighth S0 interface in the event of a power failure; provided the system has been configured accordingly, external calls can be made using an emergency telephone. For further information, refer to Power Failure starting on page 37. ■ All eight S0 interfaces can be configured either as subscriber (internal) interfaces or as trunk (external) interfaces. For further information, refer to S0 Ports starting on page 40. ■ The MX+S01-8 interface card can provide the system clock signalling. ■ The MX+S01-8 interface card runs on software acquired from the system. After the card has been installed it will automatically load the required software. 80