Aastra OpenCom 510 User Guide - Page 47
Technical Information, Note on the MS+UPN2-8 Interface Card
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Interfaces and Connectible Terminals Upn Ports The (corded) OpenPhone 63 and OpenPhone 65 system telephones can be cascaded by means of a Upn adapter, which enables you to connect two OpenPhones to one Upn port. For further information, refer to the "OpenPhone 61, 63, 65" user guide. The RFP 22 DECT base station can be used to connect the OpenPhone 26 and OpenPhone 27 DECT handsets. The OpenPhone 27 has an USB interface for data transmissions and Internet access. Note that handsets such as the OpenPhone 26 can also be used in conjunction with base stations operating with the GAP/CAP standard. Note on the MS+UPN2-8 Interface Card Upn interfaces can only be used to connect DECT base stations if the MS+UPN2-8 has been installed in the master system; if this card is in the slave system, it is not possible to connect any DECT base stations to the card's Upn interfaces. Note on the MS+UPN1-8 Interface Card The Upn interfaces of the MS+UPN1-8 interface card cannot be used to connect DECT base stations. 5.3.2 Technical Information The Upn ports have been implemented as RJ45 sockets. Each of the devices listed above can be connected to the Upn interface by means of a two-wire 1:1 cable. System terminals come with a suitable cable for connection to the RJ45 socket of the interface. A two-wire cable connected to a Upn port can be up to 1000 m long, provided it is a 0.6 mm twisted-pair cable. Each Upn port has a power feed of approx. 2.1 W. The short-circuit-proof feed voltage is -42 V. 45