Aastra OpenCom 131 User Guide - Page 58
Upn Ports, 3.12.3 a/b Ports
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Installation Connectible Terminals 3.12.2 Upn Ports A system terminal can be connected to every Upn port by a twin-wire cable. The Aastra 6771 / 6773 / 6775 (OpenPhone 71 / 73 / 75) and the OpenPhone 61 / 63 / 65 are cord-bound system terminals. The OpenPhones 63 and 65 can be cascaded on a Upn adapter so that you can operate two OpenPhones on one Upn port (for further details, refer to the "OpenPhone 61, 63, 65" user guide). The RFP 22 / 24 base station is required for the use of cordless system telephones (e.g. OpenPhone 2x, Aastra 142d or Aastra 610d / 620d /630d). Note: You can only operate DECT base stations on the ports of Upn interface cards. These cards are available for an OpenCom 130 and an OpenCom 150. If this base station is connected to a Upn port of an interface card, four simultaneous calls are possible with the handsets. If the base station is connected to two Upn ports, eight simultaneous calls are possible. However, note that only as many external connections are possible as there are externally connected B-channels available. If you use a cordless handset such as the Aastra 610d / 620d /630d, this can also be contacted by other base stations using the GAP/CAP standard. 3.12.3 a/b Ports The a/b ports a/b1 to a/b4 can be used for connecting analogue terminals. These can be for voice or data communication, and use DTMF or pulse dialling, e.g. ■ analogue telephones ■ class 3 fax machines ■ analogue modems (external or internal) ■ external devices for music on hold ■ external voice mail systems. 56