Installation Connectible Terminals
56
3.12.2 U
pn
Ports
A system terminal can be connected to every U
pn
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 cas-
caded on a U
pn
adapter so that you can operate two OpenPhones on one U
pn
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 U
pn
interface cards. These cards are available for an
OpenCom 130 and an OpenCom 150.
If this base station is connected to a U
pn
port of an interface card, four simulta-
neous calls are possible with the handsets. If the base station is connected to two
U
pn
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.
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