T-Home Comfort Pro S, Руководство по установке

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Installation Port assignment, Termination, Cable Length
t
If, for example, you have connected an IAE socket to an internal S
0
port, and wish to
switch the S
0
port to external operating mode, you will need a crossover ISDN connec-
tion cable to connect the IAE socket to an NTBA. The assignment of a crossover con-
nection cable is described in the chapter on PBX Networking under the heading
Direct Connection starting on page 114.
U
pn
Ports
U
pn
ports enable you to connect the digital system telephones Comfort Pro P 100, 300 or 500 using a twin-
wire cable. You can also connect DECT base stations to a U
pn
port.
If you want to use cordless DECT handsets (e. g. Comfort Pro CM 300 handset) you will need the DECT base
station Comfort Pro CB 300. If the DECT base station is connected to a U
pn
port, four calls can be made
simultaneously using the handsets. If the base station is connected to two U
pn
ports, eight calls can be made
simultaneously. Please note however, that you can only make as many simultaneous external connections as
there are externally-connected B channels available.
The length of a twin-wire cable for a U
pn
port must not exceed a maximum of 1000 m. This cable may only be
laid inside buildings.
The length of a twin-wire cable for a U
pn
port on a U
pn
interface card may not exceed a maximum of 1000 m,
where a 0.6 mm cable (with twisted pairs) is used.
Each U
pn
port has a power consumption of about 3 W.
Pin assignment of U
pn
ports
To connect a digital system telephone or DECT base station,
connect the pressure terminals to a UAE socket.
RFP with 2 U
pn
U
pn
/RFP with 1 U
pn
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8