DETEWE OpenCom 510, Руководство пользователя

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39
Interfaces and Connectible Terminals U
pn
Ports
DECT Base Station
Connection Variants
A DECT base station can be con-
nected to either one or two U
pn
in-
terfaces:
■
If the DECT base station is con-
nected to one U
pn
interface, four
simultaneous calls or connec-
tions can be made through the
handsets.
■
If the DECT base station is con-
nected to two U
pn
interfaces,
eight simultaneous calls or con-
nections can be made through
the handsets.
Please note that it is not possible to
establish more simultaneous exter-
nal connections than there are ex-
ternal B channels.
To connect a DECT base station to
two U
pn
interfaces, you can combine
two U
pn
ports on the MS+UPN2-8
interface card: U
pn
ports 1+2, 3+4,
5+6 or 7+8 (U
pn
port 2 is connected
to U
pn
port 1, U
pn
port 4 to U
pn
port 3 etc.). Ports are combined by
setting the DIP switches on the card
accordingly. In this configuration,
the DECT base station must be con-
nected to the first U
pn
port of the
pair by means of a 1:1 cable (system
telephone cable).
Pin Assignment
U
pn
interface pin assignment
The following table explains the U
pn
interface pin assignment.
*) If the DIP switches are set accord-
ingly, the conductors of the adjacent
U
pn
port will be connected here; use
only the first U
pn
port in this config-
uration.
Setting DIP Switches
1. Remove the interface card by
following the instructions in In-
stalling Interface Cards starting
on page 25.
2. The DIP switches are protected
by a plastic foil. Use a pointed
tool such as a screwdriver to
slide the DIP switches to the
Pin Number Assignment
1 Not used
2 Not used
3 U
pn
a *)
4 U
pn
a
5 U
pn
b
6 U
pn
b *)
7 Not used
8 Not used
1 2 3 4 5 6 7 8