DETEWE OpenCom 510, Руководство пользователя

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101
PBX Networking PBX Cascading
Please note: If you change the
type of slave system later on, the port
settings that have been made will be
deleted.
The master system then initial-
ises the slave system. This may
involve transfer of firmware (op-
erating software) from the mas-
ter system to the slave system.
This can take a few minutes.
9. Configure the system telephone
connected to the slave system
for testing purposes in the
Con-
figurator . In the
PBX Configuration: Ports: Upn
dialogue, click on one of the ad-
ditionally displayed entries of
the type
Upn 1/m/n (1: slave
system, m: slot number, n: U
pn
port number) .
Note: Changes to the configura-
tion while initialising the slave system
may trigger error reports referring to
the ongoing initialisation.
You can see that the initialisation
has been completed from the dis-
play on the system telephone con-
nected to the slave system.
Notes
Observe the following when operat-
ing a cascaded PBX system:
■
All U
pn
, S
0
and a/b ports of the
slave system interface cards can
be used with appropriate tele-
phones. All features of system
telephones on U
pn
ports are
available without restriction.
■
The S
0
ports of the slave system
can also be used for trunk lines
or for PBX networking (see
PBX
Networking starting on
page 102).
■
It is not possible to operate a
DECT base station on one of the
U
pn
ports of the slave system.
■
The ISDN-L1 reference clock sig-
nal is always transferred from
the master to the slave system
and must be acquired from an S
0
port –or preferably an S
2M
-
port– on the master system. The
master system therefore needs
to be connected to at least one
ISDN trunk line.
■
It is possible to operate an S
2M
interface card of the type
MS+S2M1-1 in the slave system.
As the ISDN-L1reference clock
signal supplied by an S
O
inter-
face card is not precise enough,
you will also need to operate an
S
2M
interface card in the master
system.
■
The slave system cannot be ad-
dressed directly through a LAN.
For configuration, always use
the Web console of the master
system.