Connecting ISDN End Devices
49
Connecting ISDN End Devices Directly to the Internal U
P0
Port
Important: Connecting end devices directly is only
possible on 19" casing variants.
Requirements
– Minimal distance between the devices Maximum
length of the connecting cables to be used: 10 m.
Note: If the end device is placed a considerable
distance away from the PBX, the cable and the wall
sockets must be permanently installed. See
.
– One U
P0
/S
0
adapter
Note: To connect a single COMfortel 1100/1500/
2500/2500 AB system telephone, no U
P0
/S
0
adapter
is required. If two COMfortel 1100/1500/2500/2500
AB system telephones should be connected to the
U
P0
port, another U
P0
/S
0
adapter is required.
Steps to Take
1.
Single COMfortel 1100/1500/2500/2500 AB: Connect
the COMfortel 1100/1500/2500/2500 AB to the RJ-45
socket on the internal U
P0
port.
Another end device or two COMfortel 1100/1500/
2500/2500 AB units: Insert the U
P0
/S
0
adapter into
the RJ-45 socket on the internal U
P0
port.
2.
Another end device or two COMfortel 1100/1500/
2500/2500 AB units: Connect the end devices to the
U
P0
/S
0
adapter.
Further Steps
쑱
To finish commissioning, you need to set up a phone
number for the end device in the COMset
configuration manager.
쑱
To finish commissioning, you need to set up an
internal phone number for each end device in the
COMset configuration manager.
Installing Cable and the Wall Socket on the Internal U
P0
Port
Warning: Power surges, which can occur during
electrical storms, can cause life-threatening electric
shocks or damage/destroy the PBX.
씮
Let a skilled electrician lay all the cables inside the
building.
Note: For a structured cable installation configured
on one of the 19" casing variants, CAT5 cables and
CAT5 wall sockets are used instead of the cables and
wall sockets listed here.
Important: For structured cable installation on a 19"
casing variant, the line length all of the applicable end
devices must be taken into account.
Requirements
– Installation cable (for example, J Y (St) Y 2x2x0.6)
with the following characteristics:
One twisted pair per U
P0
port
unscreened; however: screened for unfavourable
conditions, for example, near a strong transmitter
or an electrical power line
– An ISDN connection socket (for example, IAE or
UAE8)
Caution: Terminators integrated into the wall sockets
are destroyed and can therefore cause damage to the
device.
씮
Do not install terminators on one end of a line
connected to the U
P0
port, as opposed to the S
0
port. Terminators are already integrated into the
end devices (COMfortel 1100/1500/2500/2500
AB or U
P0
/S
0
adapters).
씮
Remove the terminators already integrated in the
wall sockets in order to use the sockets on the U
P0
port.
– Distance/line length between the devices depends on
the cable used:
Maximum 600 m for a screened cable with a pair
diameter of 0.6 mm
Maximum 1000 m for an unscreened cable with a
pair diameter of 0.6 mm
– One U
P0
/S
0
adapter, depending on the device to be
connected
Note: To connect a single COMfortel 1100/1500/
2500/2500 AB system telephone, no U
P0
/S
0
adapter
is required. If two COMfortel 1100/1500/2500/2500
AB system telephones should be connected to the
U
P0
port, another U
P0
/S
0
adapter is required.
Note: When using a U
P0
/S
0
adapter, you do not need
to use an ISDN wall socket. The U
P0
/S
0
adapter can
be mounted permanently on the wall and firmly
connected with both screw terminals on the back of
the PBX. See
.
Steps to Take
1.
Lay the line.
Note: Prevent interference. Avoid laying long lengths
of parallel lines, especially next to mains. Twist the
pairs.
Summary of Contents for COMmander Basic.2
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