Ascotel IntelliGate 2025/2045/2065
656 Planning DECT systems Part 3
Radio unit distances to the PBX
When planning a system it is important to note that with a SB-4 radio unit the
power supply can be provided from the AD2 bus for distances of up to 660 m
(wire diameter 0.5 mm). From 660 m up to the maximum for the AD2 bus of
1200 m, a local power supply has to be provided with the recommended plug-in
power supply unit, d. h. you need to provide a 230 VAC connection.
A local power supply is not required for the SB-8 radio unit as it can be powered
via the AD2 bus up to 1200 m.
Tip:
The SB-8 radio unit can also be powered locally to relieve the terminal
power supply. This can also prevent the use of an auxiliary terminal
power supply.
5.6 Measurements
We are assuming that the project planner is familiar with the information con-
tained in the previous sections of this document. The equipment should be set in
accordance with "General / Function", page 637.
A word about handling batteries
The batteries supplied with the test kit are state of the art. Nonetheless a few
points need to be observed to ensure perfect operation:
• It takes a few charge cycles for the batteries to reach their nominal capacity.
Therefore discharge / charge the batteries several times before use; the charg-
ing unit inside the test kit provide the discharge function.
• Self-discharge amounts to around 1% per day. Re-charge before use; this
process takes only a short while with the charging unit.
• Always remove the batteries from the equipment as soon as the measurements
are completed and recharge them immediately.
• The batteries need to be discharged / recharged from time to time if they not
used for a longer period of time.
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