Aastra Ascotel IntelliGate 2065 - Page 774

Ascotel IntelliGate 2025/2045/2065
774 Cabling interfaces Part 4
Example 2
2 Office 30 without expansion keypad
Power requirements as per Tab. 4.34: 2 x 830 mW = 1660 mW.
Tab. 4.35 indicates:
• Maximum line length for a wire diameter of 0.4 mm: 569 m
• Maximum line length for a wire diameter of 0,6 mm: 1200 m
As the two terminals belong to the old system family, the greyed area of Tab.
4.35 is applied here, i. e. the permissible line length is only 640 m instead of
1200 m.
Example 3
Evaluation of an existing line installation with two partial lines:
Tab. 4.36: Existing line consisting of 2 partial lines
Conclusion: The existing line cannot be used as an AD2 bus as the permissible line
length in accordance with Tab. 4.35 is exceeded.
Installation rules
• If an Ascotel DECT radio unit is used, do not connect any other system terminal
to the same AD2 bus.
• Do not use any terminating resistors at the bus extremity.
• Avoid using different cable cross-sections on the same bus
• Use the supplied cables for connecting the terminals
Partial line Diameter
[mm]
Resistance R
[Ω]
Line length from
Tab. 4.35 [m]
10.460213
2 0.6 140 1120
1 + 2 1333