ASCOM Ascotel 2025 System Manual page 829

ascom Ascotel 2025/2045/2065
Restrictions
The maximum length of an AD2 bus is further restricted by:
• The power requirements of the connected terminals and their supplementary
equipment
• The power drop over the line; the power drop depends on the line resistance
R (line length, wire diameter)
Tab. 4.33: Power requirements of the terminals on the AD2 bus
System terminal
Office 10
Office 20
Office 30
Office 30
Office 40
Office 40
Office 25
Office 35
Office 35
Office 35
Office 35
Office 35
Office 35
Office 35
Office 45
Office 45
Office 45
Office 45
Office 45
Office 45
Office 45
1)
Office 45pro
Pocket Adapter (PA)
DECT radio unit
DECT radio unit
1)
Power specification on the condition that the terminal is provided power via a plug-in power supply unit
(required for backlighting the display)
4.58 Cabling Interfaces
Supplementary equipment
—
—
—
Additional keypad
—
Additional keypad
—
—
1 expansion keypad
2 expansion keypads
3 expansion keypads
Alpha keyboard
alpha keyboard + 1 expansion
keypad
alpha keyboard + 2 expansion
keypads
—
1 expansion keypad
2 expansion keypads
3 expansion keypads
Alpha keyboard
alpha keyboard + 1 expansion
keypad
alpha keyboard + 2 expansion
keypads
3 expansion keypads
—
without power supply unit
with power supply unit
Max. power requirements [mW]
879
370
900
1160
925
1215
835
570
720
870
1020
590
740
890
958
1108
1258
1408
978
1128
1278
10
470
1800
600
HBT_20321104_04/B0_en