Page 22 Installation manual for the CD72/95/15012
CONNECTING AN EXTRA POWER SUPPLY
An auxiliary power supply will be required if the voltage is too low as a result of large cable runs or the
current demand is in excess of the panels current supply rating.
To connect an extra power supply the ‘+’ of the panel must not be connected to the ‘+’ of the auxiliary power
supply. Also do not connect the ‘+’ of different auxiliary power supplies together. If the auxiliary power supply
is used to power a remote expander/keypad, connect the “+” of the four wire bus (“A”) to the “+” of the
auxiliary power supply. A common reference is obtained by connecting together all power supplies “-”.
IMPORTANT: NEVER INTERCONNECT POSITIVES OF POWER SUPPLIES. ALWAYS INTERCONNECT NEGATIVES OF
POWER SUPPLIES
Detects failure of
the mains power
Figure 15. Use of an extra power supply
INPUTS
Panel CD72 Panel
CD95/150
Expander socket
CD95/150
Numbering
1....8 1....16 145....152
Keypad 1 Keypad 2 Keypad 3 Keypad 4 Expander 5 Expander 6
CD72 9....12 13....16 17....20 21....24 9....16 17....24
Keypad 1 Remote 2 Remote 3 Remote 4 Remote 5 Remote 6 Remote 7 Remote 8
CD95/150 17....20 25....32 33....40 41....48 49....56 57....64 65....72 73....80
Remote 9 Remote10 Remote11 Remote12 Remote13 Remote14 Remote15 Remote16
CD95/150 81....88 89....96 97....104 105....112 113....120 121....128 129....136 137....144
Table 2. Numbering of the inputs
Note: In the CD72 the expanders have priority over the keypads !
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