Panasonic KX-T7775 - Manual (Page 4)

4 13
Installation
Notes:
1. A Doorphone Card must be inserted in the PBX before you can install
the Doorphone. This Doorphone manual should be read in
conjunction with the relevant PBX manual.
2. If in doubt when installing the Doorphone Module, consult your
authorized dealer.
System Connection
CAUTION:
n This product requires AC input to function. Ensure that the AC outlet
is located near the PBX, and is easily accessible.
n
This equipment should only be used with AC Adaptor PSLP1380Z.
Notes:
1. The Power Module is designed for internal use only and should
be located in close proximity to the main PBX. Wherever possible, it
should share any power failure backup systems provided for the
PBX. A maximum distance of no more than 10 m (32 ft) is advised.
2. Figures 2 and 3 on page 5 show interconnection in more detail.
3. The connection between the Doorphone and the Power Module
is not polarity sensitive.
4. Inputs to the bell contacts must not exceed 24 V AC.
5. This Doorphone manual should be read in conjunction with the
relevant PBX manual.
6. Always complete installation before connecting the DC voltage to the
Power Module.
7. Low voltage building wiring methods shall meet the requirements of
National Electric Code (NEC) NFPA 70, Article 725.
Figure 1 - System Connection
PBX
PBX
DOORPHONE
CARD
POWER
MODULE
Max 500 m (1640 ft)
22 AWG
DOORPHONE
MODULE
BELL INPUT
AC
ADAPTOR
(Refer to Figure 2) (Refer to Figure 3)
DOOR CHIME
SYSTEM
n
To reduce the risk of electric shock, do not disassemble this product,
but take it to a qualified person when service or repair work is
required. Opening or removing covers may expose you to dangerous
voltages or other risks. Incorrect reassembly can cause electric
shock when the appliance is subsequently used.
n
This unit should be kept free of dust, moisture, high temperatures
(more than 50°C (122°F)) and vibration.
n The socket-outlet shall be installed near the equipment and shall be
easily accessible.
n Unplug this product from the wall outlet and refer servicing to
qualified service personnel under the following conditions:
n
When the power supply cord or plug is damaged or frayed.
n
If liquid has been spilled into the product.
n If the product does not operate normally by following the
operating instructions. Adjust only those controls that are
covered by the operating instructions because improper
adjustment of other controls may result in damage and will often
require extensive work by a qualified technician to restore the
product to normal operation.
n If the product has been dropped or the cabinet has been
damaged.
n If the product exhibits a distinct change in performance.
n
Avoid using a telephone (other than a cordless type) during an
electrical storm. There may be a remote risk of electric shock from
lightning.