4
Installation
Notes:
1.A Doorphone Card must be inserted in the PBX before you can install
theDoorphone. ThisDoorphone manual should be read in
conjunctionwith the relevant PBX manual.
2.If in doubt when installing the Doorphone Module, consult your
authorizeddealer.

SystemConnection

CAUTION:
Thisproduct requires AC input to function. Ensurethat the AC outlet
islocated near the PBX, and is easily accessible.
Thisequipment should only be used with AC Adaptor PSLP1380Z.
Notes:
1. The Power Module is designed for internal use only and should
belocated in close proximity to the main PBX. Whereverpossible, it
shouldshare 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
isnot polarity sensitive.
4. Inputs to the bell contacts must not exceed 24 VAC.
5. This Doorphone manual should be read in conjunction with the
relevantPBX manual.
6. Always complete installation before connecting the DC voltage to the
PowerModule.
7. Low voltage building wiring methods shall meet the requirements of
NationalElectric Code (NEC) NFPA 70, Article 725.

Figure1 - System Connection

PBX
PBX
DOORPHONE
CARD
POWER
MODULE
Max500m(1640ft)
22AWG
DOORPHONE
MODULE
BELLINPUT
AC
ADAPTOR
(Referto Figure 2) (Referto Figure 3)
DOORCHIME
SYSTEM