DSC MAXSYS PC4851 Panduan Instalasi - Halaman 3
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Introduction
The PC4851 'No Phone Bill' module is used with the PC4850 Telephone Entry Controller to
eliminate the need for a dedicated telephone line. The PC4851 interfaces between the
tenant's telephone and the existing telephone system, allowing communication between
the lobby intercom and the tenants. The PC4851 comprises a main controller board and
one or more 12 or 24 line relay cards to provide up to 750 telephone connections.
Operation
When a visitor calls a tenant the following will occur:
•
The PC4851 rings the tenant's telephone. If the phone is busy, the PC4851 module
sends a double beep, indicating that a visitor is calling from the lobby.
•
The tenant can switch to the visitor's call by pressing the Hook-switch or '3' on their
telephone. This will disconnect the tenant's telephone from the telephone system but
allow it to remain connected to the PC4851 module and the lobby intercom.
•
The tenant can open doors by pressing 7 for door #1 or 9 for door #2.
•
When the visitor's call is finished, the tenant can return to the original call by pressing
Hook-switch or '3' on their telephone.
Specifications
•
Supply Voltage ........................................................................................ 24 V
•
Supply Current .......................................................................................... 40VA
Parts List
Fig 1
Item No.
Description
5
No Bill Module ......................................................................... PC4851
9
Relay Module ......................................................................... TAR301A
... Relay PCB (12 Lines) .............................................................. TC312
... Relay PCB (24 Lines) .............................................................. TC324
3
Interconnect Module ............................................................. TAB301A
1,13
Cabinet (2 Relay Mod Config.) ..............................................TCS6000S
Cabinet (10 Relay Mod Config.) ............................................ TCS6000L
Not Shown
2
Screws (4) ........................................................ #8, 1 1/2" Wood Screw
14
Screws (2) .................................................. #6, 1/2" Self Tapping Screw
6
2-Wire Phone Connector Cable........................... RJ-31 to 2 flying leads
8
Ground Wire ...................................................................18 AWG (min)
10/11
4-Wire Phone Connector Cable ...............................RJ-31 to RJ-31 (4")
Not Shown
24 V
Phone Panel Connector .............................................RJ-71C Connector
12
(Refer to Table 1 for wiring details)
Power Source ..............................DSC PTD2440U or equivalent
AC
firealarmresources.com
AC
Part Number
1