DMP Electronics XR2500F - Manual (Page 17)

XR2500F Installation Guide Digital Monitoring Products
9
IntRoduCtIon
893A Dual Phone Line Module
7.1 Description
The 893A is a dual telephone line supervision module that allows the panel to indicate a phone line failure
to the premises and the central monitoring station. After the 893A senses a failure on the main line, it
switches to the backup, or secondary, phone line. The 893A installs on the removable backplate above the
XR2500F circuit board.
7.2 Connection
The pre-wired 893A connects the panel to the public telephone network through an installed DMP 356 RJ
Cable between the XR2500F panel J3 connector and the 893A Module J3 connector labeled PANEL.
J2
DD
MPX
J1
DD
MPX
J3
PANEL
J4
MAIN
J5
BACKUP
P10
Factory pre-wired
to XR2500F panel
Phone Jack
Connector, J3
To Primary
telephone line
To Secondary telephone line
Communication Jumpers:
Both Set both Jumpers
Processor
Stopped Buzzer
Factory pre-wired
to XR2500F panel
J10 Connector
893A Dual Telephone Line Module
Figure 8: 893A Dual Phone Line Module Wiring
7.3 Jumper Settings
The 893A module has two sets of jumpers. Both communication jumpers must be set for DD (digital dialer)
operation. Do not set the 893A jumpers next to MPX. The 893A Module supports multiplex operation, but
the XR2500F panel does not.
7.4 Digital Dialer
You can configure the 893A to provide two lines of digital dialer. Maximum line impedance is 100 Ohms. The
XR2500F is preset at the factory for Digital Dialer. The Main modular jack (J4) is used for the primary digital
dialer line. The Backup modular jack (J5) is used for the secondary digital dialer line.
7.5 Phone Line Monitor
The 893A uses a phone line monitor for the main and backup phone lines. When sending a report, the 893A
verifies the main phone line is working before sending data. If the line is bad, the module tests the backup
phone line. The 893A sends the report on the first working phone line.
The phone line monitor has a two-minute trouble delay and a one-minute restore delay. Phone line trouble
is displayed in the Fire Command Center LCD Status List as a System Trouble. The Fire Command Center
LCD is factory programmed to display system troubles in the Status List.
7.6 Processor Fail Buzzer
The 893A module also monitors the panel CPU and sounds a trouble buzzer whenever either the panel
processor is reset using J16 or the processor stops functioning.
7.7 J10 893A Connector
The 893A Dual Phone Line Module connects to the XR2500F J10. Refer to the 893A Installation Sheet
(LT-0135) for complete information.
7.8 Ground start
Ground start phone service cannot be used on commercial or residential fire applications.