Section 11. System Communication; General Information; Report Code Formats - ADEMCO 5110XM Installation Instructions Manual

Section 11. SYSTEM COMMUNICATION

This section provides the following information:
• General information about system communication
• An explanation of report formats
• Programming communications options

General Information

The process of a successful transmission consists of both the method of
communication between the control and the central station receiver and the
actual way the information is sent and displayed at the central station.
When the control calls the central station receiver, it waits to hear a
"handshake" frequency from the receiver to confirm that the receiver is on-line
and ready to receive its message. Once the control hears the handshake it is
programmed to listen for, it sends its message. The control then waits for a
"kissoff" frequency from the receiver acknowledging that the message was
received and understood.
If the handshake frequency is not given or is not understood by the control, the
control will not send its message. Once the handshake frequency is received
and understood by the control, the control will send its message. If there is an
error in the transmission (the receiver does not receive a "valid" message), the
kissoff frequency will not be given by the central station receiver.
The 5110XM has two dialers – a main and a back-up dialer. Each of these is
enabled separately in program field *79 (both are enabled by default). If
enabled, the back-up dialer will only become active when a line fault (voltage
on the main dialer drops below 2 volts) is sensed. The main and back-up
dialers are supervised by system zones 11 and 12, respectively.
The control will make up to ten attempts to get a valid message through. (Ten
attempts will be made to the primary number when only this number is
programmed, and five attempts will be made to the primary number followed
by five attempts to the secondary number when both numbers are
programmed). If the control is not successful after its numerous attempts, the
Comm Fail LED will light. (If an optional keypad is installed it will display
"Communication Failure" (alpha keypad) or "FC" (fixed-word keypad)).
Regardless of the format chosen the 5110XM will transmit reports in the
following priority order:

Report Code Formats

The following chart defines the three sets of (handshake/kissoff) frequencies
that the control supports and the different formats that can be sent for each.
FORMAT
Low Speed
3+1
4+1
4+2
Sescoa/Rad
3+1
4+1
4+2
Express
4+2
Contact ID
1. Alarms (Fire and emergency)
2. Fire Supervisories and Troubles
3. All remaining reports
HANDSHAKE TRANSMITS DATA
1400Hz 1900Hz (10PPS)
2300Hz 1800Hz (20PPS)
1400–2300Hz DTMF (10 cps)
1400–2300Hz DTMF (10 cps)
– 40 –
KISSOFF TRANSMIT TIME
1400Hz Under 15 secs.
(Standard report)
2300Hz Under 10 secs.
(Standard report)
1400Hz Under 3 secs.
1400Hz Under 3 secs.