D6600 NetCom
C900TTL-X Configuration
D6600 NetCom System Guide
© 2001 Radionics
Page 71
46542C
7.0
C900TTL-X Configuration
This section details how to correctly install, configure and program a Radionics C900TTL-X.
7.1
Network Enabling an Alarm Panel
The patented C900TTL-X is
designed to network enable almost
ANY industry standard alarm panel,
regardless of its manufacturer.
When the dialer has something to
report, the C900TTL-X provides the
signals and voltages necessary to
simulate a connection to the central
station through a phone line. The
C900TTL-X then decodes the
transmitted digital dialer message
and delivers the decoded signals
through an Ethernet NETWORK to
the network enabled D6600
RECEIVER/GATEWAY.
When the network enabled D6600
acknowledges receipt of the
message, the C900TTL-X transmits
an appropriate acknowledge
message to the Alarm Panel.
Figure 31: C900TTL-X
True end-to-end security is
maintained in this manner. The
C900TTL-X has three modular
jacks. One is labeled "TELCO", and
is intended for connection to an
RJ31X jack. The second is labeled
"PANEL", and is intended for
connection to the Alarm Panel via a
Telco cord. The third, marked
"ETHERNET” is for connection to
the Ethernet NETWORK RG-45
interface. In "Intercept Mode" the
C900TTL-X connects the house
phone directly to the telephone
company, and connects the digital
dialer to its internal Telco simulation
electronics. In "Fallback Mode," the
C900TTL-X connects the house
phone to the Alarm Panel, and the
Alarm Panel to the telephone
company, shunting itself out of the
phone circuit.
RJ31X
Control Panel
Phone Line
Monitor
Telco
Input
To LAN/WAN via
Ethernet connection
Battery
INPUTS
OUTPUTS
Communicator Phone Line
ETH ERN ET
PANEL
TELCO
12 VDC
Battery
Aux. Power
Supply
C900TTL-E
House Phones
Figure 32: C900TTL-X Interconnection Diagram
Intercept Mode is maintained only if the C900TTL-X is functioning properly and is receiving
ACKNOWLEDGEMENTS from the network enabled D6600 RECEIVER, via the network.
The C900TTL-X intercepts the phone line between the Telco service and the Alarm Panel, thus rendering the
Alarm panel's phone line monitor inactive. If phone line monitoring is required, an external phone line monitor,
such as the Detection Systems Inc. DS7481, should be used. Alarm Panels with internal phone line monitors
may generate an error when attached to the C900TTL-X. Unless the internal phone line monitor can be disabled,
do not use such a panel with the C900TTL-X.
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