Protege PRT-CTRL, Руководство по установке

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13 Protégé System Controller Installation Manual
Figure 14 - Network HIGH resistance BIAS Configuration
Biasing the network with the controller in the LOW setting is the default
configuration. Only under special circumstances should the BIAS jumpers be
changed from Factory Default.
Telephone Dialler
The Protégé System Controller provides the ability to communicate alarms and
upload/download information with remote systems using the onboard 2400Bps modem. The
telephone lines can be connected directly to the Protégé System Controller using the onboard
telephone connection terminals.
The secondary telephone line terminals can be used as a backup telephone line. If the
Reporting Service fails and the Controller is unable to communicate with the central station
through the primary telephone line, the Protégé System Controller will switch to the second
line (if programmed) and repeat the communication process (refer to the Service
programming section in the Protégé System Reference Manual for settings that relate to
reporting and communication).
Figure 15 - Telephone Line Connection
It is recommended that the earth connection for the telephone and main power
supply (refer section
Earth Ground Connection in Page 8 ) earth be run separately
and should be terminated on the cold water pipe or similar grounding point within
the installation.
The secondary telephone connection is optional and only required if the secondary
line option is enabled. For more information refer to the Protégé System Controller
Reference Manual.
Expansion Connector
The Protégé System Controller includes a 40 way expansion connector that is used to connect
serial communication, parallel, memory and special function interface devices. Connect the
interface card to the Protégé System Controller as shown in the following diagrams. For
configuration information refer to the Protégé Reference Manual and the Installation
Instructions provided with the interface device.