Barnett Engineering Pro Talk ARU CV2 Instruction Manual
Also see for PRO TALK CV2: Instruction manual
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Contents
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Installation 2-4B1272M001 BARNETT ENGINEERING LTD. ProTalk Cv2Figure 9 Output WiringFigure 10 Serial Cable2.4 Output port connectionsThe output ports are open collector drivers that cansink up to 500 mA through a load connected to avoltage of up to +50 VDC. If an inductive loadsuch as a relay is connected to an output, install aprotective reverse-biased diode across the load toprevent damage to the output from the inductive flyback voltage. Figure 9 shows theconnection for an output used as a relay driver.2.5 Configuration programming connectionWhen the configuration database is transferred fromthe PC to the Cv2, a serial communications cable isconnected between the COM port of the computer andthe serial programming port, J1, on the Cv2. Whenthe cable is attached to the connector on the Cv2, theDTR signal is sensed by the Cv2 and it enters theprogramming mode. The cable used to connectbetween the two pieces of equipment is shown inFigure 10. To restore the Cv2 to operation, the cablemust be unplugged. The serial programming cable issupplied with the Cv2.J1 can also be used to program the cellular radio inthe Cv2. When the Cv2 detects that the serial port isbeing used to program the cellular radio, it willautomatically route the communications to the radio.Figure 11 shows a stand-alone Cv2 installation. Theprogramming PC is present only when a configurationdatabase is be transferred to or from the Cv2; theprogramming telephone can be either permanentlyinstalled or used only for voice recording. Note thatthe phone set can also be used to place outgoing calls,if required. If the Cv2 is to remain operational during a power outage, the DC power providedto the unit must be uninterrupted.Figure 12 shows a packaged Cv2 installation. The programming PC is present only when aconfiguration database is be transferred to or from the Cv2; the programming phone is part ofthe package and can also be used to place outgoing calls. The built-in power supply containsan 8 AH battery and is capable of running the Cv2 for at least 12 hours during a power outage.The power supply has a power fail output signal that can be connected to any of the input portson the Cv2 and programmed as an alarm point. |
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