Power Sources - FLIR PTU-D300 User Manual

INSTALLATION & INITIAL SETUP
The easiest way to wire into the D300 is to use the factory cable with breakouts for power
and other connections (model PTU-CAB-25BO), and to use the factory power supply (model
PTU-APS-30V). This allows you to plug in and run the D300 in minutes. Or you can use the
wiring diagram in Appendix A.3 to make your own cables that better suit your installation.
Connect an RS-232 or RS-485 cable between the D300 and a host computer. When using the
factory cable PTU-CAB-25BO, standard RS232 connection (DB9F) is provided. HyperTerminal
(built into Windows) is the most commonly used communications program. Communications
parameters are: 9600 baud, no parity, no handshaking. (see Section 3.4).
The D300 provides payload pass-thru signals that connect between pins in the base
connector to corresponding pins in the payload connector. Additional pins in the payload
connector provide other payload controls (auxiliary RS232 ports and TTL control). Figure 2
shows this payload connector which is also a MIL-C-26482 compatible receptacle (19 pins).
Appendix A.4 details the payload connector pin-out.
Appendix A.4 shows the payload connector wiring. Pins highlighted in red indicate payload
pass-thru signals connected to corresponding pins in the base connector.
When attaching payload signals to the system, care must be taken to adhere to all
specifications for the pass-thru signals, such as maximum voltage and current
levels.

3.3 Power Sources

The PTU-D300 requires a 12-30VDC (unregulated) power source capable of 2.25A peak.
Less peak current is required if you do not use the higher motor current controls available (see
Sections 4.6.1 and 4.6.2). To achieve the highest pan-tilt unit performance, use the highest motor
voltage within the allowable range. To achieve the quietest and smoothest pan-tilt operation, you
can use a lower motor voltage (e.g., 12VDC).
When wiring your own power source, failure to comply with wiring and power source
requirements described in this manual can result in decreased unit
performance or damage not covered under the limited warranty.
If you are providing your own DC power source, the power source must never supply
more than rated current, and if so, you must add a fuse in series with your DC power
source. For example, when connecting to a vehicle battery or lighter plug, you must fuse the
incoming DC source. Failure to properly fuse your input power source could cause overloading of
internal protection devices, pose a safety hazard, or void product warranties.
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PTU-D300 User's Manual (v2.19)