Trango Broadband PTZ-900 Installation, Point-to-Multipoint Operation, Multilink Operation

Installation

Make sure that you have tested the PTZ controller and receiver/driver/ dome using a direct connection (with wires) before installing the wire- less link. Also, it is recommended that the wireless link be tested at short range before installing permanently. The transmitter and receiver units may get warm to the touch. This is normal and does not affect operation in any way.

The PTZ-900 system is factory-configured for operation at 9600 bps, RS-485/422 mode, hopping sequence 0, address 0000. If your PTZ con- troller and dome operate at a speed other than 9600 bps or use RS-232 protocol, you must reprogram the PTZ-900TXand PTZ-900RXusing the supplied programming cable and the TrangoLink software, which runs on any computer with Windows 95 or higher. See page 11 for detailed information.

Important! The PTZ-900 enclosures are designed for a steel pole with a maximum diameter of 23/8″ and a wall thickness of ¼″ . The pole must be securely mounted into the ground or to a structure to prevent move- ment of the antenna and camera in windy conditions. This pole also acts as an earth ground and must be grounded.

Point-to-Multipoint Operation

In some cases it may be necessary to control more than one camera from the same console. In this case, one PTZ-900TXtransmitter can be used to send control signals to all receivers and the receiver/drivers will filter the data as in a hard-wired system. The user must ensure that all PTZ-900RXreceivers have the same address and hopping sequence as the transmitter. Mount any antenna receiving from an AO900-3-P omnidirectional in the vertically polarized position.

To obtain the best performance and transmission distance, the follow- ing rules of thumb should be followed:

1	Mount the transmitter and receiver antennas above human and me-
	chanical traffic, the higher the better. A ten-foot steel mast on top
	of a building is typical. Make sure that the mast is well grounded to
	earth ground with a wire of AWG 8 or greater. For distances more
	than eight miles, the transmit and receive antennas must be fifteen
	to twenty feet above all obstacles in the line of sight.
2	Keep the transmission path as open as possible. Objects such as walls
	and metallic objects near the transmission path may reduce the
	transmission distance.
3	Do not add additional lengths of cable to connect the receiver to the
	antenna, as significant losses in signal and reduced transmission

AO 900-3-P omni antenna

PTZ-900TX Channel 1

PTZ CONSOLE

FALCON or EAGLE

RX for video

	Channel 3
	MULTIPLEXER
	Channel 5
	Channel 7
EVENT RECORDER	MONITOR

FALCON or EAGLE TX for video

PTZ- 900RX

DOME or

RECEIVER DRIVER

range will occur.

4 Keep the data link (shielded twisted-pair) cables as short as possible

to prevent distortion of the data and possible interference with video

running on coaxial cable nearby.

The PTZ-900 system transmitter and receiver units come pre-mounted in a NEMA 4× aluminum enclosure. This permits the unit to be mounted outdoors.

Multilink Operation

Different than point-to-multipoint operation. multilink is where more than one transmitter is operating in the same area. In this case, all the transmitters and receivers operating on one system would have the same hopping sequence and address. Those on another system nearby should have a different address and a different hopping sequence in order to add more isolation between the systems

6 PTZ-900 Installation and Operating Instructions rev E Trango Systems, Inc. 7