Specifications

To set the address by remote control from a PT controller or software, follow this procedure. The
address is set by the factory to 1 when shipped. If a change is required, follow the procedure for
your particular model of Eagle™ controller:
PT-C-50 controller: Enter FUNCT, PRESET 4, then select PRESET 1 through 8 to set addresses
from 1 through 8. Note that the PT-C-50 controller is limited to control of 8 PT heads.
PT-C controller: simply enter FUNCTION, the 11 button; the LCD display will read ADDRESS.
Then push the number you wish to set the head to.
PT-TSC touchscreen controller: From the main page, touch the FUNCTION button. Then touch the
SET PT ADDRESS button. On the numeric keypad that pops up, touch the number you wish the
head to become, followed by the ENTER button.
Note that the remote addressing procedure will only work if you know the number the head is
currently set to; if you don’t know the number, first select CAMERA, ALL. This will allow you to talk
to any head that is correctly wired up and powered.
Note that this will set the number for all heads on the RS-485 comm line; you must
disconnect the power or communication for all the heads except the one you wish to
address, otherwise all the powered and connected heads will be set to the same ad-
dress.
RS-485 CONNECTION AND TERMINATION
Communications for the PT-101 is transmitted via the RS-485 standard, a common
multidrop network configuration. Three wires are required for RS-485 communications, two for
signal and one for ground. Using 20 AWG shielded twisted pair cable, maximum communication
length without a repeater is 4,000 feet.
To connect multiple units to the same communication line, you may connect the three wires
in parallel from unit to unit; or in a star configuration from a PT-T2 hub out to each head. On each
of the pan tilt heads and in the controller is a 120 ohm terminating resistor. The resistor is con-
nected in series to a switch for easy configuration; this switch for termination is located on the side
of the unit (under the removeable top access panel) next to a COMM status LED; with the switch
towards the LED, the head is terminated; with the switch away from the LED, the head is
unterminated. Heads are shipped with the termination turned ON. The easiest way to terminate
your system is to terminate the head that is farthest away by cable distance, and leave the control-
ler terminated. Any other head should NOT be terminated.
If using a controller other than the Eagle™ pan tilt controller, such as an AMX or Crestron control
system, termination should be provided at the card cage end.
RS-232 SERIAL OPERATION
The PT-101 pan tilt head is capable of direct RS-232 operation right out of the box. No adapters
are needed. Under the top cover access panel you will find three black repositionable jumpers.