Specifications

To set the address by remote control or software, follow this procedure. The address is set by the

factory to 1 when shipped. If a change is re quired, follow the procedure for your particular model

of Eagle™ controller. Keep in mind that if you have set the address switches to anything but all

off, you cannot set the address from the remote controller:

PT-C-50/55 controller: Enter FUNCT, PRESET 4, then select PRESET 1 through 8 to set addresses

from 1 through 8. Note that the PT-C-50/55 con trol lers are limited to control of 8 PT heads.

PT-C controller: simply enter FUNC TION, the 11 button; the LCD dis play will read AD DRESS. Then

push the num ber you wish to set the head to.

Note that the addressing procedure will only work if you know the number the head is

currently set to; if you don’t know the num ber, ﬁ rst select CAMERA, ALL. This will allow

you to talk to any head that is cor rect ly wired up and powered.

Note that this will set the number for all heads on the RS-485 comm line; you must

dis-

con nect the pow er or com mu ni ca tion for all the heads except the one you wish to ad-

dress, otherwise all the powered and connected heads will be set to the same ad dress.

RS-485 CONNECTION AND TERMINATION (FACTORY DEFAULT SETUP)

Communications for the PT-101 is transmitted via the RS-485 standard, a common multi-

drop network conﬁ guration. 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, connect the three wires in paral-

lel from unit to unit. On each of the pan tilt heads and in the controller is a 120 ohm terminat-

ing resistor. The resistor is con nect ed in series to a switch for easy con ﬁ g u ra tion; this switch for

termination is located on the top of the unit (under the removeable top cover); with the switch

towards the right, the head is terminated; with the switch to the left, the head is unterminated.

Heads are shipped with the termination turned OFF. The easiest way to terminate your system is

to ter mi nate the head that is farthest away by cable distance, and leave the controller terminated.

Any other head should NOT be ter mi nat ed.

If using a controller other than the Eagle™ pan tilt controller, such as an AMX or Crestron control

system, ter mi na tion should be provided at the card cage end.

RS-232 SERIAL OPERATION (OPTIONAL SETUP)

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 ﬁ nd six black repositionable jumpers. The

PT-101 is shipped in standard RS-485 mode; with all of the jumpers UP.

Switch the three left most jumpers (J1, J2, J3) to the lower position, and the head is now conﬁ g-

ured for RS-232 mode. The same control codes used for RS-485 apply for moving the head using

Eagle™ software or when writing your own software. These control codes are available off of the

Eagle website, http://www.eaglepantilt.com. Please be aware that the maximum reliable distance

for RS-232 control is only about 50 to 75 feet, and that only one PT-101 head may be hooked

up per serial port as is standard with RS-232 communications. The three right jumpers (J7, J6,

J5) are to switch the camera control method to RS-232 from the normal TTL mode. Do not move