User Manual

www.acti.com

Encoder Hardware Manual

Connecting a Serial Device (Optional)

The encoder can be connected to a camera with Pan-Tilt (PT) functions or a PT Scanner (Pan-Tilt

Head) using the serial port connector. This allows the encoder to do pan and tilt using protocols,

such as Pelco-D, etc. Most PT devices accept protocol commands via RS-485 or RS-422

connection, which are both supported by the encoder.

Check the connection available on the PT device and connect it to the encoder following the

procedures below.

1. Map the wires from the PT device to the encoder using the supplied terminal block according

to one of the tables below.

Via RS-485 Connection

Pin Label

Encoder Pin

PT Device Pin

RX-

RX+

GND

GROUND PIN

TX- / D-

TX -

TX+ / D+

TX +

Via RS-422 Connection

Pin Label

Encoder Pin

PT Device Pin

Rx-

RX -

TX -

RX+

RX +

TX +

GND

GROUND PIN

TX -

RX -

TX +

RX +

NOTE: The pins of the PT Scanner may be labeled differently depending on the location or

country where the scanner is purchased. For example, some devices may have TX – pin

labeled as "A” or “485 -”, etc. Refer to the scanner documentation or contact the

manufacturer to verify the corresponding pin labels and ensure proper wiring connection.