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Installation Manual Pyramid AC Receiver

THE AC RECEIVER

The Pyramid AC Receiver is a fixed speed pan and tilt control receiver that can be connected to any camera within the

Pyramid system that has an AC Pan/Tilt head. The receiver is easy to install, and a service pin and test button are included

to aid the installation process. Once it has been fitted, the receiver will drive the pan, tilt, zoom and focus functions of a

Pan/Tilt head, and it can also drive auxiliary equipment (wipers, lights etc.) through the four auxiliary relays on the receiver

PCB.

The AC receiver can be programmed remotely with privacy zones, limit stops, random patrols, and up to 128 presets. It

also contains a video amplifier, with gain and high-frequency lift. This can improve video transmission over longer cable

runs.

MAIN PCB

FILTER

BOARD

EXTERNAL

TERMINAL

BLOCK

FACTORY

FITTED

12V DC PSU

(

UNDER PCB)

METAL

BASEPLATE

WEATHERPROOF

BOX

Figure 1 - AC Receiver Layout (Weatherproof Box Variants)

There are six variants of the AC receiver, which can be split into two groupsthe three variants that are supplied in a

weatherproof box (PY-ACW-) and the three variants that are supplied as a PCB only (PY-ACB-). In each of these two

groups, the difference between the three variants is based on the network speed and the type of network card fitted.

The -L variants (PY-ACW-L and PY-ACB-L) run on a low speed (9.8k b.p.s.) RS485 network while the -HR variants (PY-

ACW-HR and PY-ACB-HR) run on a high speed (78k b.p.s.) RS485 network. Both the -L and -HR variants are fitted with

a PY-COM network carda combined personality network card which can be configured by means of dip switches for use

in RS485 or RS422 networks. By default, the switches are set so that the card operates in RS485 protocol, but the card

protocol can be easily changed using the switch settings. For more details on the PY-COM network card, see page 12.

The -H variants (PY-ACW-H and PY-ACB-H) are fitted with a PY-FTT network card and run on a high speed (78k b.p.s.)

FTT10 network. For more details on the PY-FTT network card, see page 11.

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