Crestron Lighting Design Installationsanleitung PDF herunterladen (Seite 30)

230 V Lighting Design Guide

Doc. 4859C | crestron.com

PAC2 Lighting Control Processor

NOTE: Crestron recommends that the control processor be mounted within a separate CAEN enclosure to create a

simpliﬁed low-voltage wiring center.

Cresnet Distribution

The built-in Cresnet hub serves as a repeater, splitter, and wiring block for large Cresnet networks. The hub allows

for 256 or more devices (touch screens, keypads, etc.) at 32 per segment (A-H) and distribution up to 914.4 m

per segment. There are eight independent segments, each with four Cresnet connectors wired in parallel. Each

segment has a dedicated driver/receiver for Cresnet communication. In addition, there is a master NET port on the

front panel. The eight NET (A-H) activity LEDs illuminate when a device on the respective segment transmits data.

When powered by the internal power supply, a maximum of 50 watts (dc) is available for all connected network

devices. The LEDs indicate communication on the Cresnet link. The on-board 36 MB memory is enhanced with a

4 GB expansion slot that supports off-the-shelf Type II compact ﬂash memory. The hard disk drive provides

on-board storage of program and touch screens ﬁles, room and equipment proﬁles, upgrades, databases, and

schedules.

The unique Crestron dual bus system, with its high-speed I/O bus architecture, provides blazing fast throughput,

system wide. The two 40 Mb/s Y-BUS expansion slots offer the option of installing any of the CNX-series cards and

all C2-series control cards listed in the Crestron product catalog. The 300 Mb/s Z-BUS expansion slot is designed

for super high-speed control card applications such as 10/100 Ethernet, available via the Crestron single-port

C2ENET-1 and dual-port C2ENET-2 Ethernet cards.

The PAC2 also provides true secure network communications, which is required for today's corporate networks,

automated residence systems, and the Internet. The Dual Port 10/100BaseT Ethernet card (C2ENET-2) supports

dynamic and static IP addressing and full duplex TCP/IP and UDP/IP. It offers a WAN port for Internet and remote-

location communications and a LAN port for local in-home use. A built-in ﬁrewall delivers network security with the

Network Address Translator (NAT) and router functions. The built-in web server uses memory storage on a compact

ﬂash card for remote access and control.

• The PAC2 enables efﬁcient control of lighting and

other systems such as HVAC and security.

• The PAC2 has been speciﬁcally designed for

the Crestron automation enclosure and the

Crestron lighting system, although other Crestron

processors can also be used.

• The PAC2 occupies one module space in

single-width enclosures and two module spaces

in double-width enclosures.

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Crestron Lighting Design Installationsanleitung Seite 30