Professional Automation Control System for CAEN Automation System Enclosures


        This product has been discontinued. Please contact Crestron True Blue Support at 1-888-CRESTRON for a replacement solution or more information.

        • 2-Series engine | Dual-bus architecture
        • 4GB Compact Flash memory card slot
        • Built-in Cresnet distribution and hub/repeater

        The PAC2 is a professional dual bus control system designed to serve as the central processor for Crestron Green Light™ systems. Fast performance, rigorous construction, and extreme flexibility provide a truly powerful automation solution for today's most demanding residential and commercial environments.

        2-Series Control System

        Built upon Crestron's reliable 2-Series control engine, the PAC2 is extensively programmable using Crestron's suite of powerful development software and vast database of drivers and software modules. The PAC2 works seamlessly with Crestron's entire line of lighting dimmers and shade controls, keypads and touchpanels, thermostats, wireless gateways, control cards, and expansion modules.

        Whole House Integration

        The PAC2 provides for the integration of non-Crestron devices and subsystems through a host of control interfaces. Eight isolated relays and eight I/O Versiports are built in to accommodate motion sensors, contactors, door strikes, and other low-voltage controls. Additional relays, I/O ports, RS-232, RS-422, RS-485, IR, and MIDI interfaces can be added by installing up to two Y-Bus control cards. Crestron also offers a full line of expansion modules to facilitate the placement of serial COM ports, relays, DTMF interfaces, and shade controllers at any location throughout a residence or commercial facility.

        Modular Enclosure Installation

        The PAC2 mounts in any CAEN or CAENIB automation enclosure and connects directly to the CLX-Series lighting modules. Every Crestron lighting system is completely modular and scalable, allowing virtually unlimited configuration and expansion flexibility.

        Cresnet® Distribution

        Cresnet is the communications backbone for Crestron lighting modules, wall box dimmers, thermostats, keypads, and many other devices. This flexible 4-wire bus streamlines the wiring of a complete Crestron lighting system. With 32 separate Cresnet ports, the PAC2 provides extensive connectivity for numerous Cresnet devices on multiple homeruns. Its built-in Cresnet hub provides 8 isolated segments, each supporting 3000 feet of cabling and approximately 20 Cresnet devices. The Cresnet ports are arranged into 4 separate power groups providing a clean, flexible 24 Volt DC power distribution solution utilizing internal or external power supplies as needed.

        Ethernet and e-Control®

        A choice of single or dual-port Ethernet cards facilitates secure high-speed network connectivity, enabling extensive capabilities for remote system maintenance and control, and providing an interface to other Crestron control systems. Native features include a built-in email client to report system troubles and other functions to the owner or service company via instant email notification. An onboard Web server provides the foundation for Crestron's exclusive e-Control 2 Xpanel technology, providing secure IP-based remote control.

        RoomView® and SNMP

        For large facilities utilizing multiple PAC2's and other control systems, Crestron's exclusive RoomView Help Desk software delivers a comprehensive solution for remote monitoring and asset management. Also, built-in SNMP support enables similar capability using third-party network management software, allowing full control and monitoring from the IT Help Desk or NOC in a format that's familiar to IT personnel.


        The PAC2's onboard NAT (Network Address Translator) acts as a firewall and router to facilitate the configuration of a private control LAN for Crestron touchpanels and other Ethernet devices, with a single-point connection to the client's LAN (Dual-port Ethernet card required).

        Backup Processor

        For applications demanding ultimate reliability, a second backup PAC2 may be employed. An internal watchdog circuit constantly monitors the PAC2's processor, transferring control of the complete system in the event of a failure. An override input is also provided to allow an external contact closure to bypass the PAC2 and activate a preset override state in each connected lighting module.

        Memory Expansion

        A memory card slot allows for easy expansion of the PAC2's internal memory using any Type II Compact Flash memory card up to 4 GB.

        D3 Pro Software

        Crestron D3 Pro software eliminates the need for custom programming, providing a complete design, development, and documentation solution for the lighting professional.

        Key Features
        • 2-Series engine | Dual-bus architecture
        • 4GB Compact Flash memory card slot
        • Built-in Cresnet distribution and hub/repeater
        • 10/100 Ethernet capable | SSL encryption
        • e-Control 2 and RoomView enabled
        • SNMP support | Built-in firewall, NAT and router
        • 8 Versiport I/O ports & 8 relay ports built-in
        • 2 Y-Bus / 1 Z-Bus control card expansion slots
        • Internal power supply | CAEN enclosure installation
        • Configurable via Crestron D3 Pro software
          CPU 32-bit Freescale ColdFire® Microprocessor
          SDRAM 64 MB
          NVRAM 256 KB
          Flash 4 MB
          Compact Flash expandable up to 4 GB (not included)
        Operating System
          Real-time, preemptive multi-threaded/multitasking kernel; FAT32 file system with long names; supports SIMPL™ Windows® and SIMPL+®
          With C2ENET-1 10/100BaseT, auto-negotiating, full/half duplex, static IP or DHCP/DNS, SSL, TCP/IP, UDP/IP, CIP, SMTP, SNMP, built-in Web server and e-mail client; supports Crestron e-Control®2 XPanel and RoomView™ applications
          With C2ENET-2 All above features plus: built-in firewall, router, and network address translator (NAT)
        Y-Bus Connectors & Expansion Slots
          40 Mb/s parallel communications;
        Internal backplane for integrated control ports and Y-Bus expansion slots
          I/O 1 - 8 (1) 9-pin 3.5mm detachable terminal block comprising (8) “Versiports” – digital input/output or analog input ports;
        Digital Input: Rated for 0-24 Volts DC; input impedance 20k ohms; logic threshold 1.24 Volts DC;
        Digital Output: 250 mA sink from maximum 24 Volts DC; catch diodes for use with “real world” loads;
        Analog Input: Rated for 0-10 Volts DC, protected to 24 Volts DC maximum; input impedance 20k ohms;
        Programmable 5 Volts, 2k ohms pull-up resistor per pin;
        All ports referenced to ground
          RELAY OUTPUT 1 - 8 (2) 8-pin 3.5mm detachable terminal blocks comprising (8) normally open, isolated relays;
        Rated 1 Amp, 30 Volts AC/DC;
        MOV arc suppression across contacts
          S1, S2 (2) Y-Bus expansion slots;
        Accept all Y-Bus control cards
        Z-Bus Expansion Slots
          300 Mb/s parallel communications;
        Backplane for Z-Bus expansion slots
          S-3 Z-BUS (1) Z-Bus expansion slot;
        Accepts all Z-Bus control cards
        Additional Connectors
          LEFT, RIGHT (2) 5-pin 0.156 inch headers;
        Module interconnect ports, connect to CLX-Series lighting control modules using interconnect cables provided
          Cresnet Hub/Repeater Cresnet data and power distribution:

        NET A – H: (32) 4-pin 3.5mm detachable terminal blocks comprising (4) Cresnet ports (paralleled) per each of (8) segments

        POWER 1 – 4: (4) 3-pin 3.5mm detachable terminal blocks comprising (1) Cresnet power selection connector per each of (4) power groups;
        Connect to external Cresnet power supply, or to internal power supply via jumpers, to power Cresnet devices connected to the NET ports;
        Maximum Load per Power Group using external supply: 75 Watts (3.125 Amps @ 24 Volts DC);
        Maximum Total Load using internal supply: 50 Watts (2 Amps @ 24 Volts DC)

          OVERRIDE (1) 3-pin 3.5mm detachable terminal block comprising (2) inputs from external contact closures to trigger the preset Override state in CLX-Series modules connected to the module interconnect ports;
        Maximum Input: 10mA at 5 Volts
          BACKUP NET INPUT (1) 4-pin 3.5mm detachable terminal block
        Backup Cresnet port;
        Connects to the NET port of a backup control system and power supply
          FAULT (1) 2-pin 3.5mm detachable terminal block;
        Contact closure output;
        Relay closed when PAC2 becomes inactive;
        Connects to digital input of backup control system
          NET (1) 4-pin 5mm detachable terminal block;
        Cresnet port, Master/Slave selectable;
        Expandable via C2N-NPA8 Network Poll Accelerator
          COMPUTER (2) DB9 female;
        RS-232 computer console port
          Line Power (1) Attached input power cable (~1 ft long) with inline IEC320 socket;
        Connects to AC power source using grounded pigtail cable and DIN rail terminal block (both included)
        Reset Buttons
          HW-R Hardware reset (reboots the control system)
          SW-R Software reset (restarts the SIMPL program)
        LED Indicators
          NET A – H (yellow x8) Indicate Cresnet communications on each respective segment
          POWER 1 – 4 (green x4) Indicate 24 Volts DC power present at each respective power group
          PWR (green) Indicates power supplied to unit via AC line or BACKUP NET INPUT
          NET (yellow) Indicates Cresnet bus activity
          MSG (red) Indicates control system has generated an error message
          LNK A (red) Indicates a valid connection on LAN port A
          ACT A (red) Indicates activity on LAN port A
          LNK B (red) Indicates a valid connection on LAN port B
          ACT B (red) Indicates activity on LAN port B
          FAULT (red) Indicates PAC2 has become inactive, FAULT output is active (relay closed)
        Power Requirements
          Main Power Consumption 2.4 Amps, 100-250 Volts AC, 50/60 Hz
          Available Cresnet Power 50 Watts (shared with control card expansion slots)
          Temperature 41° to 113°F (5° to 45°C)
          Humidity 10% to 90% RH (non-condensing)
          Black and gray metal, surface mount box with (2) integral mounting flanges;
        Occupies 1 module space in a single-width CAEN or CAENIB enclosure, or 2 side-by-side module spaces in a double-width enclosure
          Height 8.00 in (20.32 cm)
          Width 14.00 in (35.56 cm)
          Depth 3.75 in (9.52 cm)
          8.0 lb (3.62 kg) – with line cord
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