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PESA RCP-48X Manual

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Summary of Contents for PESA RCP-48X

  • Page 2 Manual Updates: 06/17/94 Rev. A: Manual released for initial printing. 02-28-01 Rev. B: Not released - Agile conversion. GLT 02-28-01 Rev. C: Synchronized revision level with Agile per ECO CE00126. GLT 03-02-01 Rev. D: Deleted Printing Specification per ECO CE00113. GLT 03-16-01 Rev.

  • Page 5: Table Of Contents

    Table of Contents RCP–48X Control Panel Section 1. INTRODUCTION Manual Overview ..............1.1 General Description ..............1.2 Figure 1–1 RCP–48X Front and Rear Views ...... 1.2 System Specifications ............... 1.3 Section 2. INSTALLATION Introduction ................2.1 Receipt Inspection ..............2.1 Location and Mounting .............
  • Page 6 Table of Contents RCP–48X Control Panel Section 4. FUNCTIONAL DESCRIPTION Introductionl ................4.1 CPU Board................4.1 Power Supply ..............4.1 Microprocessor ..............4.1 Figure 4– 1 Idealized Bus Cycle Timing Diagram ....4.2 Clock ................... 4.2 Reset .................. 4.3 Memory ................4.3 LED Driver Support .............

  • Page 7: Section 1. Introduction

    1.1 Manual Overview This manual provides detailed instructions for installing and operating the PESA RCP–48X. This manual is divided into five sections as shown. Section 1, INTRODUCTION, summarizes the manual, describes the RCP–48X, presents a list of terms, and provides the panel INTRODUCTIO specifications.

  • Page 8: General Description

    This panel is recommended for applications requiring minimum keystrokes and a limited number of sources for a limited number destinations. The RCP-48X can access one or more router destinations. There are two control pushbuttons on the right. One allows the operator to...
  • Page 9 RCP-48X Section 1 Introduction 1.3 Specifications GENERAL Mounting Standard 19" Rack Pushbuttons LED Illuminated INPUT Input Type RS485 POWER Voltage Requirements +7.5 VDC @ 800 mA MECHANICAL One Rack Unit 19"W x 1 1/2"D x 1 3/4"H (482.6mmx38.1mmx44.45mm) ENVIRONMENTAL Temperature 0°C to 40°C...
  • Page 10 RCP-48X Section 1 Introduction page 1.4 INTRODUCTIO...

  • Page 11: Section 2. Installation

    2.3 Location and Mounting The RCP-48X has been designed to fit in a standard E.I.A. 19" equipment rack and uses 1 rack unit of space (1 3/4"). An area should be selected where temperature does not exceed 40°C inside the equipment rack, and where air can circulate freely.

  • Page 12: Polling Address

    Valid polling addresses are in the range of 1 to 128. Systems requiring more than 128 panels are possible with enhanced controllers, refer to your Pesa Sales Representative for details. The appropriate binary number is entered into the control panel by setting a 10-position DIP switch to the binary number.

  • Page 13: Control Panel/Controller Interconnection

    RCP-48X Installation Section 2 2.4 Polling Address (Device Number) Continued: Figure 2–2 DIP Switch Location 2.5 Control Panel/Controller Interconnection Each panel has a single 3-pin MTA connector located on the rear panel. Control panels are daisy chained to a port on the rear of the Controller.

  • Page 14: Wiring The Control Panel Connector

    RCP-48X Installation Section 2 2.6 Wiring the Control Panel Connector Should an additional control panel be added to your system, it will be necessary to wire the connector using shielded twisted pair cable and a 3- pin MTA connector. See Figure 2–4.

  • Page 15: Terminating Cable Runs

    RCP-48X Installation Section 2 2.7 Terminating Cable Runs Each cable run should be terminated at the end of the run with a 120ý, 1/4 watt 5% resistor. The cable is terminated internally at the controller. See Figure 2–5. 1. Uncrimp the black and red leads in position 1 and 3.

  • Page 16: Power Connections

    Installation Section 2 2.8 Power Connections Power for the RCP-48X is supplied by an external 7.5 Vdc, 800 mA power supply. Remove the Power Supply from the box it was shipped in and check to insure that no damage has occurred in shipping. Verify that the Power Supply is rated for the proper AC voltage (i.e.

  • Page 17: Section 3. Operation

    RCP–48X Operations Section 3 3.1 Operations of the RCP–48X Introduction The RCP–48X is controlled by the RC5500 Controller. Operations of the RCP–48X require that it be configured at the controller and have the appropriate polling address assigned. Connections and power up proce- dures should be performed on each panel controlled.

  • Page 18: Breakaway Operation

    RCP–48X Operations Section 3 Breakaway Operation Breakaway operation allows you to select an input to be switched to an output on one or more specific levels. Assumptions: Panel is currently in Direct Take mode (default mode) and no level has been selected for break- away (Level/Disp.
  • Page 19 Address must match the dip switch setting on the rear of the panel. Systems requiring more than 128 panels are possible with enhanced controllers: refer to your Pesa Sales Default Destination Group: Destination group to be controlled by the panel on panel boot-up.
  • Page 20 RCP–48X Section 3 Operations STATUSING: Breakaway Statusing Status by Group Status LED Illuminated Solid (not blinking) - The current status matches the source assigned to the Data LED Illuminated Solid (not blinking) - The current status matches the source(s) assigned to the Key for the highest priority level selected (level 1 is highest priority) and the source(s) assigned to Data Key.
  • Page 21 RCP– 48X Section 3 Operations DIRECT TAKE MODE LEVEL SELECT MODE DATA KEYS: DATA KEYS: In this mode, Data Keys are associated with sources and destinations. Pressing a Source Data Key will In this mode, Data Keys are associated with levels, with the top left Data Key corresponding to level 1 switch the source assigned to the Data Key on all selected levels to the destination controlled by the and proceeding left to right, top to bottom.

  • Page 22: Introductionl

    RCP–48X Functional Section 4 4.1 Introduction The RCP–48X panel consists of two printed circuit boards. The CPU board contains a microprocessor that controls the panel's operation and communicates with the control system. The Switchcard contains pushbut- tons and indicators used by the operator to control the routing switcher. The following is a detailed description of each of these boards.

  • Page 23: Clock

    RCP–48X Functional Section 4 CPU Board Continued: Microprocessor Continued: During the first half of the bus cycle, port C presents the lower address byte (A0-A7). This information is latched into U2 on the falling edge of address strobe AS (U1 pin 4 to U2 pin 11) and remains stable until the beginning of the next bus cycle when AS is driven high by the processor.

  • Page 24: Reset

    RCP–48X Functional Section 4 CPU Board Continued: Reset As with all microprocessors, the 68HC11 requires initialization during power-up. The 68HC11 requires that the RESET pin (U1 pin 17) be held low for 4064 cycles of E clock (2.2 mS @ 1.8432 MHz E clock). In addition the RESET pin must be held low while VDD is below legal limits to protect internal EEPROM register contents.

  • Page 25: Rs-485 Communications

    RCP–48X Functional Section 4 CPU Board Continued: RS-485 Communications Communication between the panel and the system controller is accom- plished by the 68HC11 internal Serial Communication Interface (SCI). The SCI is an asynchronous receiver/transmitter, sometimes referred to as a UART. The RS-485 standard is used for the electrical interface between panels and the system controller.

  • Page 26: Miscellaneous

    RCP–48X Functional Section 4 CPU Board Continued: Signal Start SEL0 0000h 07FFh SEL1 0800h 0FFFh SEL2 1000h 17FFh SEL3 1800h 1FFFh SEL4 2000h 27FFh SEL5 2800h 2FFFh SEL6 3000h 37FFh SEL7 3800h 3FFFh Table 4–1 Decoder Addressing Miscellaneous The CPU board provides some special function signals for use by external boards.

  • Page 27: Keyboard Scan

    RCP–48X Functional Section 4 Switchcard Continued: remainder of the ID bits (ID1-ID5) are either floating or grounded by the switchcard. Floating pins are pulled high by pullup resistors on the CPU board. The CPU may use these bits to detect what switchcard is attached. Keyboard Scan The RCP–48X switchcard contains circuitry capable of scanning up to 64 pushbuttons.

  • Page 28: Led Driver

    RCP–48X Functional Section 4 Switchcard Continued: cycle at address 800h, the CPU can determine the state of pushbuttons S1-S8 by looking at the state of data bits D0-D7. If S1 is pressed, then D0 will be low. Likewise, if S2 is pressed, D1 will be low. The status of the entire keyboard array may be determined by performing successive reads of each row of the array.
  • Page 29 RCP–48X Functional Section 4 FUNCTIONAL page 4.8 DESCRIPTION...

  • Page 30: Section 5. Maintenance

    RCP–48X Maintenance Section 5 5.1 General The RCP–48X Control Panel is a solid state electro-mechanical device designed to give long, trouble free service with minimum maintenance requirements. If problems do occur, follow the troubleshooting procedure provided. If additional technical assistance is required, refer to the General Assistance and Service information in the front of the manual.

  • Page 31: Factory Repair Service

    Failure to do so often results in delay or even loss. NOTE: Contact PESA Switching Sytems' Service Department (listed on the General Assistance and Service information sheet in the front of this manual) for a RMA# prior to shipping.
  • Page 32 RCP–48X Maintenance Section 5 Troubleshooting Continued: If the Panel is nonresponsive, there may be a power problem or the CPU is not operating. 1. Refer to the POWER DISTRIBUTION discussion in Section 4. Refer to the remote CPU schematic in Section 6 if it is necessary to make voltage checks at the chip or component level.
  • Page 33 RCP–48X Maintenance Section 5 MAINTENANCE page 5.4...

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