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PESA RCP-MLDT Manual

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Summary of Contents for PESA RCP-MLDT

  • Page 3 Ordering Assistance, Service & Inquiries Service and PESA Switching Systems, Inc. 330A Wynn Drive Ordering Huntsville, AL 35805 Main Numbers: Assistance Tel: (205) 726-9200 Fax: (205) 726-9271 Service Department Numbers: Tel: (205) 726-9222 Fax: (205) 726-9268 National Sales Office Sales Office PESA Switching Systems, Inc.
  • Page 4 PESA reserves the right to change any information con- NOTE tained in this manual without notice. Unauthorized copying, modifications, distribution, or display is prohibited. All rights reserved. Please address all comments or suggestions concerning this or other PESA manuals to: Publications Department Attn: Charles E.
  • Page 5 ATTENTION ALL EQUIPMENT ITEMS MANUFAC- TURED BY OR SOLD BY PESA SWITCH- ING SYSTEMS, INC. ATTENTION SHOULD BE SER- VICED BY QUALI- FIED SERVICE PER- SONNEL OR BY QUALIFIED SERVICE TECHNICANS ONLY.

  • Page 6: Table Of Contents

    1.1 Manual Overview ................1.1 1.2 General Description ..............1.2 1.3 Specifications ................1.3 Figures Figure 1-1 RCP-MLDT Control Panels Front and Rear Views .... 1.2 Section 2. Installation 2.1 Introduction ................... 2.1 2.2 Receipt Inspection ................ 2.1 2.3 Location and Mounting ..............2.1 2.4 Polling Address................
  • Page 7 Table of Contents RCP-MLDT Control Panels Section 3. Operation Continued: 3.7 Statusing ..................3.7 Status by Default Status Level ..........3.7 Breakaway Statusing ..............3.7 Error Statusing ................3.7 3.8 Direct Take Mode ................. 3.8 3.9 Preset Select Mode ..............3.9 3.10 Display Preset Mode ..............
  • Page 8 RCP-MLDT Control Panel Front View ..........6.2 RCP-MLDT2 Control Panel Front View ..........6.3 RCP-MLDT Control Panel Rear View ..........6.4 RCP-MLDT Control Panel Assembly ....CD63-0769 .... 6.5 RCP-MLDT2 Control Panel Assembly ....CD63-0770 .... 6.6 RCP-MLDT Switchcard Assembly ....... CA25-1328 .... 6.7 ............
  • Page 9 Section 7. Parts List 7.1 Parts List ..................7.1 General ..................7.1 RCP-MLDT Control Panel Assembly ....81906518420..7.2 RCP-MLDT2 Control Panel Assembly ....81906515310 ..7.3 RCP-MLDT Switchcard Assembly ....... 81906518370 ..7.4 RCP-MLDT2 Switchcard Assembly ..... 81906518510 ..7.5 Remote CPU Assembly ........

  • Page 10: Section 1. Introduction

    1.1 Manual Overview This manual provides detailed instructions for installing and operating the PESA RCP-MLDT Control Panels. This manual is divided into seven sections as shown. Sections 3 and 4 contain operational and functional descriptions of the RCP-MLDT Control Panels and their associated circuit cards.

  • Page 11: Rcp-Mldt Control Panels

    Both models of the RCP-MLDT Control Panel can be access limited to a single output if desired. The RCP-MLDT...

  • Page 12: Specifications

    RCP-MLDT Introduction Section 1 1.3 Specifications GENERAL Mounting Standard 19" Rack Push-buttons Illuminated and Legend-able INPUT Communications Port RS485 POWER Voltage Requirements +7.5VDC @ 800mA MECHANICAL Physical Dimensions Two Rack Units 19"W X 3"D X 3.5"H 482.6mm X 76.2mm X 48.9mm...

  • Page 13: Section 2. Installation

    2.3 Location and Mounting The RCP-MLDT Control Panels have been designed to fit in a standard E.I.A. 19" equipment rack and use two rack units of space (3.5"). An area should be selected where the ambient temperature will not exceed 40°C inside the equipment rack, and where air can circulate freely.

  • Page 14: Figure 2-1 Rcp-Mldt Chassis Installation

    Figure 2-1 illustrates the chassis installation. To install the RCP-MLDT Control Panels take the following steps: 1. Align the control panel chassis with a slotted opening in the rack. 2. Install the bottom screws first.

  • Page 15: Polling Address

    RCP-MLDT Installation Section 2 2.4 Polling Address For the system controller to identify a particular control panel, a specific device number or polling address must be assigned to each panel. Se- quential binary numbers (1 thorough 1023) are used for this purpose. The appropriate binary number is entered into the control panel by setting an internal 10-position DIP switch to the selected binary number.

  • Page 16: Control Panel/Controller Interconnection

    RCP-MLDT Installation Section 2 2.5 Control Panel/Controller Interconnection Each control panel has a single 3-pin MTA connector located on its rear panel which is utilized for system communications to and from the control- ler. Control panels are daisy-chained to a communications port on the rear panel of the system controller or to a communications port on the rear panel of the routing switcher containing the system controller.

  • Page 17: Wiring The Control Panel Connector

    RCP-MLDT Installation Section 2 2.6 Wiring the Control Panel Connector Should an additional 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 using the following instructions. See Figure 2-4.

  • Page 18: Terminating Cable Runs

    RCP-MLDT Installation Section 2 2.7 Terminating Cable Runs Each cable run should be terminated with a 120 ohm, 1/4 watt 5% resis- tor. The cable is terminated internally at the controller. See Figure 2-5. 1. Un-crimp the black and red leads in positions one and three.

  • Page 19: Power Connections

    Installation Section 2 2.8 Power Connections Power for the RCP-MLDT Control Panels is supplied by external 7.5 VDC, 800 mA power supplies. 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 20: Introduction

    Operations Section 3 3.1 Introduction The RCP-MLDT Control Panels are designed to be controlled by the 3300 Controller. Operations of the RCP-MLDT Control Panels require that they be configured at the system controller utilizing the Win3300 Control Sys- tem. Refer to the Operations Section of the Win3300 Control System Manual for configuration instructions.

  • Page 21: Direct Take Mode

    RCP-MLDT Operations Section 3 3.2 Breakaway Operation Continued: Direct Take Mode Action: Results: 1. Press the desired Level Key. The level names are shown in the Level Display. The Level Key is illuminated. 2. Select the desired source by pressing Takes the source on-line at the specified a Data Key.

  • Page 22: Split Operation

    RCP-MLDT Operations Section 3 3.3 Split Operation Split operation is like breakaway operation but it allows you to perform a breakaway on more than one level simultaneously. To Make a Split Breakaway: Results: 1. Depress the CLEAR Key. Clears the contents of the Preset Register.

  • Page 23: Key Types

    The RCP-MLDT Control Panel's data keys are arranged in four rows of 16 keys and four rows of two keys. The RCP-MLDT2 Function Keys - Both models of the RCP-MLDT Control Panel have eight function keys located Control Panel has 40 data keys;...

  • Page 24: Modes Of Operation

    RCP-MLDT Control Panels Operation Section 3 RCP-MLDT Control Panel RCP-MLDT2 Control Panel 3.5 Modes of Operation Direct Take - The Direct Take Mode enables selected sources to be switched to the destination Destination Select - The Destination Select Mode enables the selection of the destination group the controlled by the panel by pressing the associated source or soft source data keys.

  • Page 25: Panel Configuration

    Priority: Priorities are used when a panel attempts to set or clear a destination protect or lock. Only Key Assignment List: List containing the assignment of all data keys (72 for the RCP-MLDT Control the panel which set a protect or lock or a panel of higher priority can un-protect or unlock a destination Panel and 40 for the RCP-MLDT2 Control Panel) as configured by you.

  • Page 26: Statusing

    RCP-MLDT Control Panels Operation Section 3 RCP-MLDT Control Panel RCP-MLDT2 Control Panel 3.7 Statusing Status by Default Status Level Breakaway Statusing Status Display - The name shown in the Status Display represents the source switched to the desti- Status Display - The name shown represents the source switched to the destination currently con- nation controlled by the panel on the default status level.

  • Page 27: Direct Take Mode

    RCP-MLDT Control Panels Operation Section 3 RCP-MLDT Control Panel RCP-MLDT2 Control Panel 3.8 Direct Take Mode Level Data Keys - Selects level(s) to perform a Hot Take Breakaway on. The keys act as toggles. DSP PRS/ADDR Key: Source and Soft Source Data Keys - Switches the source(s) assigned to the data key on all selected DSP PRS - Exits the Direct Take Mode and enters the Display Preset Mode.

  • Page 28: Preset Select Mode

    RCP-MLDT Control Panels Operation Section 3 RCP-MLDT Control Panel RCP-MLDT2 Control Panel 3.9 Preset Select Mode Level Data Keys - Loads the selected preset to the selected level. DSP PRS/ADDR Key: Source and Soft Source Data Keys - Loads the preset with the source(s) assigned to the data key DSP PRS - Exits Preset Select Mode and enters Display Preset Mode.

  • Page 29: Display Preset Mode

    RCP-MLDT Control Panels Operation Section 3 RCP-MLDT Control Panel RCP-MLDT2 Control Panel 3.10 Display Preset Mode Level Data Keys - Selects level to view status and preset source. Only one level at a time is viewed. DEST/SALVO Key: Source and Soft Source Data Keys - No effect.

  • Page 30: Store Mode

    RCP-MLDT Control Panels Operation Section 3 RCP-MLDT Control Panel RCP-MLDT2 Control Panel 3.11 Store Mode Source Store - You were in the Preset Select Mode, selected a valid preset source, pressed and held DSP PRS/ADDR Key: the CLEAR/STORE Key for more than one second. Pressing any data key configured as a soft source will store the contents of the preset to the data key on all levels.
  • Page 31 RCP-MLDT Control Panels Operation Section 3 RCP-MLDT Control Panel RCP-MLDT2 Control Panel 3.11 Store Mode Continued: TAKE/CHOP Key: TAKE Source Store - Returns the panel to the Preset Select Mode. Toggles preset and on-line sources: 1) sends a switcher change request to take preset source to the currently controlled destination on the levels selected, 2) saves the current on-line source to the preset on the levels selected.

  • Page 32: Destination Select Mode

    RCP-MLDT Control Panels Operation Section 3 RCP-MLDT Control Panel RCP-MLDT2 Control Panel 3.12 Destination Select Mode Level Data Keys - Selects level to view. Only one level at a time is viewed (the lowest number level DSP PRS/ADDR Key: has highest display priority).

  • Page 33: Salvo Select Mode

    RCP-MLDT Control Panels Operation Section 3 RCP-MLDT Control Panel RCP-MLDT2 Control Panel 3.13 Salvo Select Mode Level Data Keys - No effect. DEST/SALVO Key: Source and Soft Source Data Keys - No effect. DEST - Exits the Salvo Select Mode and returns to the Destination Select Mode.

  • Page 34: Chop Mode

    RCP-MLDT Control Panels Operation Section 3 RCP-MLDT Control Panel RCP-MLDT2 Control Panel 3.14 Chop Mode Level Data Keys - No effect. DEST/SALVO Key: Source and Soft Source Data Keys - Exits the Chop Mode and returns the panel to the previous DEST - Exits the Chop Mode and enters Destination Select Mode.

  • Page 35: Introduction

    Functional Section 4 4.1 Introduction Both models of the RCP-MLDT Control Panels contain two printed circuit board assemblies; a Remote CPU Assembly and a MLDT Switchcard As- sembly or a MLDT2 Switchcard Assembly dependent upon the control panel model. The Remote CPU Assembly contains a microprocessor that controls the panel's operation and communicates with the routing switch- ing system controller.

  • Page 36: Clock

    RCP-MLDT Functional Section 4 4.2 Remote CPU Assembly 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 the 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 37: Reset

    RCP-MLDT Functional Section 4 4.2 Remote CPU Assembly 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 the internal EPROM register contents.

  • Page 38: Rs485 Communications

    RCP-MLDT Functional Section 4 4.2 Remote CPU Assembly Continued: RS485 Communications Communication between the panel and the system controller is accom- plished by the 68HC11 internal serial communications interface (SCI). The SCI is an asynchronous receiver/transmitter, sometimes referred to as a UART.

  • Page 39: Miscellaneous

    12. 4.3 Switchcard Assemblies (MLDT and MLDT2) The Switchcard Assemblies for both the RCP-MLDT Control Panel and the RCP-MLDT2 Control Panel contain circuitry to provide a switchcard ID to the Remote CPU Assembly, scan a keyboard, light the keyboard LEDs, and interface to an LCD display.

  • Page 40: Switchcard Id

    The scan circuit is arranged as an sixteen row by eight col- umn array. While the scan circuitry is capable of serving 128 push-but- tons, the RCP-MLDT has switch circuitry for 80 push-buttons and the RCP-MLDT2 has switch circuitry for 48 push-buttons. To scan the key- board, the microprocessor on the Remote CPU Assembly performs read cycles that enable SEL1.

  • Page 41: Table 4-2 Keyboard Memory Map

    RCP-MLDT Functional Section 4 4.3 Switchcard Assemblies (MLDT and MLDT2) Cont: Keyboard Scan Continued: Table 4-2 Keyboard Memory Map ADDRESS 800h KB_ROW0 U2 pin # 15 801h KB_ROW1 U2 pin # 14 802h KB_ROW2 U2 pin # 13 803h KB_ROW3...

  • Page 42: Led Driver

    RCP-MLDT Functional Section 4 4.3 Switchcard Assemblies (MLDT and MLDT2) Cont: LED Driver The Switchcard Assembly contains circuitry capable of lighting up to 102 push-button LEDs. The MLDT Switchcard Assembly uses 80 of these LED driver circuits and the MLDT2 Switchcard Assembly uses 48 of these LED driver circuits (one per push-button).

  • Page 43: Figure 4-2 Idealized Lcd Write Cycle Timing

    RCP-MLDT Functional Section 4 4.3 Switchcard Assemblies (MLDT and MLDT2) Cont: LCD Display Continued: Figure 4-2 Idealized LCD Write Cycle Timing It should be noted that since the write cycle to an LCD display is not com- pleted until the end of the next bus cycle, back-to-back writes to the dis- play are not possible.

  • Page 44: Figure 4-3 Control Locations

    RCP-MLDT Functional Section 4 4.3 Switchcard Assemblies (MLDT and MLDT2) Cont: LCD Display Continued: Figure 4-3 Control Locations 03/96 F UNCTIONAL DESC RIPTI ON page 4.10 P/N 81905903770...

  • Page 45: Section 5. Maintenance

    5.4 Corrective Maintenance The following paragraphs provide information to assist the servicing tech- nician in the maintenance of the RCP-MLDT Control Panels. The func- tional description (Section 4) contains assembly and circuit level informa- tion to help identify specific problems.

  • Page 46: Factory Repair Service

    Troubleshooting Troubleshooting the RCP-MLDT Control Panels requires the routing switcher system to be used as a test fixture. The RCP-MLDT Control Panels will not function except as part of routing switcher system. The only troubleshooting which can be accomplished without opening the control panels is to check input power (from plug-in power supply).
  • Page 47 RCP-MLDT Maintenance Section 5 5.4 Corrective Maintenance Continued: Troubleshooting Continued: If the control panel is unresponsive, there may be a power problem of the microprocessor on the Remote CPU Assembly is not operat- ing. 1. Refer to the Power Distribution discussion in Section 4. Refer to the Remote CPU Assembly Schematic in Section 6 if it is necessary to make voltage checks at the chip or component level.

  • Page 48: Section 6. Schematics

    Schematics Section 6 6.1 Schematics General This section contains the schematic diagrams and parts location diagrams for the RCP-MLDT Control Panels. Please refer to this section when troubleshooting the equipment or replacing defective parts. Description Dwg No. Page No. RCP-MLDT Control Panel Front View...
  • Page 49 RCP-MLDT Control Panels Schematics Section 6 RCP-MLDT Control Panel Front View 03/96 SCHEM A TI C S P/N 81905903770 page 6.2...
  • Page 50 RCP-MLDT Control Panels Schematics Section 6 RCP-MLDT2 Control Panel Front View 03/96 SCHEM A TI C S P/N 81905903770 page 6.3...
  • Page 51 RCP-MLDT Control Panels Schematics Section 6 RCP-MLDT Control Panel Rear View 03/96 SCHEM A TI C S P/N 81905903770 page 6.4...
  • Page 52 RCP-MLDT Control Panels Schematics Section 6 Configuration Drawing • RCP-MLDT Control Panel Assembly • CD63-0769 03/96 SCHEM A TI C S P/N 81905903770 page 6.5...
  • Page 53 RCP-MLDT Control Panels Schematics Section 6 Configuration Drawing • RCP-MLDT2 Control Panel Assembly • CD63-0770 03/96 SCHEM A TI C S P/N 81905903770 page 6.6...
  • Page 54 RCP-MLDT Control Panels Schematics Section 6 Component Assembly • RCP-MLDT Switchcard Assembly • CA25-1328 03/96 SCHEM A TI C S P/N 81905903770 page 6.7...
  • Page 55 RCP-MLDT Control Panels Schematics Section 6 Schematic (Sheet 1 of 2) • RCP-MLDT Switchcard Assembly • SC33-1328 03/96 SCHEM A TI C S P/N 81905903770 page 6.8...
  • Page 56 RCP-MLDT Control Panels Schematics Section 6 Schematic (Sheet 2 of 2) • RCP-MLDT Switchcard Assembly • SC33-1328 03/96 SCHEM A TI C S P/N 81905903770 page 6.9...
  • Page 57 RCP-MLDT Control Panels Schematics Section 6 Component Assembly • RCP-MLDT2 Switchcard Assembly • CA25-1335 03/96 SCHEM A TI C S P/N 81905903770 page 6.10...

  • Page 58: Schematics

    RCP-MLDT Control Panels Schematics Section 6 LED_SEL0 LED_SEL0 LED_SEL1 LED_SEL1 LED_SEL2 LED_SEL2 LED_SEL3 LED_SEL3 KNOB0 KNOB0 KNOB1 KNOB1 4.7K 4.7K 4.7K 4.7K 4.7K 4.7K 4.7K 4.7K 74HC138 LED_DATA LED_DATA LED_CLOCK LED_CLOCK KB_ROW0 DSP_RS DSP_RS KB_ROW1 SYSCLK SYSCLK KB_ROW2 KB_ROW3 RESET...
  • Page 59 RCP-MLDT Control Panels Schematics Section 6 LED1 LED35 LED69 LED2 LED36 LED70 LED3 LED37 LED71 LED_DATA DATA LED_DATA DATA LED_DATA DATA LED4 LED38 LED72 LED5 LED39 LED73 LED_CLOCK CLOCK LED_CLOCK CLOCK LED_CLOCK CLOCK LED6 LED40 LED74 LED7 LED41 LED75 LED_SEL0...
  • Page 60 RCP-MLDT Control Panels Schematics Section 6 Component Assembly • Remote CPU Assembly • CA25-1190 03/96 SCHEM A TI C S P/N 81905903770 page 6.13...
  • Page 61 RCP-MLDT Control Panels Schematics Section 6 Schematic • Remote CPU Assembly • SC33-1190 03/96 SCHEM A TI C S P/N 81905903770 page 6.14...
  • Page 62 7.1 Parts List General The Parts List in this section have been grouped according to each as- sembly associated with the RCP-MLDT Control Panels. Refer to each list by name of card, board, or section of the equipment requiring replacement parts.
  • Page 63 RCP-MLDT Parts List Section 7 RCP-MLDT Control Panel Assembly - 81906518420 81902101468 LABEL EQUIP SERIALIZATION 81902101500 LABEL WARNING FCC-EMI 81902201433 SCREW 4-40x3/16 FLT HD PH 81902202696 SCREW 4-40x7/16 SIMM PANH 81902907800 CONN 3 POS w/STRAIN RELIE 81903462320 DISPLAY COVER 20x2 X/Y...
  • Page 64 RCP-MLDT Parts List Section 7 RCP-MLDT2 Control Panel Assembly - 81906515310 81900500670 SOFTPOT ROTARY SELECTOR 81902002252 KNOB ALCO KM-1751BS-1/4 81902003420 STANDOFF 4-40x15/16 NYLON 81902101468 LABEL EQUIP SERIALIZATION 81902101500 LABEL WARNING FCC-EMI 81902201433 SCREW 4-40x3/16 FLT HD PH 81902202696 SCREW 4-40x7/16 SIMM PANH...
  • Page 65 RCP-MLDT Parts List Section 7 RCP-MLDT Switchcard Assembly - 81906518370 81900200312 RESISTOR 36 OHM 5% 1/4W 81900200544 RESISTOR 330 OHM 5% 1/4W 81900200783 RESISTOR 3.3K 5% 1/4W R5 R6 R7 81900200825 RESISTOR 4.7K 5% 1/4W 81900500117 POT 1K BOURNS 81900500125...
  • Page 66 REF: DSP1 81902101930 LENS ASSY BKC-6 S17-S48 S65-S80 81902105200 LEGEND SET RCP PANELS 81902202647 SCREW 4-40x1/4 SIMM PANHD REF: DSP1 81902413280 PCB RCP-MLDT SWITCHCARD 81902600584 SWITCH PB S17-S48 S65-S80 81902800507 WIRE 22AWG BUSS REF: DSP1 81902901271 SOCKET TRANS(INDIC) REF: Q1 Q2...
  • Page 67 RCP-MLDT Parts List Section 7 Remote CPU Assembly - 81906515410 81900200668 RESISTOR 1K 5% 1/4W 81900200908 RESISTOR 10K 5% 1/4W 81900300427 RESISTOR 100 OHM 5% 1/2W 81900500125 POT 5K OHM R4 R5 81900600958 SIP 4.7K 10-PIN 9 RESISTR RP1 RP2 RP3 81900700055 CAP 0.1MF 50V CERAM RADIL...

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