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MAINTENANCE

5

Section 5

page 5.1

Maintenance

RCP–48X

The test equipment recommended for servicing the RCP–48X is listed
below. Equivalent test equipment may be used.

EQUIPMENT

FUNCTION

Oscilloscope - 20 MHz or

Waveform Monitoring and

higher

Tracing

VOM - 20,000 ý per volt

Voltage and Resistance

or higher

Measurements

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.

5.2 Preventive Maintenance

5.1 General

There is little need for preventive maintenance on the RCP–48X other
than the normal care which should be given to any quality electronic
equipment.

5.3 Test Equipment

5.4 Corrective Maintenance

The following paragraphs provide information to assist the servicing tech-
nician in maintenance of the RCP–48X. The functional description (Sec-
tion 4) contains board/circuit level information to help identifying specific
problems.

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Содержание RCP-48X

Страница 1: ...Document No 81 9059 0307 0 Rev E PESA Switching Systems 330A Wynn Drive Huntsville AL 35805 RCP 48X...

Страница 2: ...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 E...

Страница 3: ...tching Systems Inc 330A Wynn Drive Huntsville AL 35805 Main Numbers Tel 256 726 9200 Fax 256 726 9271 Service Department Numbers Tel 256 726 9222 Fax 256 726 9268 National Sales Office PESA Switching...

Страница 4: ...ce 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 Departm...

Страница 5: ...llation 2 2 2 4 Polling Address 2 2 Figure 2 2 DIP Switch Location 2 3 2 5 Control Panel Controller Interconnection 2 3 Figure 2 3 Typical Control Panel Interconnection 2 3 2 6 Wiring the Control Pane...

Страница 6: ...Support 4 3 RS 485 Communications 4 4 I O 4 4 Table 4 1 Decoder Addressing 4 5 Miscellaneous 4 5 4 3 Switchcard 4 5 RCP 48X Switchcard 4 5 Switchcard ID 4 5 Keyboard Scan 4 6 Table 4 2 Keyboard Memor...

Страница 7: ...ions Section 3 OPERATION describes operation procedures Section 4 FUNCTIONAL DESCRIPTIONS presents an in depth description of each RCP 48X component Section 5 MAINTENANCE explains procedures for maint...

Страница 8: ...access one or more router destinations There are two control pushbuttons on the right One allows the operator to Protect or Lock the assigned destination while the other allows the opera tor to select...

Страница 9: ...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...

Страница 10: ...INTRODUCTIO 1 Section 1 RCP 48X page 1 4 Introduction...

Страница 11: ...on 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...

Страница 12: ...ling 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 num...

Страница 13: ...s are daisy chained to a port on the rear of the Controller Use shielded twisted pair cable See Figure 2 3 P S P S CP Control Panel P S P S TWISTED PAIR TO CP S TWISTED PAIR TO CP S TWISTED PAIR TO CP...

Страница 14: ...Remove approximately 1 1 2 of insulating jacket from each of the two wires 2 Remove approximately 1 2 of wire insulation from the black and red wires 3 Twist together and insert the two black wire end...

Страница 15: ...nated at the end of the run with a 120 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 2 Insert the resist...

Страница 16: ...ped 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 115 VAC or 230 VAC before connection to the AC voltage The power...

Страница 17: ...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 General All RCP 48X panels in a rou...

Страница 18: ...for breakaway Data Key whose associated input matches the current status on the selected level s will be illuminated Depress the Data Key associated The destination controlled by the with the input y...

Страница 19: ...n Follow operation and status is not determined by the Group Status refer to the preceding Status Method description Level List List of levels to be controlled by the panel Any level not in the assign...

Страница 20: ...ing The current status matches the source s assigned to the Data Key LED Blinking The current status matches the source s assigned to the Data Key on some but not all levels No LED Illuminated The cur...

Страница 21: ...while key is depressed The address will be displayed in binary format The LSB is the right hand Data Key in the top row LEVEL SELECT MODE DATA KEYS In this mode Data Keys are associated with levels wi...

Страница 22: ...ilter capacitors Unregulated DC voltage 7 5 to 9 Vdc is supplied by an external power supply via J3 The voltage regulator U7 reduces the voltage to 5 0 Vdc C10 and C12 provide filtering for the input...

Страница 23: ...bus A0 A15 the data bus D0 D7 AS R W and E clock are available to external boards via J1 Clock The master system clock is provided by oscillator U6 pin 8 SYSCLK is available to the processor U1 pin 7...

Страница 24: ...2 and 3 followed by inverter stage U8 pins 4 5 and 6 CS2 is active for addresses in the range of 4000h to 7FFFh and C000h to FFFFh U3 is selected when both CS1 and CS2 are asserted This occurs for ad...

Страница 25: ...to drive the bus During reset the TX_ENABLE signal from the processor is initialized to an input and is not driven to a particular state A pull down resistor R2 has been added to ensure that U4 does...

Страница 26: ...CPU board accepts input from a rotary encoder in the form of two signals named KNOB0 and KNOB1 The CPU software expects quadrature encoded signals to indicate direction of travel from the rotary enco...

Страница 27: ...ne of the eight low active outputs of the decoder is selected by placing the appropriate address on the input of the decoder Since partial decoding is used the keyboard circuitry is mapped to several...

Страница 28: ...TA pin 25 and LED_CLOCK pin 24 signals LED_SEL0 U1 pin 26 must be asserted low active to update LEDs 1 34 Likewise LED_SEL1 U2 pin 26 must be asserted to update LEDs 35 50 The output current used to d...

Страница 29: ...FUNCTIONAL 4 DESCRIPTION Section 4 page 4 8 Functional RCP 48X...

Страница 30: ...s 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 5...

Страница 31: ...this manual for a RMA prior to shipping Adjustment Alignment The RCP 48X has no adjustments Troubleshooting Troubleshooting an RCP 48X requires the routing switcher system to be used as a test fixtur...

Страница 32: ...at the chip or component level 2 If power is functioning properly the CPU is not operating The CPU requires a clock a power up reset communications from the Controller Refer to the CPU Board function...

Страница 33: ...MAINTENANCE 5 Section 5 page 5 4 Maintenance RCP 48X...

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