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Summary of Contents for RJM ARTS-201B
- Page 1 ARTS-201B 2 x 1 Analog Protection Switch RJM & Associates, LLC 175 Joerschke Drive, Suite A Grass Valley, CA 95945 Phone: 530-205-3437 Fax: 530-273-8482 info@rjmandassociates www.rjmandassociates.com...
- Page 2 Statement of Warranty Statement of Warranty RJM & Associates, LLC warrants its products for a period of three (3) years from the date of shipment to be free from defects in materials and workmanship and meets applicable published specifications. Equipment which has been operated...
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Page 3: Table Of Contents
Table of Contents Table of Contents Table of Contents Table of Contents Introduction Introduction Introduction Introduction Important Safeguards and Notices ................i Important Warnings and Cautions ................ii Warnings ......................ii Cautions ......................iii North American Power Supply Cords ..............iv Section I Section I Section I... -
Page 4: Important Safeguards And Notices
Important Safeguards and Notices Important Safeguards and Notices Important Safeguards and Notices Important Safeguards and Notices Information on the following pages provides important safety guidelines for both Operator and Service personnel. Specific warnings and cautions will be found throughout the manual where they apply, but may not appear here. -
Page 5: Important Warnings And Cautions
Important Warnin Important Warnings and Cautions Important Warnin Important Warnin gs and Cautions gs and Cautions gs and Cautions Warnings Warnings Warnings Warnings • Heed all warnings on the unit and in the operating instructions. • Do not use this product in or near water. •... -
Page 6: Cautions
Warnings (continued) Warnings (continued) Warnings (continued) Warnings (continued) • If equipped with redundant power, this unit has two power cords. To reduce the risk of electrical shock, disconnect both power supply cords before servicing. • This equipment may employ laser(s). If it does, they comply with the current construction requirements of the code of Federal regulations, title 21, chapter I, subchapter J, sections 1010.2 and 1010.3 and sections 1040.10 and 1040.11. -
Page 7: North American Power Supply Cords
SMT or ASIC components. For this reason, service and repair of RJM products incorporating surface mount technology are supported only on a module exchange basis. Customers should not attempt to troubleshoot or repair modules that contain SMT components. - Page 8 Note: Note: Note: Note: This equipment has been tested and found to comply with the limits for a class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
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Page 9: General Description
There are three types of signal inputs to the ARTS-201B for each of the A and B inputs; analog video, analog audio and GPI. The video input terminates in 75 ohms and has a differential input to remove any common mode hum. - Page 10 Control is used for external transfer control and also function monitoring of the ARTS-201B. See the table on page 18 for the pin out of the connector. The frame has space for two power supplies for redundancy, with the output of each supply voltage diode OR’d with the same output of the other supply.
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Page 11: Specifications
SECTION II SECTION II SECTION II SECTION II ARTS ARTS ARTS ARTS- - - - 201B 201B 201B 201B Specifications Specifications Specifications Specifications Video: Video: Video: Video: Inputs: Number 2 (Input A & Input B) Input type Differential, video instrumentation Impedance >100K , bridging to 75 Common Mode Rejection (CMRR) - Page 12 ARTS ARTS- - - - 201B Specifications, (cont.) 201B Specifications, (cont.) ARTS ARTS 201B Specifications, (cont.) 201B Specifications, (cont.) Audio: Audio: Audio: Audio: Inputs: 8, (4 Channels Input A & 4 Channels Number Input B) Impedance >100K Input type Balanced, differential Common Mode Rejection (CMRR) >70dB, 20Hz to 20KHz Maximum level...
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Page 13: Installation
Installation Installation The RJM ARTS-201B input transfer unit is designed to be mounted in a standard 19” equipment rack. There are no special cooling requirements though care should be taken to ensure that extremely hot equipment is not installed directly beneath. - Page 14 J9 J9 J9 is utilized to determine whether the ARTS-201B unit is powered up in the automatic or manual mode. After power up, the pushbutton inside the front cover can always be used to override the power up selection.
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Page 15: Circuit Description
SECTION IV SECTION IV SECTION IV SECTION IV ARTS ARTS ARTS ARTS- - - - 201B 201B 201B 201B Circuit description Circuit description Circuit description Circuit description Video Path Video Path: Video Path Video Path Only one signal path, A, will be described since both A and B paths are the same. -
Page 16: Audio Path
ARTS-201B. All four channels of A audio are also routed to NC contacts on relays K5, K6, K7 and K8. The NO energized side of these relays comes from the four output amplifiers, U11, U12, U13 and U14 and the common pin connects to the audio output connectors. -
Page 17: Gpi Path
GPI Path: GPI Path: GPI Path: GPI Path: The A and B GPI inputs enter on female 9 pin ‘D’ connectors. The output GPI connector is a 9 pin ‘D’ male connector. The A and B GPI’s each go to opposite sides of a form C relay with the common pin of the relay going to the output GPI connector. -
Page 18: Status Output
conditions, if A video goes away a positive going pulse edge will be created at the input to U27:B clock and the output will toggle to the B inputs. This can only occur if the unit is in Auto mode. U32:B locks out edges that could change the selected inputs due to loss of video on the active channel. -
Page 19: Power Supply/Regulators
Power Supply / Regulators: Power Supply / Regulators: Power Supply / Regulators: Power Supply / Regulators: The unregulated voltage to the voltage regulators on the main board comes from either of two power supplies that can be removed at the front of the RTS frame for service and replacement. -
Page 20: Calibration Procedure
1. Power supplies. The voltages shown on the main board test points are nominal. The circuits employed in the ARTS-201B are not voltage level sensitive and the voltage values are not adjustable. Remove the PS#2 power cord from the source of AC. -
Page 21: Video
2. Video. 2. Video. 2. Video. 2. Video. Terminate the primary and backup input loops and output #2 with precision 75Ω terminations. Connect a one volt peak-to-peak staircase signal to the ‘A’ input. Operate the front push-button to ensure that the ‘A’ green status LED is illuminated. Connect output #1 to the oscilloscope and terminate in 75Ω. -
Page 22: Audio
Connect a one volt peak-to-peak signal to the ‘A’ input. Connect a different one volt peak-to-peak signal to the ‘B’ input. Operate the front push-button to ensure that the ‘B’ green status LED is illuminated. Connect output #1 to the oscilloscope and terminate in 75Ω. - Page 23 3.11 Disconnect all power to the unit and confirm that the ‘A’ audio input signal is routed to the ‘A’ channel output. 3.12 Repeat steps 3.10 and 3.11 for all four channels.
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Page 24: Diagrams
SECTION VI SECTION VI SECTION VI SECTION VI ARTS ARTS ARTS ARTS- - - - 201B 201B 201B 201B Diagrams Diagrams Diagrams Diagrams External Control Connector Pin Assignments GPI A & B Connector Pin Assignments... -
Page 25: External Control Connector Pin Assignment
ARTS ARTS- - - - 201B 201B ARTS ARTS 201B 201B EXTERNAL CONTROL CONNECTOR EXTERNAL CONTROL CONNECTOR EXTERNAL CONTROL CONNECTOR EXTERNAL CONTROL CONNECTOR 9 9 9 9 - - - - PIN ‘D’ PIN ‘D’ PIN ‘D’ PIN ‘D’ Power Supply Health (Low = Healthy) Input B Video Present/Input Health (Low = Video Present and Input Healthy) Number of Inputs (Low = 1 Input) - Page 26 ARTS ARTS- - - - 201B 201B ARTS ARTS 201B 201B GPI A GPI A, , , , B B B B and Output GPI A GPI A and Output and Output CONNECTOR and Output CONNECTOR CONNECTOR CONNECTOR 9 9 9 9 - - - - PIN ‘D’ PIN ‘D’...
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