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Summary of Contents for Peninsula Engineering Solutions RMAS-120
- Page 1 RMAS-120 Alarm For Microwave RF Repeater Systems Operations Manual 550-0782-01 Revision F1 December 2021 Corporate Headquarters 1700 North Market Blvd, STE 101 Sacramento, California 95843 USA Telephone: +1 916-928-6000 Facsimile: +1 916-928-6060 www.peninsulaengineering.com...
- Page 2 Peninsula Engineering Solutions authorized staff is forbidden. By accepting this operations manual from Peninsula Engineering Solutions, you agree to hold, in strictest confidence, and not to use or to disclose to any person, firm or corporation, without the express written permission of Peninsula Engineering Solutions, the materials and information herein.
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Page 3: Product Features
Has 7 digital inputs and 1 analog input allocated to user designation. Has real time telemetry of battery plant voltage and cell temperature. Retrofits with all Peninsula Engineering Solutions microwave Repeaters, except RF-1500 and RF-2000 Repeaters produced by legacy companies before 1994. ... - Page 4 This page intentionally left blank. Product Applications and Features...
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Page 5: Table Of Contents
RODUCT EATURES ....................1 NTRODUCTION AND YSTEM VERVIEW Using This Manual ....................... 1 RMAS-120 Alarm System Reference Documents ............2 General Information ..................... 2 Product Description ..................... 3 Technical Summary ..................... 5 1.5.1 General ........................5 1.5.2 Standard Transmitter ....................5 1.5.3... - Page 6 ............17 NSTALLATION NSTRUCTIONS TANDARD QUIPMENT General........................17 Inspection and Receipt of Unit ................... 17 Standard Receiver Assembly ..................17 3.2.1 Standard Receiver Connections ................23 Standard Transmitter Assembly ................. 24 3.3.1 Factory Installed Option ..................24 3.3.2 Field Installation ..................... 24 3.3.3 Field Adjustments ....................
- Page 7 IST OF IGURES Figure 1.1 Location of the RMAS-120 transmitter in an RF Repeater ......... 4 Figure 2.1 RMAS-120 Standard Transmitter Block Diagram ............ 12 Figure 2.2 Standard Receiver Block Diagram................14 Figure 3.1 RMAS-120 Standard Receiver Module, Front and Back Views ....... 18 Figure 3.2 AGC Connection Diagram ..................
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Page 9: Introduction And System Overview
Introduction and System Overview includes a general product description, a functional description, technical specifications, and ordering information. Chapter 2 Technical Description explains the function and operation of the RMAS-120. Chapter 3 Installation Instructions outlines the procedures to install the standard alarm equipment. Chapter 4 Maintenance and Troubleshooting outlines the routine checks required to maintain performance and address problems. -
Page 10: Rmas-120 Alarm System Reference Documents
Both the transmitter and receiver modules of the RMAS-120 have LEDs (Light- Emitting Diodes) for visual alarm indication and contact closures (opto-couplers). The contact closures allow the operator to connect alarm information into a standard supervisory system. -
Page 11: Product Description
Repeater cabinet. The indoor receiver equipment mounts in an EIA 19-inch rack. See Figure 1.1 for a view of the RMAS-120 transmitter installed within a Repeater cabinet. The RMAS-120 transmitter is located on the inside of the door. Chapter 1 Introduction and System Overview... -
Page 12: Figure 1.1 Location Of The Rmas-120 Transmitter In An Rf Repeater
Figure 1.1 Location of the RMAS-120 transmitter in an RF Repeater Chapter 1 Introduction and System Overview... -
Page 13: Technical Summary
Technical Summary 1.5.1 General Serial Data Stream Data Transfer Rate ....... 34 bps, 68 baud (encoded) Encoding ..........Manchester or Bi-Phase Wave shaping ........Butterworth Response Modulation ..........AM (Amplitude Modulation)* *1 ±0.3 dB peak to peak, 6% depth of modulation. Digital Alarm Points Battery A Major (low voltage) 2 ~ 8 RF Low Power Alarms (F1 ~ F8) -
Page 14: Snmp, Uhf Radio Extension, Transmitter Subsystems, 900 Mhz
1.5.3 SNMP, UHF Radio Extension, Transmitter subsystems, 900 MHz Part Number 090-0783-21 090-0783-22 090-0783-23 090-0783-24 Radio Frequency 902~928 MHz 902~928 MHz 902~928 MHz 902~928 MHz RF Transmit Power +20 ~ +30 dBm +20 ~ +30 dBm +20 ~ +30 dBm +20 ~ +30 dBm RF Receive -99 dBm... -
Page 15: Standard Receiver
1.5.4 Standard Receiver Input Source ......... Radio AGC (Automatic Gain Control) Voltage Output AGC Loading ........100 k Ohms, AC Coupled AGC Sense .......... Balanced Differential Input Alarm Outputs 27 Opto-Couplers ......... 10 mA max current & 30 V max voltage, floating Power Requirements Voltage .......... -
Page 16: Ordering Information
Ordering Information The type of RMAS-120 to be ordered depends upon the configuration of Repeaters which will be monitored. To order the RMAS-120, specify the proper part numbers—see System accessories and modification kits are listed in Table 1.C. Table 1.A. To order spare parts, specify the part and the part number of the spare—see Table... -
Page 17: Table 1.C Accessory And Modification Kits
Each shipment also includes an equipment list. Contact Peninsula Engineering Solutions’ corporate headquarters for sales information or technical assistance for the RMAS-120, or any of our communications’ or related products. Corporate Headquarters... - Page 18 This page intentionally left blank Chapter 1 Introduction and System Overview...
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Page 19: Technical Description
ECHNICAL ESCRIPTION System Description The RMAS-120 consists of a transmitter and a receiver unit used to monitor conditions at an RF Repeater site. The standard RMAS-120 communicates data by means of telemetry signal amplitude modulated on the microwave carrier signal passing through the RF Repeater. -
Page 20: Standard Transmitter
When ordering the RMAS-120, the transmitter unit must be specifically ordered for work with different microwave frequency and amplifier configurations. The standard alarm receiver has dual inputs for diversity microwave systems which allow it to automatically adjust to the stronger AGC input in such systems. -
Page 21: Transmitter Alarm Leds
2.3.2 Standard Alarm Data Transmission The RMAS-120 transmits the alarm data stream in sequential frames (96 bits) with four frames per each complete data sequence. Each frame contains 27 bits for the digital alarm inputs, 32 bits for the A/D telemetry (4, 8-bit channels), and 37 framing bits for receiver synchronization. -
Page 22: Standard Receiver
10 milliseconds. Standard Receiver The RMAS-120 standard receiver is located at the terminal radio site and can operate from a wide range of power supply voltages (21 VDC to 72 VDC, polarity strappable). This allows compatibility with either 24 VDC or 48 VDC power sources. - Page 23 4. Data corresponding to the digital inputs are evaluated by a software check, which monitors the data stream in packets of three (3 b) consecutive bits. If these bits are identical, the data is correct and the condition is displayed or reported. The update time for any new data is 9 to 12 seconds.
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Page 24: Standard Receiver Alarm Outputs
The SYNC LOSS status can be wired to standard supervisory equipment with opto-coupler contacts. Supervisory personnel can remotely monitor when alarm data is not current and inspect the Repeater and the RMAS-120 to detect the cause of synchronization loss. Chapter 2 Technical Description... -
Page 25: Installation Instructions Standard Equipment
TANDARD QUIPMENT General The RMAS-120 standard alarm transmitter is factory installed when a new repeater is ordered or installs in an existing Peninsula Engineering Solutions’ Microwave RF Repeater. The standard alarm transmitter module is also included in the UHF radio linked configurations where it generates the alarms and telemetry for transmission. -
Page 26: Figure 3.1 Rmas-120 Standard Receiver Module, Front And Back Views
Figure 3.1 RMAS-120 Standard Receiver Module, Front and Back Views To install the standard receiver assembly: 1. Mount the standard receiver assembly on the same equipment rack of the radio receiver, or as close to the receiver as possible. The receiver shelf mounts on a standard 19-inch wide EIA rack, requiring one vertical mounting space. -
Page 27: Figure 3.2 Agc Connection Diagram
5. In applications without radio diversity, connect both AGC DIV+ and AGC DIV- inputs to the alarm receiver shelf ground. Figure 3.2 AGC Connection Diagram 5. Turn receiver Power ON. 6. Note: The standard transmitter must be ON and sending data before performing this test. - Page 28 The formula for calculating temperature from the voltage signal is as follows: Temperature (° C) = [VDC (at test point) - 4] x 10 Example: Temperature (° C) = (2.2 V - 4) x 10 Temperature = -1.8 x 10 Temperature = -18°...
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Page 29: Table 3.B J1 Pin Number Assignments
Table 3.C, for pin descriptions of the J1 and J2 connectors. See Figure 3.3 for a visual representation of the connectors. Table 3.B J1 Pin Number Assignments Definition Definition Definition Number Number Number J1-1 UC 6 + J1-14 DOOR - J1-26 J1-2 UC 5 -... -
Page 30: Table 3.C J2 Pin Number Assignments
Table 3.C J2 Pin Number Assignments Definition Definition Definition Number Number Number J2-1 PWR F8 + J2-14 PWR F1 - J2-26 AMP 6 + J2-2 PWR F7 - J2-15 PWR F1 + J2-27 AMP 5 - J2-3 PWR F7 + J2-16 BATT B - J2-28... -
Page 31: Standard Receiver Connections
Figure 3.3 Standard Receiver Alarm Outputs 3.2.1 Standard Receiver Connections Wire supervisory equipment to the connections of the receiver assembly according to system needs. When wiring, note the following: The two 37-pin connectors J1 and J2, in the rear of the receiver assembly, are for local use or connection to other supervisory equipment. -
Page 32: Standard Transmitter Assembly
See Figure 3.4 for an illustration of the Standard Transmitter Assembly. 3.3.1 Factory Installed Option When the RMAS-120 is ordered with a microwave Repeater, the standard alarm transmitter is installed inside the Repeater cabinet at the factory. However, some adjustment is required. -
Page 33: Figure 3.4 Standard Transmitter Assembly
Figure 3.4 Standard Transmitter Assembly Chapter 3 Installation Instructions... -
Page 34: Figure 3.5 Standard Transmitter Assembly Front View
RMAS-120 Figure 3.5 Standard Transmitter Assembly Front View Chapter 3 Installation Instructions... -
Page 35: Field Adjustments
Place the PWR ON switch in the ON position. 3.3.4 Uncommitted Inputs The RMAS-120 standard transmitter has seven (7) digital and one (1) analog uncommitted inputs available. Each digital input will transmit an alarm upon contact closure across the differential input pins. These uncommitted inputs are made to the terminal block labeled TB1—see Figure 3.5. -
Page 36: Waveguide Pressure Switch (Optional)
When properly installed, the switch will activate an alarm in the RMAS-120 when the gas pressure from the pressure connection decreases to within 1 psi (pounds per square inch) of the ambient air pressure. -
Page 37: Battery Temperature Transducer
6. Splice the wire from Waveguide IN + to the brown wire of the Pressure Switch Assembly. 7. Splice the wire from Waveguide IN - to the blue wire of the Pressure Switch Assembly. 8. Secure the Pressure Assembly to the equipment rack. 9. -
Page 38: Rf Low Power Alarm Setting
The formula for calculating temperature from the voltage signal is as follows: Temperature (° C) = [VDC (at test point) - 2] x 20 Example: Temperature (° C) = (1.1 V - 2) x 20 Temperature = -0.9 x 20 Temperature = -18°... -
Page 39: Amplifier Modulation Setting
Table 3.G RF Low Power Alarm Setting PWR Fx Test ADJ Point PWR Fx Test ADJ Point (mV) (mV) 4.90 4.00 4.80 3.50 4.70 3.00 4.60 2.50 4.50 2.00 4.40 1.50 4.30 1.00 4.20 0.50 4.10 0.00 3.3.8 Amplifier modulation Setting There are two sets of 8-position switches labeled MODULATION for amplifiers 1 through 8. -
Page 40: Figure 3.6 Tandem Rf Repeater Configurations
Figure 3.6 Tandem RF Repeater Configurations Chapter 3 Installation Instructions... -
Page 41: Opto-Coupler Strapping
There are two 37-pin user connectors on the transmitter assembly marked J2 and J3. The signals from J2 and J3 are for local site status or connection to other supervisory equipment such as the RMAS-120 UHF Radio Link equipment. See Table 3.H Table 3.I... -
Page 42: Table 3.I Standard Transmitter J3 Pin Number Descriptions
Table 3.I Standard Transmitter J3 Pin Number Descriptions Description Pin Description Number Number W G J3-1 J3-20 J3-2 J3-21 BATT A MAJ + BATT A MAJ J3-3 UC 1 + J3-22 UC 1 J3-4 J3-23 BATT B MAJ + BATT B MAJ ... -
Page 43: Maintenance And Troubleshooting
AINTENANCE AND ROUBLESHOOTING The use of highly reliable components in the RMAS-120 virtually eliminates the need for frequent maintenance. Unless the RMAS-120 is installed in an extremely harsh environment, routine checks should be performed annually. Such checks will ensure proper operation and early detection of problems. -
Page 44: Standard Receiver Troubleshooting
3. If the SYNC LOSS LED is still flashing, use an oscilloscope to observe the presence the alarm data at the test point labeled DATA of RCVD on the front panel. If the signal is not present, contact Peninsula Engineering Solutions. Return Procedure Once it is determined that a unit is faulty or technical assistance is necessary, contact the Peninsula Engineering Solutions’... -
Page 45: Glossary
LOSSARY This glossary defines communications industry acronyms, symbols, and terms. Hardware- and software-related acronyms have also been included. As this glossary supplements many operations manuals of Peninsula Engineering Solutions, not all items listed here necessarily appear in this manual. Ampere (measure of electrical current) Alarm Control Unit Automatic Level Control Baud... - Page 46 Hertz (frequency, cycles per second) Indoor Unit (radio type, modem unit) Intermediate Frequency Intermodulation Intermodulation Distortion Light-emitting diode Low Noise Amplifier Local Oscillator, high-level input into mixer. kilohertz (frequency, 1000 cycles per second) Multipath Radio propagation between a transmitter and receiver where the received signal is a compound of multiple rays that have undergone one or more reflections and/or refractions.