Murphy Network Card RMU16 User Manual

RMU-97069B  
Revised 07-99  
Catalog Section 50  
(00-02-0318)  
®
FRANK W.  
MFR.  
Remote Monitoring Unit  
RMU16 Model  
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Remote Status Inquiry by Telephone or Computer  
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Automatic Alarm Dial Out with Built-In Voice  
Annunciation to Eight Telephone Numbers  
Broad Communications Capability, Built-In Modem and  
Datalogger with Real Time Clock  
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Uses Any Communication Software or ASCII Terminal  
Seven Analog Inputs (8-Bit Resolution) Plus  
Speed Input or Additional Analog  
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Direct Interface to Digital Annunciator via BCD Port  
Class I, Div. 1, Grps. C & D, Explosion-Proof Enclosure  
Basic Operation  
Standard Features  
Description  
User Definable Inputs  
The RMU16 module allows you to communi-  
cate in Data or Voice mode. Both the Data and  
Voice modes allow access to your equipment at  
any time via standard touch-tone dial tele-  
phones or a personal computer.  
The RMU16 is a powerful component for remote  
equipment monitoring, control and datalogging.  
Each of the 4-20 mA analog inputs has program-  
mable alarm and control setpoints. The RMU16  
will scale to engineering units when the user enters  
top of scale and bottom scale values. It accepts a  
wide range of inputs in any combination. The  
optional frequency input is to measure RPM.  
The RMU16 BCD interface is compatible with  
Murphy’s digital annunciators, allowing the  
RMU16 to monitor 32-48 digital inputs as well.  
The RMU16 performs functions such as  
remote alarm monitoring and processing, start  
and stop via touch-tone telephone or personal  
computer, automatic dial out with built-in  
voice annunciation, data logging, data acquisi-  
tion, and telecommunications.  
When operating the RMU16 in Data mode, an  
ASCII terminal or computer is used to access  
various functions. Commands are entered on  
the keyboard, and response messages are dis-  
played on the monitor.  
The RMU16 features include a real time clock,  
built-in modem and password protection. The  
unit can be powered by 10-32 VDC systems  
and it comes loaded with operating software.  
Control Over Standard Phone!  
Experience the convenience of inquiry into con-  
dition and status from any standard telephone.  
Control outputs may be turned on or off via  
touch-tone. Analog values and BCD status are  
reported in clear digitized speech, allowing the  
user to perform control functions and check on  
their effects almost instantaneously.  
The commands to access the information are  
simple 3-letter codes (e.g. INP = input, ALM =  
alarm, PHO = telephone), generally followed  
by a fourth letter (e.g. R = report, S = set).  
The RMU16 includes eight (8) analog inputs  
and two (2) relay outputs. Each of the eight (8)  
inputs accepts 4-20 mA signals such as  
Murphy’s PXMS pressure transducers, RTDT,  
RTDTX temperature transmitters (NOTE:  
PXMS, RTDT, RTDTX require 24 VDC power  
supply). One of the analog inputs can be con-  
figured to accept a magnetic pickup input for  
speed monitoring.  
In Voice mode, the RMU16 can be called to  
inquire into conditions and status. When an alarm  
condition exists, the RMU16 will automatically  
call the telephone numbers pre-programmed.  
Data mode allows the user to review I/O, reconfigure  
the unit remotely, and download datalogger records.  
Works with Any ASCII Terminal.  
Applications  
There is no need for specialized SCADA® or  
MMI® software. The open protocol allows virtu-  
ally any communications package to communi-  
cate with the unit. The user may simply opt to  
run Hyper-Terminal® under Windows® to do con-  
figuration, control the unit and perform other  
SCADA® functions.  
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Voice alarming systems  
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Remote monitoring upgrade for panels  
containing Murphy Mark III annunciators  
The RMU16 accepts BCD inputs, such as  
those provided by Murphy’s MARK III digital  
annunciator, allowing for remote monitoring  
of the annunciator sensor inputs.  
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Remote compressor sites  
Flood control  
The RMU16 also provides two (2) form “C”  
relay outputs for ON/OFF control applications.  
Pumps and engines  
All products indicated by trademark symbols are trademarked and/or registered by their respective companies.  
 

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