Midian Rd-10 User manual

RD-10

10 Input / 10 Output Remote Monitor and Remote Control

Manual Revision: 2010-08-10

Covers Firmware Revisions:

4.0 & Higher

Covers PCB Revisions:

American Communication Systems

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TABLE OF CONTENTS

Specifications 3

General Information 4

Hardware Installation 5

Operation 6

Product Programming 10

Technical Notes 12

Contact Information 12

SPECIFICATIONS

Voltage/Current:

Operating Voltage 12 VDC

Operating Current 15 mA

LED Current 2 mA each

Relay Current 17 mA each

Audio Inputs

Input Level 400 mVRMS

Input Impedance 470KΩ

Dynamic Range 25 dB

Format DTMF

SINAD Ratio 9 dB

Band Width 2.5%

Twist 10 dB

Audio Outputs

PTT Output Current 200 mA

Audio Output Level 1V RMS

Audio Output Impedance 10KΩor 27KΩ

Timing

DTMF Tone On Time 50 msecs

DTMF Tone Off Time 50 msecs

Key-Up Delay Programmable

Total Packet Time 700msec min-950msec Max

Decoding Sequence

5 to 8 Digits #XXXG*N#

(N=command) (XXX=0 to 3 digit base address)

(G=I/O Group 0 to 9)

Transpond Sequence

5 to 8 Digits #XXXG*N#

(N=status) (XXX=0 to 3 digit base address)

(G=I/O Group 0 to 9)

Mechanical

Standard Dimension 4" x 5.25" x 1.5"

Operating Temperature -30oto +60oC

GENERAL INFORMATION

The RD-10 is a single function remote control and alarm, with status monitor for placement in the field. It has ten

open collector outputs that can be set for momentary, latched, or repetitive On/Off output from a manual DTMF

keypad, another RD-1, RD-10 or an RC-10.

The RD-10 has ten Inputs which can be debounced, timed, and monitored from the controlling unit. These inputs

can be used to verify that an output has occurred or to report an alarm. The polarity of the inputs and outputs can

be programmed independently (logic high or logic low).

When used in conjunction with a base controller, the RD-10 can control and monitor a variety of systems,

including lighting systems, water pumps, well sites, industrial equipment, radio repeater sites, waste treatment

facilities, pipeline systems, mine shaft ventilators, etc. The RD-10 can also be used as an alarm reporting

terminal. All features on the RD-10 are fully programmable using Midian’s Remote Programmer software.

HARDWARE INSTALLATION

Be certain to follow standard anti-static procedures when handling any of Midian’s products.

P1-1 to P1-10: Opto-Isolated Inputs: These are the high side status inputs of the opto isolators. See Isolator

Terminal statement on P1-12.

P1-11: V Com-2: This is a V common for inputs 5-10 of the optional opto isolators. In the schematic you will

notice that one side of each opto isolator is connected to V Common. V Common could be a positive or negative

voltage between 5 and 50 Volts, or 110 Volts AC. It is extremely important that the series resistors on each opto

isolator be correctly determined to avoid too much current through the opto isolator, especially when using 110

Volts AC. Use extreme caution when working with high voltages.

P1-12: V Com-1: Same as V-Com 2 but pertaining to inputs 1-4

P1-14: COR Input: Connect to point in Squelch or CTCSS circuit that changes logic level when a carrier is

received. A radio whose squelch circuit provides a logic low or a logic high can readily turn the COR transistor on

and off. If the point that this lead is hooked to only makes a minute change in voltage, it will be necessary to

adjust the values of R13, R14, and R15 to cause Q1 to change states. Note: This connection is mandatory.

P1-15: Modulation Audio: Connect to modulator circuit. This lead is used to transpond verification that the

controlled event has occurred. Use high impedance point in radio. Low-Z may cause low frequency rolloff across

tone output coupling cap C32 and tone output resistor R58. In Low-Z mic circuits, it may be necessary to short

out resistor R58. Note: Adjust R-57 for 3.3 KC deviation.

P1-16: Program In: Connect the green clip lead from the KL-3. The black KL-3 clip lead should be connected to

P1-20.

P1-17: PTT Out: Connect to the radio’s Push To Talk circuit.

P1-18: Tone Input: Connect to a squelched or unsquelched audio point in the receiver, usually the high side of

the volume control or discriminator input. Note: Adjust the receiver audio level to approximately 300 mV p-p at P1-

18.

P1-19: 12 VDC: Connect to 12 VDC.

P1-20: Ground: Connect to the nearest ground point.

P2-1 (also P2-3, 5, 7, 9, 11, 13, 15, 17, 19): Common Relay: This is the common relay pin for relays 1-10.

P2-2 (also P2-4, 6, 8, 10, 12, 14, 16, 18, 20): Relay or Open Collector: This is a normally open contact for the

relay. Removing the NO jumper and replacing it with the NC jumper changes it from normally open to normally

closed. If an open collector transistor output to ground is desired then install the bypass jumper. Be careful not to

install these bypass jumpers when using the relay. This could feed voltage back into the output switching

transistors damaging them and possibly the microprocessor. In addition, when switching more than 15v the

associated output caps C39-C48 must be removed.

OPERATION

Output Operation:

Each of 10 outputs on the RD-10 can be individually commanded to turn on or off from a remote location. The

outputs can be commanded manually from a variety of remote control devices, including:

•a field radio with a DTMF keypad

•a Midian RD-1 or RD-10

•a Midian RC-10

The state of each output can be individually programmed to be on, off or assume the last known state when

power is applied, in the event of power failure. The operation of the output can be programmed to be Latched,

Momentary, or produce a Repetitive On-Off-On-Off pattern.

In Latched mode, the output assumes the necessary state (i.e., on or off) and will remain in that state until

commanded otherwise. If power is removed and re-applied, the output will assume a pre-programmed power up

state (which can be set to on, off or last) until commanded to another state.

In Momentary mode, the output assumes the on state for a specified duration of time and then turns off. The

duration can be programmed from 1 to 86400 seconds (24 hours). The momentary output pulse will be produced

each time a turn on command is received from the controlling unit. If the output receives another command to

turn on while the actual state of the output is still on, the on time will be reset. The RD-10 can be programmed to

report the actual output state as opposed to the internal output state. The RD-10 can also be programmed to

produce true momentary action when the commanding unit is an RC-10.

In Repetitive operation, both the on and off times can be programmed from 1 to 86400 seconds (24 hours). The

on-off-on-off pattern begins when the output is commanded to turn on. The pattern will repeat until a turn off

command is received. If a turn on command is received when the pattern is running, the unit will reset to the

beginning of the on time period and turn the output on regardless of the state of the output before the turn on

command was received. The RD-10 can also be programmed to report the actual state of the output as opposed

to the internal state.

Input Operation

The RD-10 has 10 digital inputs with debounce timers that can be programmed from 0 to 9.9 seconds in 100ms

increments. The shorter time periods can be used to debounce electrical contacts, switches and other short time

constant devices. The longer time periods can be used to debounce mechanical devices with longer time

constants such as a level switch in a liquid holding tank.

The debounced state (On/Off) of the inputs on the RD-10 can be queried when the unit is manually controlled

from a hand held or mobile radio. If the RD-10 is controlled from another RD unit, a change in a debounced input

can generate a report to the controlling unit. The input state changes that cause an I/O Status Report are

selected in the Remote Programmer software.

If the RD-10 is controlled from an RC-10, a change in the state of a debounced input can generate a report to the

RC-10. As above, the input state changes that are selected in the Remote Programmer software cause an I/O

Status Report to be generated. Additionally, the change in state can be considered an Alarm condition and

reported to the RC-10 as such. The input state changes that are considered an Alarm condition can also be

programmed by selecting the desired Alarm Condition in the Remote Programmer software. In order for an Alarm

to be reported, both the I/O Status Report column and the Alarm Condition column must be checked next to the

desired condition.

When the corresponding output is commanded to turn on or off, the event timer is reset. When the event time

expires, the debounced input is sampled and an Event Alarm can be generated. What conditions determine if the

Alarm is sent are programmable using the Event Alarm Condition column. An event timeout is always an Alarm

condition and is always reported if the sampled input state is designated as an Event Alarm Condition.

Alarm And Report Queuing

Both Status Report/Alarms and Event Alarms are normally queued in case the channel is busy when the

conditions that cause them occur. The transmissions will be sent when the radio channel becomes available.

This feature can be turned off separately for both Status Reports/Alarms and Event Alarms. Status

Reports/Alarms that have been de-queued will be re-sampled and the transmission will occur only if the original

conditions still exist when the radio channel becomes available. Event Alarms that have been de-queued will be

lost.

Communication Methods

The RD-10 can communicate with other devices using one of the following three methods.

Manual: The manual communication method provides a means of operating the RD-10 from a radio with a DTMF

keypad. The security timing is disabled when using the manual communication method to allow manual dialing

from a hand held or mobile radio. The RD-10 transponds with an audible low→high (on) or high→low (off) tone

sequence. All spontaneous reporting of input status, output status or alarms is disabled. However, the manual

operator can query the RD-10 to transmit the output, input or alarm status. Each output can be commanded to

turn On or turn Off by sending the appropriate address and command sequence from the DTMF keypad. The

momentary On time and On/Off sequence timing for each individual output can be remotely set in the field if the

Allow Remote Interval Programming feature is enabled when the unit is initially programmed.

RD to RD Communication: The RD-10 unit can communicate with another RD-10 or multiple RD-1 units.

Security timing and spontaneous reports are enabled. Manual dialing will not meet security timing criteria.

Typically, the local RD's output will reflect the state of the remote RD's input and vice versa. Each RD unit

transponds in a manner that causes the other RD unit's Output to turn On or Off depending on the Input status of

the transponding unit. Other RD to RD operational modes are available.

RC to RD Communication: The RC to RD communication method provides for full status reporting to an RC-10.

The controlling system can command each output on the RD-10, as well as display the INPUT status, the Output

status, and Alarm conditions reported by the RD-10. The controlling system can also detect and report an alarm

condition if the unit does not transpond within a programmable period of time indicating a communication failure.

Manual Command Summary

Turn Output Off #XXXG*0#