MDC Two-Wire
Decoder Single Site Central Control System
If you’re looking for an alternative to traditional controller systems,
the Rain Bird MDC Two-Wire Decoder system may be the right solution for you.
Decoders are essentially simple and reliable switching stations. They work just
like conventional controller stations outputs but are installed with the individual
valves in the valve box. A two-wire cable interconnects the MDC Controller
and the Decoders providing control of up to 200 valves (400 solenoids).
A technology long since proven in Europe,
decoder systems are quickly gaining popularity in the U.S.
commercial market. Over 500,000 Rain Bird Two-Wire Decoders
have been installed worldwide over the past 20 years. MDC
Two-Wire Decoder systems provide cost-effective control of
a large number of valves over two wires. MDC
is ideal for multi-phase projects where the two-wire cable can be stubbed out
for future expansion.
Decoders can be easily added to the system anywhere
along the two-wire path at any time providing ultimate flexibility.
The MDC Controller comes with software that provides local
or remote programming and management of the system from a
computer. The controller is modular and has an expandable
capacity from 50 to 200 decoder address (in 50 address increments).
Features and Benefits
Control and monitor the system locally or remotely via
computer – software provided with controller
Increase flexibility and confidence with UL listed, indoor/outdoor,
modular MDC controller
Improve aesthetics and reduce chance of vandalism with
in-field controls installed in valve boxes
Protect against the elements with completely encapsulated
electronic decoder components
Utilize less wire than conventional controller systems
Simple two-wire system can be spliced or stubbed-out
for ultimate versatility
Pre-coded decoder addressing eliminates confusion associated
with switch-based addressing
A Cost-Effective Alternative
A simple wiring configuration and absence of protective enclosures
keeps the cost of installation and maintenance low. Traditional
controllers require dedicated wiring to each valve location.
Decoder systems utilize a single two-wire path to connect
to all valve locations saving money and labor.
Protect Against the Elements
All electronic components of the MDC
decoders are fully sealed within a watertight enclosure,
virtually eliminating damage from floods, frost, rodents
or vandals.
Flexible Control
The MDC Two-Wire Decoder system offers the flexibility and
confidence that has become synonymous with Rain Bird products.
Whether your site requires an indoor or outdoor installation,
a UL listing or an expandable option, the MDC controller
will meet your needs.
In-Field Control Options
The addition of decoders doesn’t mean the elimination
of in-field control. Decoders can be turned on and off in
the field with a plug-in Rain Bird Field Transmitter. The
Rain Bird Field Transmitter is a portable key pad that can
be plugged into the system at certain points on the site
to provide on-the-spot control.
Right Amount of Control
Select different decoders to operate one, two, four, or six
valves/solenoids. Five different decoders let you choose
the amount of control you need.
DPU-210 Decoder Programming Unit tests and verifies operation
of decoders. Also allows for re-programming decoder
addresses for maximum site set-up flexibility.
Controller Specifications
Model:
MDC-50-200 is capable of controlling
50 decoder addresses, with expanded capacity of up to 200
addresses in increments of 50 utilizing MDC/M50D expansion
modules. MDC-200 is capable of controlling up to 200 decoder
addresses.
Input voltage:
120V / 60Hz ±10%
Output voltage:
34Vpp (24V AC)
Maximum number of decoder addresses:
50/100/150/200 depending on model selection and/or number
of expansion modules.
Maximum number of simultaneous valves:
10 irrigation valves plus 1 non-irrigation valve
Programs:
10 + 1 auxiliary
Maximum number of simultaneous programs:
2+1 auxiliary
Irrigation methods:
Steps
Days:
14, every X day (X=1-14)
Start times:
6 per program
Start methods:
Day and time start, every X day + first day
Pausing of programs:
Yes
Run time:
0-999 minutes
Water Budget:
0-250%
Pump Control:
1 master and 2 booster pumps
Manual operation:
Individual decoders or programs
Sensors:
One direct sensor input on controller:
on/off switch (rain or alarm.) 2 sensor
decoders (for one flow and one on/off
sensor) can be installed anywhere on
the line.
Overload protection:
Electronic
Test:
Built-in diagnostics
Monitoring:
Active decoders shown with remaining time, all actions logged
in memory. Log has 1500 action capacity.
Field Transmitter:
Optional
Models
Controllers
MDC-50-200 – Controls up to 50 decoder addresses;
expandable up to 200 decoder addresses using MDC/M50D
MDC-200 – Controls up to 200 decoder addresses
MDC/M50D – expansion modules for MDC-50-200; maximum
3 additional modules may be used on the MDC-50-200
Accessories
FT-210/B Field Transmitter for field operation of the
system; includes bag
PED-250 Pedestal for Field Transmitter
FTB-250TURF Field Transmitter Connection Box
CO-210/CA Socket for Field Transmitter / Cabinet Mounting
CO-210/EX Socket for Field Transmitter / External Mounting
CO-210/CO Cover for CO-210/CA and CO-210/EX
Tools
VM-250 Volt/Ohmmeter for AC/DC with LCD display. 0-600V,
0.1-40 Mohms
Tech
Specs
Installation Poster
