Weed Instrument 2M30 Bi-Directional Module Guia De Especificação

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Safety and Warning Information 
 
Connect the DIN Rail, via the Model 2A09 End 
Clamp, to protective earth ground with low 
impedance.  The modules are grounded to PE 
when they are snapped onto the DIN Rail.  A 
Model 2A09 End Clamp on each side of the 
module bundle on the DIN rail prevents 
accidental disconnection of the modules’ 
interconnection bus. 
Weed Instrument Co., Inc. 
Fiber Optics Division 
 
Phone: 800-880-9333 
 512-434-2850
 
Fax: 512-434-2851
 
Email: 
fiberop@weedinstrument.com
 
Visit: www.weedinstrument.com 
Important Notice - Before utilizing the product, the user should 
determine the suitability of the product for its intended use.  The 
user assumes all risk and liability in connection with such use.  
WEED INSTRUMENT'S WRITTEN WARRANTY FOR THE 
PRODUCT IS MADE IN LIEU OF ALL OTHER WARRANTIES, 
EXPRESSED OR IMPLIED WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
PURPOSE.  The user's exclusive remedy for breach of Weed 
Instrument's written warranty shall be the repair or replacement 
of such quantity of product which is proven to be defective.  In no 
case shall Weed Instrument be liable for any special, incidental, 
or consequential damages based upon breach of contract, 
negligence, strict liability or other legal theory. 
Publication Number: 
RM0900177  Rev. 7/04 
Weed Instrument
Fiber Optics
EOTec 2000 MUX Model 
2M30 
Dual Channel, RS-232/485 
Installation Instructions
 
2 Channel, RS-232 or RS-485 
Serial Communications Module 
 
For use with the EOTec 2000 
Multiplexer (MUX) 
Power Requirements 
9VDC @ 200mA via 
the interconnection Bus 
from a 2A06 or 2A16 
power supply or the 
MUX Base Module 
(2M55, 2M57, 2M59 or 
2M61) 
 
Connections 
Pluggable, Cage Clamp 
Screw Terminal Blocks, 
Accept 12 to 24 AWG  
 
Serial Communications  Bi-directional, 
Half-Duplex 
 
Baud Rates 
 
RS-232: 9.6K to 115.2K 
   RS-485: 
9.6K 
to 
230.4K 
 
Wire Cable Termination  
RS-232  
none required 
RS-485  
User supplied based on 
cable specifications 
 
Maximum Devices  
and Cable Length 
 
RS-232 
1 Device, 50ft (15m) 
 
RS-485 
30 Devices, 2000ft 
 
 
 
       (600m) 
 
Ambient Conditions 
-40 to 85°C 
   0 
to 
95% 
Humidity 
   (Non-condensing) 
 
Mounting 
 
35mm DIN Rail 
 
Weight 
  < 
9oz 
 
Flammability Rating 
UL V-0  
 
Specifications