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Carrier:

The carrier is switch selected either 
continuous operation or switched operation, 
controlled by RTS

Surge Protection:  

600W power dissipation at 1 mS 

Power:

Draws operating power from EIA/TIA-574 
data and control signals; no AC power or 
batteries required.  If necessary, 6-12 VDC 
can be applied to pin 9 of the EIA/TIA-574 
interface.

Temperature:  

0 to 50º C 

Humidity:

5 to 95%, noncondensing

Size:

”2.50" x 1.2" x .75"

17

Summary of Contents for 2089

Page 1: ...iniature DB 9 EIA TIA 574 to RS 485 Interface Converter SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M2089 E Doc 047043U Rev F Revised 1 22 08 C E R T I F I E D...

Page 2: ...used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and television reception The Model 2089 has been tested and found to comply with the lim...

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Page 4: ...45 Silicon Avalanche Diode surge protection 2 2 DESCRIPTION The Model 2089 EIA TIA 574 to RS 485 interface converter provides exceptional versatility in an ultra miniature package Requiring no AC pow...

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Page 6: ...nd S2 are marked with individual switch numbers 1 thru 4 Use these numbers as well as the ON designation to orient the switch properly see Figure 4 below Use a small screw driver or similar instrument...

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Page 8: ...s the amount of delay between the time the Model 2089 sees RTS and when it sends CTS Note RTS CTS Delay setting should be based upon transmission timing S2 2 Setting On 8 mSec Off no delay S2 3 and S2...

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Page 10: ...onditioned dry metallic wire between 19 and 26 AWG the higher number gauges may limit distance Standard dial up telephone circuits or leased circuits that run through signal equalization equipment are...

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Page 12: ...irmly If your cable diameter is too small or too large for our strain relief please contact our technical support We have strain relief assemblies to accommodate most cable diameters 9 Insert the stra...

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Page 14: ...RJ 11 Cable 4 Wire SIGNAL PIN PIN SIGNAL GND 1 6 GND RCV 2 4 XMT XMT 3 5 RCV XMT 4 2 RCV RCV 5 3 XMT GND 6 1 GND Connection to ground is optional RJ 45 Cable 4 Wire SIGNAL PIN PIN SIGNAL GND 2 7 GND...

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Page 16: ...the ground connection is not needed 4 2 2 DAISY CHAIN TOPOLOGY Using a daisy chain topology you may connect several Model 2089s together in a master slave arrangement Maximum distance between the uni...

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Page 18: ...S Surge Protection 600W power dissipation at 1 mS Power Draws operating power from EIA TIA 574 data and control signals no AC power or batteries required If necessary 6 12 VDC can be applied to pin 9...

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