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Member #1448472

Member Since: October 7, 2018

Country: United States

  • I see plenty of places where you can buy it. It's out there if you dig for it. Educational places, Chinese servers. A few places still link to it, it's just not really easy to find it by the filename.

    It might be helpful to know that Figure 1 is called "general 485 system configuration" and that the quotes matter if you are looking for it.

    Here is a list of all of the 18 figures as well if that might be helpful to make sure you locate the right document.

    FIGURE 1 - GENERAL 485 SYSTEM CONFIGURATION FIGURE 2 - 485 BUS WITH STUB CABLES OFF A MAIN BACKBONE CABLE FIGURE 3 - POINT - TO - POINT CONNECTION FIGURE 4 - ONE DRIVER AND MULTIPLE RECEIVERS (MULTIDROP) FIGURE 5 - ONE RECEIVER AND MULTIPLE DRIVERS FIGURE 6 - STAR CONFIGURATION (NOT RECOMMENDED) FIGURE 7 - 485 BACKPLANE EXAMPLE FIGURE 8 - 485 BUS DC CIRCUIT MODEL FIGURE 9 - MAXIMUM LINE LENGTH VERSUS SIGNALING RATE FIGURE 10 - SIMPLE DIFFERENTIAL TERMINATION FIGURE 11 - CAPACITIVE COUPLING OF THE TERMINATION RESISTOR FIGURE 12 - LOW COMMON - MODE IMPEDANCE TERMINATION FIGURE 13 - MAXIMUM NUMBER OF UNIT LOADS VERSUS COMMON - MODE VOLTAGE AND REQ FIGURE 14 - DETERMINING IF LOAD REPRESENTS A LUMPED CIRCUIT TO THE 485 BUS FIGURE 15. - NOISE MODEL FOR A 485 CIRCUIT FIGURE 16. - IDLE - LINE FAILSAFE BIAS CIRCUIT FIGURE 17. - OPEN - CIRCUIT FAILSAFE BIAS CIRCUIT FIGURE 18. - SHORTED - LINE FAILSAFE BIAS CIRCUIT

  • FYI, your link to the TBS-89-A PDF (TSB_2D00_89_2D00_A.pdf) is now a broken link.

    Do you have an updated link?

No public wish lists :(