Appendix; Figure 1: Typical Rs-485 Network - SymCom RS485MS-2W Installation Instructions Manual

Communications module
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4. If you have any Model 777's that were built before August 1998, they
may have been programmed using a proprietary protocol from
Cimetrics. All Model 777's that are programmed for Modbus have a
small sticker near the 9 pin interface connector that says "Modbus".
These Model 777's have the option "11" code in the part number. If you
have a Model 777 that is not Modbus, it can be re-chipped for a nominal
fee. Please contact SymCom, Inc. at the number at the end of this
section for more information.
If you continue to have problems, please contact SymCom, Inc. at
(800)-843-8848 or (605) 348-5580

Figure 1: Typical RS-485 Network

Figure 1:
Typical RS-485 Network

Appendix

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