COMMUNICATIONS PORT / REMOTE RESET
The Model 601 comes standard with a 9-pin sub-D connector for remote communications. The Model 601
supports RS-485 communication standard. This standard allows up to 99 Model 601s to be controlled and
monitored from a single remote personal computer. NOTE: An RS-485MS-2W module and software is
required to operate the communications bus. (Refer to RS-485MS-2W Installation Instructions for more infor-
mation on this subject.) The communications port also provides connections for remote reset as shown on
the right.
5
4
3
2
1
6
7
8
9
Normally Open Push Button
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