F Communications Module Installation - Siemens MJ-4A Installation And Operation Manual

Appendix F: Communications Module Installation

F Communications Module Installation

The MJ-4 Communications Module is mounted directly to
the Main Processor board. There are two versions of the
Communications Module:
• Fiber Optic Communications Module, shown in Fig-
ure F .1.
• RS-232/485 Communications Module, shown in Fig-
ure F .2.
Refer to the MJ-4Communications Module Installation
Manual (Siemens Manual # 21-115-527-024 for complete
information on installing and testing the Communications
Module.
Fiber Optic Communications Module
Figure F.1
70
RS-232/485 Communications Module
Figure F.2
Siemens Energy, Inc.