Moxa Technologies A51, A60 manual Installation

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C hapter 2

Installation

2.1 Installation Procedure

Even though the local and remote ports of A60's are labeled on the surface of the A60 converter, please take care when connecting the cables to the A60 and the hosts. Note that the surge from both the local and the remote site is blocked by the A60. However , the LED indicators and the local host are under surge protection if and only if the surge comes in from the remote port of A60. Hence, it is recommended to keep A60 as close as possible to the local host. Otherwise, you may risk damaging the A60 itself as well as the local host if surge occurs between the A60's local port and the host.

In addition, you may need a couple of A60s, if both local and remote hosts are to be protected from surge.

Note that remote port and Terminal Block are actually the same except that DCD signal is not available in Terminal Block.

It is recommended to connect GND at the Terminal Block to the earth ground to provide a ground path to prevent electric shock caused by lightning, no matter RJ-45 or Terminal Block is used.

~33~

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Contents A50/A51/A60 A50/A51 A60 Copyright Notice Moxa Internet Services Table of Contents Part II A60 RS-232 Surge Protection Page Overview IntroductionIntroduction Features and SpecificationsSpecifications A50/A51 with Mounting Kit Package Check List Introduction Switch Function Description Installation ProcedureSwitch settings table of SW1 and SW2 is as follows LED IndicatorsRS-422/RS-485 Pinouts A50/A51 RJ-45 Jack Terminal Block Connector Pinouts Signals Chapter Operation Point-to-point Wire Full DuplexWire Half Duplex Multidrop SW1 DTE Simplex/Transmit, Receive A50/A51A50/A51 Self Test Operation Appendix a RS-232 Pinouts & Cable Wiring Appendix a RS-232 Pinouts and Cable Wiring Appendix a RJ-45 Connector DB-25 Female P e n dxi B Appendix B Impedance Matching and Termination Resistors Appendix C Troubleshooting Appendix C Troubleshooting Chapter Introduction Features A60 with Mounting Kit ~32~ Installation TxD indicator signal from local port RxD indicator signal from remote port ~36~ Ppendix a Appendix a ∙ RS-232 Pinouts and Cable Wiring ∙ ~40~ Ppendix B