RAD Data comm LRS-24 with CM-2 Module, Power Off, Troubleshooting, To turn off LRS-24 CM-1

Chapter 2 Installation and Setup LRS-24Installation and Operation Manual

•I/O Module(s): Refer to the Installation and Operation Manual of the I/O modules.

If LRS-24 does not show normal indications, see Chapter 5, Troubleshooting and Diagnostics.

Power Off

➤To turn off LRS-24 (CM-1):

1.If an external phantom feed voltage source is connected to LRS-24, turn off that source (for example, the LRS-PS-FEED).

2.Set the ON/OFF switch(es) of the PS module(s) to OFF.

3.Disconnect the DC power, if applicable.

Troubleshooting

If a malfunction occurs in one or more of the links served by a module installed in LRS-24, perform the following preliminary checks:

•If the problem affects all the links:

−Check that all the indicators on the panels of the PS modules are green.

−If any indicator is red, replace the corresponding PS module.

•Check that all the modules are properly installed.

•Check that all the cable connections are made in accordance with the installation plan.

•Check that all the communication equipment on the link is operating properly.

•Check for proper configuration of the local and remote equipment.

If these checks do not correct the problem, use a supervision terminal connected to the MANAGEMENT RS-232 port of the CM-1 module to identify the fault and replace the corresponding module, see Chapter 5, Troubleshooting and Diagnostics.

LRS-24 with CM-2 Module

Power On

➤To turn on LRS-24 (CM-2):

1.Set the ON/OFF switches on the panels of the LRSI-PSP** modules to ON.

2.Supply the DC power, if applicable.

➤To supply external phantom feed voltages:

1.Turn on LRS-24.

2.Turn on the source, i.e. LRS-PS-FEED.

2-28 Initial Operation and Basic Checks

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