125768-01 Bently Nevada Industrial Monitoring System Rear Card

Description

125768-01 The Rack Interface Module can use one of two I/O module types: the Rack

Interface I/O Module and the Data Manager I/O Module. These I/O modules let

you connect a 3500 host computer and Communication Processors (TDIX or DDIX)

to a 3500 rack and daisy-chain racks together.

125768-01 This section describes how to use the connectors on the I/O modules, lists what

cables to use, and shows the pin outs of the cables.

125768-01 Only one Rack Interface I/O Module at a time can be installed behind the Rack

Interface Module (in a Rack Mount or a Panel Mount rack) or above the Rack

Interface Module (in a Bulkhead rack). See Section 4.1

Also, one Data Manager I/O Module 125768-01 may be installed between the Power Input

Modules and the Rack Interface I/O Module (in a Rack Mount or a Panel Mount

rack) or above the Power Supplies between the Power Input Modules and the

Rack Interface I/O Module (in a Bulkhead rack). See Section 4.2

125768-01 The two types of Rack Interface I/O Modules that are available for the 3500

Monitoring System are the RS-232/RS-422 I/O Module and the Modem I/O Module.

The features below are common to both I/O Modules.

The Rack Interface I/O Module must be installed behind the Rack Interface Module

(in a Rack Mount or Panel Mount rack) or above the Rack Interface Module (in a

Bulkhead rack).

1) OK RELAY: The OK Relay is

normally energized and

indicates whether the 3500

Monitoring System is OK

RACK RS-422: This

connector is used to daisy

chain to the next 3500 rack.

Up to 12 racks can be

daisy-chained together.

Only RS-422 can be used

for this connection.

2) EXTERNAL CONTACTS:

• Trip Multiply
• Rack Alarm Inhibit
• Rack Reset
• OK RELAY

  The following items will cause the OK Relay to go NOT OK:

  • Removing the Rack Interface 125768-01 Module from the 3500 rack
  • Plugging a module into the 3500 rack (during self-test)
  • Transducer going not OK (except Keyphasor transducer)
  • Hardware failure within a module
  • Configuration Failure
  • Slot ID Failure
  • Any module in the 3500 rack which has detected a fault
  • Communication Failure with any module.
  • If any of the following security options have been configured and their conditions

  met:

  Rack Address is changed while the RIM is in Run Mode.

  Any module is inserted or removed from the rack.

  The Key Switch is changed from Run Mode to Program Mode.

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