Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
INSTALLATION
Before the DA-291B module can be placed in service, it must be installed in a multiplexer shelf.
Installation involves determining the module slot in the Main Shelf or Expansion Shelf where the
module will be installed, inserting an I/O adapter module into the rear of the shelf behind the module
slot, connecting all signal wiring to the I/O adapter module, checking the settings of all switches and
jumpers, and inserting the module into the front of the shelf.
NOTE
Power supply and time slot considerations may affect the installation of RFL DA-291B
modules into an existing multiplexer shelf. Refer to the portions of your multiplexer operation
manual covering “Channel Module Configuration Guidelines” and “Adding More Channel
Modules To Existing Systems” for more information.
The following instructions are provided for installing RFL DA-291B modules into existing
systems. If the module was included as part of a system, installation was done at the factory,
otherwise, proceed as follows:
1. Carefully inspect the RFL DA-291B and its I/O adapter module for shipping damage.
If you suspect damage to the module or its Module Adapter, immediately contact
RFL’s Customer Service Department at the number shown at the bottom of this page.
2. Determine which module slot in the Main Shelf or Expansion Shelf the RFL DA-291B will
be installed in.
The RFL DA-291B module occupies one or two module slots in the Main Shelf or
Expansion Shelf depending on the Module Adapter selected. Refer to the “as
supplied” drawings furnished with the equipment for more information.
3. Determine which I/O Adapter Module will be used to make connections to the RFL DA-291B
module.
Each RFL DA-291B module installed in an IMUX 2000 multiplexer requires an
I/O Adapter Module. The I/O Adapter Module provides the appropriate
connections for the desired interface.
There are four Module Adapters for the RFL DA-291B:
Module
Adapter
Part Number Interface Type Socket Figure
MA-420A
MA-440A
MA-425
MA-404A
9547-169221
9547-169241
9547-16925
9547-16381
2-Port RS-232
4-Port RS-232
2-Port RS-422
5-Port RS-232*
9 pin D-subminiature (DB-9)
9 pin D-subminiature (DB-9)
9 pin D-subminiature (DB-9)
5 RJ-11 Jacks*
1a
1b
1c
1d
* Available Channels 1 thru 4 only.
Make sure the I/O Module Adapter you are installing is the correct one for the
desired application.
RFL DA-291B RFL Electronics Inc.
April 13, 2010 3 (973)
334-3100
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