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 RFL VF-8A 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 a Module Adapter into the rear of the shelf behind the module slot, connecting all
signal and power wiring to the Module Adapter, checking the settings of all switches, and inserting the
module into the front of the shelf.
NOTES
Power supply and time slot considerations may affect the installation of this module into an
existing multiplexer shelf. Refer to the multiplexer manual for more information.
The following instructions are provided for installing an RFL VF-8A module into an existing system.
If the module was included as part of a system, installation was done at the factory. Otherwise, proceed
as follows:
1. Carefully inspect the module for any visible signs of shipping damage. If you suspect damage
to the module, immediately call RFL Customer Service at the number shown at the bottom of
this page.
2. Determine the module slot in the Main Shelf or Expansion Shelf where the module will be
installed.
RFL VF-8A module occupies one module slot in the Main Shelf or Expansion
Shelf.
3. Determine which Module Adapter will be used to make connections to the RFL VF-8A
module.
Each module in the IMUX 2000 multiplexer requires a Module Adapter. The
module adapter provides the appropriate connector for the desired interface.
The Module Adapter that is used with the RFL VF-8A is the MA-306.
MA-306 The MA-306 provides an RJ-11, FXS jack for the local phone
connection, and an FXO jack for future use.
4. Insert the MA-306 Module Adapter into the rear of the slot which will hold the RFL VF-8A
module, and make all connections to the module adapter.
Connect the RJ-11 plug for the local phone into the MA-306’s FXS jack. The only
electrical interface connections that have to be made to the RFL VF-8A are the
RING and TIP connections, which are made to terminals 3 and 4 on the RJ-11
connector as shown in Figure 1.
5. Refer to Figure 2 and Table 1 for the location and function of DIP switches on the VF-8A.
RFL VF-8A RFL Electronics Inc.
August 6, 2010 4 (973) 334-3100
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