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-5C can be placed in service, it must be installed in a multiplexer shelf. Installation
involves determining the module slot in the Main Shelf or Repeater Shelf where the module will be
installed, inserting a Module Adapter into the rear of the shelf behind the module slot, connecting all
signal wiring to the Module Adapter, 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 this module
into an existing multiplexer shelf. Refer to the multiplexer manual for more information.
The following instructions are provided for installing RFL VF-5C 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 module for any visible signs of shipping damage. If you suspect damage
to the module, immediately call RFL Customer Service at the number listed at the bottom of
this page.
2. Determine the module slot in the Main Shelf or Repeater Shelf where the module will be
installed.
The RFL VF-5C module occupies one module slot in the Main Shelf or Repeater
Shelf.
3. Determine which Module Adapter will be used to make connections to the RFL VF-5C module.
Each module in the IMUX 2000 multiplexer requires a Module Adapter. The
module adapter provides the appropriate connector for the desired interface.
There are six Module Adapters compatible with the RFL VF-5C:
MA-301 The MA-301 accepts a 50-pin Telco connector (Amphenol 57-30500 or equivalent,
as shown in Figure 1.) One MA-301 Module Adapter can be used to connect up to
three RFL VF-5C modules, for a total of up to six voice channels. If you will be
using more than one module with the MA-301, they must be inserted into adjacent
slots in the multiplexer. Ribbon cables are provided with the MA-301 to make
connections to it from the second and third module locations as shown in Figure 2.
MA-301A
The MA-301A is used to isolate the VF-5C from SWC type surges
sometimes present on 4-wire voice lines. This module adapter occupies two rear
slots in the IMUX 2000 chassis. A terminal strip is provided for hard wire
connections to the voice circuit for Channel
1 and Channel 2, as shown in Figure 3.
E&M signaling connections are not available when using the MA-301A.
RFL VF-5C RFL Electronics Inc.
October 8, 2012 4 (973) 334-3100
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