INTRODUCTION
LBI-39152
3
INTRODUCTION
This manual provides maintenance information for the
EDACS Compact Vertical Voter (CV
2
) Interface Cards
including the Rockwell Modem Interface Card (RMIC) and
the RS-232 Interface Card.
DESCRIPTION
The CV
2
Interface Cards are available as an RS-232
Interface Card (ROA 117 2247/2) or as a Rockwell Modem
Interface Card (RMIC) (ROA 117 2247/1).
The RMIC is used when the Selector or Digital
Receiver connect to other equipment via analog paths such
as phone lines where bandwidth is <3000 Hz.
In Simulcast systems, the RMIC is normally used to
provide the analog connection from the voter (Selector) to
the site and the IMC switch. Auxiliary Receivers may also
be connected via Rockwell Modems.
The RS-232 Interface Card is used to make connection
between the Selector or Digital Receiver #1 and their
associated equipment via RS-232 paths.
In Simulcast systems without an IMC switch, the RS-
232 Interface Card is used in slot 2 to connect the Selector
to the site. If the system uses VDI, an RS-232 Interface
Card is also installed in slot 4 to connect a separate input to
Digital Receiver #1. An RS-232 Interface Card is also used
when the Auxiliary Receiver Site is connected by RS-232.
The RMIC Card is only used with Auxiliary Receiver Sites
containing modems.
INSTALLATION
Installation or removal of the CV
2
Interface Cards
involves sliding the assembly out of the VME Shelf.
NOTE
CV
2
Interface Cards may be plugged and
unplugged from the voter shelf with power applied.
However, exercise care when using the extender
card since the long ground pins are only on the
interface cards.
The physical position (slot) of the module when
installed in the voter shelf will depend on variables such as;
number of channels, number of sites and type of system
(Voted, Simulcast, and the presence of VDI). Therefore,
prior to installing any CV
2
Interface Cards, refer to the Card
Configuration Table (Refer to LBI-39153) to ensure the
proper module is installed in the proper slot.
Prior to use, the Gain Switches (S1-1 thru 4 and S1 5
thru 8) in the RMIC should be set according to the
Configuration and Alignment instructions contained in LBI-
39149, Compact Vertical Voter Maintenance Manual and
the application's Interconnect Diagrams.
When the RMIC is properly installed and operational,
all Front Panel voltage (+5V, +12V, and -12V) indicators
should be on. This will indicate that all voltages are applied
to the module. If any of the Front Panel voltage indicators
are off, refer to the Maintenance section of this manual.
Ensure the RMIC jumpers are properly installed.
Information for installing the jumpers is available in the
Maintenance section of this manual.
NOTE
Jumper and Switch settings presented in this
manual are for reference only. Always refer to the
specific application’s Installation Procedures and
Interconnect Diagrams for the settings required for
proper operation of the system.
RS-232
INTERFACE CARD
The RS-232 Interface
Card is used to make
connection between the
Selector or Digital Receiver #1
and their associated equipment
via RS-232 paths.
FRONT PANEL
INDICATORS
The RS-232 Interface
Card’s front panel is shown in
Figure 1. It has no front panel
indicators.
DESCRIPTION
When the Voter is
connected to the Main Site via
an RS-232 path, and there is no
requirement for a RM to
connect to an IMC switch, the
RS-232 Interface Card for
Digital Receiver #1 is
R
S
2
3
2
Figure 1 - RS-232
Interface Front Panel
NOTE
NOTE
