Sine Systems RFC-1/B Instruction Book

connector with a pair of diagonal cutters. Connectors terminated at intermediate locations
on the cable terminate in the same way but in this case, temporarily remove the latch portion
of the connector to get it on the cable. This is done by prying apart the latches on the ends of
the connector and then pulling the connector apart.
Plan your interconnection cable before you begin installing connectors. For RP-8 panels
mounted adjacent to each other, the connectors should be placed at about six inch intervals
on the cable. Don't forget to allow a little extra cable for future expansion. Remember, if you
need to add RP-8 panels, simply add connectors to the existing cable. There is no need to
replace the cable.
RP-8 Channel Block Assignment
Each RP-8 panel in the system should be assigned to a different "block" of eight channels.
These blocks are: 00-07, 08-15, 16-23, 24-31, 32-39, 40-47, 48-55 and 56-63. Assignment to
consecutive blocks is usual but not required. Block assignment is accomplished with a small
jumper plug located on each RP-8 panel. Simply move this plug to the desired block. This is
normally of no consequence, but be aware that the RFC-1 "sits" on channel 63 during idle
conditions (in between telephone calls). If the last block of channels are used (56-63), the
telemetry relay for channel 63 will be energized during idle periods.
RP-8 Terminal Blocks
All control, telemetry and power connections made to the RP-8 panels are made through the
small screw-terminal blocks. These terminal blocks are removable from the PC board which
makes installation, modification and testing much easier. To remove them, simply pull them
straight out. Note that they are designed in such a way that they can be reinstalled in either
of two ways: vertically or horizontally. Vertical installation is usually better if you want to
use it more like a plug and horizontal installation is easier if you want to use it more like a
barrier strip. Either way is fine but be aware that they can be installed backwards. In the
case of a control output, the normally open and the normally closed contacts would be
exchanged so you might be unintentionally turning something on if you plugged it in
backwards.
RP-8 Panel Identification
The front of the RP-8 Relay Panel includes a place to record data around each telemetry
adjustment access hole. Viewed from the front of the panel, the lowest channel number will
be on the far right . It is often desirable to write the channel number in the space indicated as
well as any other information pertinent to that channel. A "Sharpie" pen is a good method to
hand write information and dry-transfer lettering is a way to produce a more professional
look. Lettering can be cleaned from the panels using acetone. Acetone is a strong solvent and
should be kept away from plastics including the "Local Control" pushbutton. Acetone is also
highly flammable.
Power Connection
Power to operate the RFC-1 and up to eight RP-8 panels is supplied by a 12 volt AC "wall 
plug" transformer supplied with the RFC-1. This transformer has a U.S.A, standard plug and
is designed for 120 volts AC, 50-60 Hz. The leads of this transformer should be stripped and
connected to the terminals marked "12 VAC" on any one of the RP-8 panels in the system. If
3.00.2
Installation
page 5.3

Sine Systems RFC-1/B Specifications

General

Brand	Sine Systems
Model	RFC-1/B
Category	Remote Control
Language	English