Sine Systems RFC-1/B Instruction Book

The RFC-1 cannot be used be used on public coin service lines provided by the telephone
company. Connection to Party Line Service is subject to state tariffs. Contact your state
public utility commission, public service commission, or corporation commission for
information.
Mechanical Installation
The RFC-1 generates little heat and can be mounted in just about any convenient location. It
can be mounted on a desk top or in the bottom of an equipment rack, it can be wall mounted,
or it can be rack mounted with the optional RK-3 rack mount kit. The RP-8 panels should be
mounted in a standard 19" equipment rack at a location which is convenient to the necessary
control and metering sources which will be connected to it. Eight feet of cable is supplied for
interconnection between the RFC- 1 and the RP-8 panels but this cable can be replaced with a
longer one if necessary. RP-8 panels can be installed in two or more locations if desired.
Electrical Installation
The RFC-1 should be connected to a standard telephone line with the modular (RJ11C) Jack
on the front panel labeled "LINE." A seven foot cord is supplied with the RFC-1 for this
purpose. A telephone may be connected to the front panel jack labeled "TELEPHONE." When
the RFC-1 is not being used, this telephone will function normally. Alternately, the
TELEPHONE jack may be used as a dedicated control port. This is described in the "Dedicated
Control Port" section later in this chapter.
The "TELEPHONE ” jack on the front panel of the RFC-1 is connected to an internally
generated DC source in the "Local Control" mode. This supplies the power to the local
telephone and allows it to generate tones with its keypad. The DC power supplied by the RFC-
1 is a lower voltage than would normally appear on a standard telephone line. However, with
extensive field use, only one telephone has been found that would not generate tones reliably
with the DC power supplied by the RFC-1. This particular telephone was a low cost telephone
purchased from a discount retailer. Consequently, if the "Local Control" button is pushed
and "OK" is heard on the telephone but the telephone will not generate tones reliably, try a
different telephone. The best type of telephone to use is one that has good sidetone
suppression of the DTMF tones. This eliminates the annoyance hearing loud tones while
calibrating. In the high RF fields near AM transmitters, the simple, "non-electronic"
telephones work the best. In particular, the original "2500" series AT&T telephone is virtually
"bullet proof' when it comes to RF and its sidetone suppression is very good also.
The RFC-1 should be connected to the RP-8 relay panel(s) by means of 16 conductor ribbon
cable. Eight feet of this cable is supplied with the RFC-1. One ribbon cable connector is
included with the RFC-1 and one additional connector is included with each RP-8 panel. To
terminate these connectors, first slide the connector over the end of the ribbon cable. Be sure
to check three things: 1) that the color stripe is on same side as the other connectors on the
cable, 2) that the ribbon cable lines up with the little slots in the connector, and 3) that the
connector is perpendicular to the cable. If the connector is to be on the end of a cable, the
cable can emerge from the top or bottom of the connector, but either way let the cable stick
out a quarter of an inch or so. Next, squeeze the connector together with a small vice. A pair
of pliers and a couple of small blocks of wood will also work. If the vice has "gripping teeth,"
sandwich a couple of pieces of cardboard between the jaws and the connector to prevent
damage. When the connector is squeezed together sufficiently, the latches on the ends of the
connector will click. If this is an end termination, trim off any excess cable flush with the
3.00.2
Installation
page 5.2

Sine Systems RFC-1/B Specifications

General

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