RFC-1 Accessories and Miscellaneous Circuits page 4.1
Section 4 — Accessories and Miscellaneous Circuits
4.1 Optional Accessories
Several accessories are available for the RFC-1 to extend the capabilities of the basic system. Photographs and
other literature are available from our web site http://www.sinesystems.com.
4.1.1 RP-8 Relay Panel
Every RFC-1 installation must have at least one relay panel. Installations that require more than eight channels of
telemetry and/or control can add extra relay panels. Each additional RP-8 will add eight telemetry inputs and eight
raise/lower control relay pairs. A single RFC-1 can operate up to eight RP-8 Relay Panels for a maximum of 64
channels of telemetry and control.
Additional relay panels install on the existing flat cable with a press on connector that is included with the RP-8. A
block select jumper sets the channel numbers for the new relay panel. Each RP-8 requires two rack spaces.
4.1.2 SIP-8 Status Input Panel
Similar to an RP-8 and not to be confused with the surge protector that has a similar model number, the SIP-8 offers
eight status-only inputs. Unlike the inputs of the RP-8 that require an external voltage source, the SIP-8 inputs are
activated by a switch or relay closure from an external device. It has no control relays.
The Status Input Panel connects to the existing flat cable like an RP-8 and has a block select jumper to set the
channel numbers. It requires a single rack space. This is an ideal solution for sites that have several devices that
need to be monitored in a status configuration.
4.1.2 SP-8 Surge Protector
For maximum reliability we recommend using the SP-8 Surge Protector. The SP-8 mounts on the RP-8 and protects
the telemetry inputs against voltage surges. The SP-8 also includes telephone line surge suppression that provides
significant protection for the RFC-1 against telephone line surges. The SP-8 utilizes a combination of ground plane
construction, gas arrestors, metal oxide varistors, and resistors.
The SP-8/TO is a version of the SP-8 without the telephone line surge protection. It provides surge protection for
eight telemetry inputs and is used for installations with more than one RP-8 relay panel. It is also recommended for
installations with the RAK-1 Intelligent Rack Adapter. The RAK-1 has telephone line protection built in.
4.1.4 MA-2 Modem Adapter
The Modem Adapter model MA-2 provides a means for the RFC-1 to communicate with a remote computer to log
readings remotely. Voice/DTMF capability is not lost when the MA-2 is installed. The MA-2 consists of a small
accessory board that attaches to the RFC-1 and new chassis parts to house the expanded system.
4.1.5 PA-2 Printer Adapter
The Printer Adapter model PA-2 provides a means for the RFC-1 to log readings to a parallel printer located at the
RFC-1 site. Voice/DTMF capability is not lost when the PA-2 is installed. The PA-2 consists of a small accessory
board that attaches to the RFC-1 and new chassis parts to house the expanded system.
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