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INSTALLATION AND OPERATION INSTRUCTIONS
INTRODUCTION
Thank you for purchasing your American Fibertek RR-915C-SL multimode video receiver with bi-
directional multi-protocol data and bi-directional contact closure. Please take a few minutes to read
these installation instructions in order to obtain the maximum performance from this product.
FUNCTIONAL DESCRIPTION
The RR-915C-SL operates as half of a transmitter / receiver pair for the transmission of high
performance 10 bit digital NTSC, PAL, RS170, or RS343 video signals. The RR-915C-SL also supports
two bi-directional data channels. These data channels are configured as follows:
Channel 1: RS485 (2 or 4 wire) data, RS422 data, RS232 data, or Manchester data
Channel 2: Contact Closure (dry)
NOTE: This unit is shipped with Channel 1 in the RS485 4-wire configuration. For other
configurations, please refer to the DATA CONFIGURATION section for changes to the default
switch settings.
The RR-915C-SL is designed to operate with the MT-915C-SL or RT-915C-SL video transmitter with bi-
directional data over one multimode fiber optic cable.
The RR-915C-SL multiplexes up to two data signals into a high speed serial data stream. This serial
data stream modulates a laser at 1550 nm wavelength. The RR-915C-SL also detects and
demultiplexes a return optical serial data stream signal containing a single video input signal along with
up to two data channels at 1310 nm wavelength. The 915C-SL Series product is designed to operate
over an optical loss budget range of 0 to 21 dB when used on 9 um singlemode fiber. Refer to the
product specification sheet for additional performance data.
The RS485 channel may be configured for 2-wire (half duplex) or 4-wire (full duplex) with or without
biasing. Switch selectable internal 120 ohm terminations are available for RS422 or RS485 data.
This unit is designed for rack mounting in either of two American Fibertek subracks available. The
subrack model numbers are SR-20/2 or SR-20D/2. Slide in rack mounting, detachable terminal blocks,
and LED indicators provide for easy installation and monitoring of video, data, and optical power.
The RR-915C-SL is designed for rack mounting only. For a modular stand alone version please see the
MR-915C-SL.