American Fibertek MRX-91685C-SL - Manual (Page 3)

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INSTALLATION AND OPERATION INSTRUCTIONS
INTRODUCTION
Thank you for purchasing your American Fibertek Series 91685C-SL multimode sixteen channel
video multiplexer with bi-directional multi-protocol data. Please take a few minutes to read these
installation instructions in order to obtain the maximum performance from this product.
FUNCTIONAL DESCRIPTION
The 91685C-SL Series units operate as a transmitter / receiver pair for the digital transmission
of sixteen simultaneous NTSC or PAL video signals along with two channels of field
configurable bi-directional data over one multimode fiber optic cable. These data channels may
be configured as RS485 data, RS422 data, RS232 data, or Manchester data. The RS485
channel may be configured for 2-wire (half duplex) or 4-wire (full duplex).
NOTE: This unit is shipped with Data Channel 1 and Data Channel 2 in the RS485 4-wire
configuration. For other configurations, please refer to the DATA CONFIGURATION
section for changes to the default switch settings.
The MTX-91685C-SL transmitter accepts up to sixteen video inputs in two groups of eight
videos and multiplexes each group into a high speed serial data stream. The first group’s serial
data stream, along with the two forward data channels, modulates a laser at 1310nm
wavelength. The second group’s serial data stream modulates a laser at 1550nm. A Wave
Division Multiplexer (WDM) combines these two wavelengths, along with the return data
wavelength of 850nm, onto a single optical output port for connection to the fiber transmission
system. Correspondingly, the MRX-91685C-SL receiver converts the optical signal to sixteen
independent video output signals and two forward data signals while transmitting the two return
data channels.
The individual units may be configured for rack mounting or wall mounting depending upon the
position of the included mounting hardware. Nominal dimensions of the MTX-91685C-SL and
MRX-91685C-SL are 1 ¾ inches high by 17 inches wide by 11 ½ inches deep. When mounting
hardware is included, overall width increases to 19 inches wide.
INSTALLATION
THIS INSTALLATION SHOULD BE MADE BY A QUALIFIED SERVICE PERSON AND
SHOULD CONFORM TO THE NATIONAL ELECTRICAL CODE, ANSI/NFPA 70 AND LOCAL
CODES.