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INSTALLATION AND OPERATION INSTRUCTIONS
INTRODUCTION
Thank you for purchasing your American Fibertek Series 94845SL singlemode forty-eight
channel video multiplexer with bi-directional Ethernet data. Please take a few minutes to read
these installation instructions in order to obtain the maximum performance from this product.
FUNCTIONAL DESCRIPTION
The 94845SL Series units operate as a transmitter / receiver pair for the digital transmission of
forty-eight simultaneous NTSC or PAL video signals along with one channel of bi-directional
Ethernet data over one singlemode fiber optic cable. The Ethernet data channel will auto-
configure for a transmission speed of either 10 Mb/s or 100 Mb/s. An external switch is provided
for selecting MDI (straight) or MDIX (crossover) Ethernet connections.
The RT-94845SL transmitter accepts up to forty-eight video inputs in six groups containing eight
videos and multiplexes each group into a high speed serial data stream. The first group’s serial
data stream modulates a laser at 1510nm wavelength. The second group’s serial data stream
modulates a laser at 1530nm wavelength. This pattern is repeated for group’s three through six
using wavelengths 1550nm through 1610nm respectively. A Course Wave Division Multiplexer
(CWDM) combines these six wavelengths, along with the forward data wavelength of 1490nm
and the return data wavelength of 1470nm, onto a single optical output port for connection to
the fiber transmission system. Correspondingly, the RR-94845SL receiver converts the optical
signal to forty-eight independent video output signals and one data output while transmitting the
one return data channel.
The 94845SL Series product is designed to operate over an optical loss budget range of 0dB to
21dB on 9um singlemode fiber. Refer to the product specification sheet for additional
performance data.
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.
