7700 MultiFrame Manual
7708LT Wideband RF Fiber Transmitter
Page-4 Revision 1.1
2.1. 7708LT CONNECTIONS
FIBER OUTPUT: SC/UPC, SC/APC, FC/UPC, FC/APC or ST/UPC female connector with the optical
output from the 7708LT. This connector should be connected to the FIBER IN
connector of an appropriate Evertz companion receiver model at the destination
end with a suitable fiber optic cable. The 7708LT may transmit 1310nm, CWDM or
DWDM wavelengths as indicated by the part number on the card ejector. The
standard connector type is UPC. This connector type is compatible with standard
PC connectors, but for optimal return loss performance, Evertz recommends the
use of UPC fiber terminations throughout the system. The optional APC
connectors provide further enhanced return loss performance, and when specified,
should be used throughout the system.
RF IN: Input connector for RF signals. This connector can also provide LNB power and 22
kHz tone back to the LNB.
The RF input is protected to
the same degree as other professional RF devices,
and will withstand a degree of ESD from handling, etc.
precautions should be taken during handling, such as the use of static bags and
wrist straps. The input is not protected against lightning or other coupling of
large energy spikes.
If the installation is such that the RF input may be
susceptible to spikes (e.g. direct connection to the antenna/LNB) then
appropriate supplemental surge protection should be installed (e.g. Polyphaser).
RF OUT: Output connector provides a buffered copy of the incoming RF signal for monitoring
purposes (signal peaking, etc.) or coaxial distribution. Although not essential, if this
connector is to remain unused, it is recommended that it be terminated with an
appropriate 75 Ohm or 50 Ohm load.
2.2. CARE AND HANDLING OF OPTICAL FIBER
2.2.1. Safety
2.2.1.1. 7708LT 1310nm FP and CWDM Versions
CLASS 1 LASER PRODUCT
Background colour: yellow
Triangular band: black
Symbol: black
2.2.1.2. 7708LT DWDM Versions
INVISIBLE LASER RADIATION
DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS
CLASS 1M LASER PRODUCT
Background colour: yellow
Triangular band: black
